TY  - JOUR
AU  - Mrđan, Gorana S.
AU  - Matijević, Borko M.
AU  - Vastag, Gyongyi
AU  - Božić, Aleksandra R.
AU  - Marinković, Aleksandar
AU  - Milčić, Miloš
AU  - Stojiljković, Ivana
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4497
AB  - Carbohydrazones are compounds that are increasingly studied due to their wide potential biological activity. Monocarbohydrazones (mCHs), as one of the carbohydrazone derivatives, so far have been poorly investigated. For a more detailed study, in this paper, eighteen compounds of monocarbohydrazones (eight known and ten newly synthesized derivatives) were synthesized and characterized using NMR and IR spectroscopy. As carbohydrazones show E/Z isomerization caused by the presence of the imino group, some of the synthesized mCHs are in the form of a mixture of these two isomers. The effects of specific and nonspecific solvent-solute interactions on the UV absorption maxima shifts were evaluated using linear free energy relationships principles, i.e., using Kamlet-Taft's and Catalan's models. For more information about interactions between dissolved substance and the surrounding medium, correlations have been made with Hansen's solubility parameters. The influence of the structure on the spectral behavior of the compounds tested was interpreted using Hammett's equation. Experimentally obtained physicochemical properties of mCHs were compared to and confirmed with computational methods that included TD-DFT calculations and MP2 geometry optimizations. Graphic abstract
PB  - Springer International Publishing Ag, Cham
T2  - Chemical Papers
T1  - Synthesis, solvent interactions and computational study of monocarbohydrazones
EP  - 2674
IS  - 8
SP  - 2653
VL  - 74
DO  - 10.1007/s11696-020-01106-4
ER  - 

@article{
author = "Mrđan, Gorana S. and Matijević, Borko M. and Vastag, Gyongyi and Božić, Aleksandra R. and Marinković, Aleksandar and Milčić, Miloš and Stojiljković, Ivana",
year = "2020",
abstract = "Carbohydrazones are compounds that are increasingly studied due to their wide potential biological activity. Monocarbohydrazones (mCHs), as one of the carbohydrazone derivatives, so far have been poorly investigated. For a more detailed study, in this paper, eighteen compounds of monocarbohydrazones (eight known and ten newly synthesized derivatives) were synthesized and characterized using NMR and IR spectroscopy. As carbohydrazones show E/Z isomerization caused by the presence of the imino group, some of the synthesized mCHs are in the form of a mixture of these two isomers. The effects of specific and nonspecific solvent-solute interactions on the UV absorption maxima shifts were evaluated using linear free energy relationships principles, i.e., using Kamlet-Taft's and Catalan's models. For more information about interactions between dissolved substance and the surrounding medium, correlations have been made with Hansen's solubility parameters. The influence of the structure on the spectral behavior of the compounds tested was interpreted using Hammett's equation. Experimentally obtained physicochemical properties of mCHs were compared to and confirmed with computational methods that included TD-DFT calculations and MP2 geometry optimizations. Graphic abstract",
publisher = "Springer International Publishing Ag, Cham",
journal = "Chemical Papers",
title = "Synthesis, solvent interactions and computational study of monocarbohydrazones",
pages = "2674-2653",
number = "8",
volume = "74",
doi = "10.1007/s11696-020-01106-4"
}

Mrđan, G. S., Matijević, B. M., Vastag, G., Božić, A. R., Marinković, A., Milčić, M.,& Stojiljković, I.. (2020). Synthesis, solvent interactions and computational study of monocarbohydrazones. in Chemical Papers
Springer International Publishing Ag, Cham., 74(8), 2653-2674.
https://doi.org/10.1007/s11696-020-01106-4

Mrđan GS, Matijević BM, Vastag G, Božić AR, Marinković A, Milčić M, Stojiljković I. Synthesis, solvent interactions and computational study of monocarbohydrazones. in Chemical Papers. 2020;74(8):2653-2674.
doi:10.1007/s11696-020-01106-4 .

Mrđan, Gorana S., Matijević, Borko M., Vastag, Gyongyi, Božić, Aleksandra R., Marinković, Aleksandar, Milčić, Miloš, Stojiljković, Ivana, "Synthesis, solvent interactions and computational study of monocarbohydrazones" in Chemical Papers, 74, no. 8 (2020):2653-2674,
https://doi.org/10.1007/s11696-020-01106-4 . .

TY  - JOUR
AU  - Janjić, Goran
AU  - Jelić, Stefan
AU  - Trišović, Nemanja
AU  - Popović, Dragan
AU  - Đorđević, Ivana
AU  - Milčić, Miloš
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4527
AB  - Fluorination of compounds causes an increase in the proton-donating ability and a decrease in the proton-accepting capacity of groups in their vicinity. The formation of F center dot center dot center dot F interactions is followed by the shift of the electron density in the area of F center dot center dot center dot F contact, which creates a new region with a larger surface area, a higher negative potential, and, hence, a more pronounced accepting ability. The new region also has a greater ability to form multiple (simultaneous) interactions with species from the environment, thus compensating for the reduction of the accepting capacity of the groups in the vicinity. This phenomenon explains not only the abundance of F center dot center dot center dot F interactions in crystal structures, but also a large number of structures with F center dot center dot center dot O interactions. Only C-H center dot center dot center dot F interactions are more numerous than F center dot center dot center dot F interactions in crystal structures, which indicates a high affinity of fluorinated compounds for nonpolar groups.
PB  - Amer Chemical Soc, Washington
T2  - Crystal Growth & Design
T1  - New Theoretical Insight into Fluorination and Fluorine-Fluorine Interactions as a Driving Force in Crystal Structures
EP  - 2951
IS  - 5
SP  - 2943
VL  - 20
DO  - 10.1021/acs.cgd.9b01565
ER  - 

@article{
author = "Janjić, Goran and Jelić, Stefan and Trišović, Nemanja and Popović, Dragan and Đorđević, Ivana and Milčić, Miloš",
year = "2020",
abstract = "Fluorination of compounds causes an increase in the proton-donating ability and a decrease in the proton-accepting capacity of groups in their vicinity. The formation of F center dot center dot center dot F interactions is followed by the shift of the electron density in the area of F center dot center dot center dot F contact, which creates a new region with a larger surface area, a higher negative potential, and, hence, a more pronounced accepting ability. The new region also has a greater ability to form multiple (simultaneous) interactions with species from the environment, thus compensating for the reduction of the accepting capacity of the groups in the vicinity. This phenomenon explains not only the abundance of F center dot center dot center dot F interactions in crystal structures, but also a large number of structures with F center dot center dot center dot O interactions. Only C-H center dot center dot center dot F interactions are more numerous than F center dot center dot center dot F interactions in crystal structures, which indicates a high affinity of fluorinated compounds for nonpolar groups.",
publisher = "Amer Chemical Soc, Washington",
journal = "Crystal Growth & Design",
title = "New Theoretical Insight into Fluorination and Fluorine-Fluorine Interactions as a Driving Force in Crystal Structures",
pages = "2951-2943",
number = "5",
volume = "20",
doi = "10.1021/acs.cgd.9b01565"
}

Janjić, G., Jelić, S., Trišović, N., Popović, D., Đorđević, I.,& Milčić, M.. (2020). New Theoretical Insight into Fluorination and Fluorine-Fluorine Interactions as a Driving Force in Crystal Structures. in Crystal Growth & Design
Amer Chemical Soc, Washington., 20(5), 2943-2951.
https://doi.org/10.1021/acs.cgd.9b01565

Janjić G, Jelić S, Trišović N, Popović D, Đorđević I, Milčić M. New Theoretical Insight into Fluorination and Fluorine-Fluorine Interactions as a Driving Force in Crystal Structures. in Crystal Growth & Design. 2020;20(5):2943-2951.
doi:10.1021/acs.cgd.9b01565 .

Janjić, Goran, Jelić, Stefan, Trišović, Nemanja, Popović, Dragan, Đorđević, Ivana, Milčić, Miloš, "New Theoretical Insight into Fluorination and Fluorine-Fluorine Interactions as a Driving Force in Crystal Structures" in Crystal Growth & Design, 20, no. 5 (2020):2943-2951,
https://doi.org/10.1021/acs.cgd.9b01565 . .

TY  - JOUR
AU  - Božić, Aleksandra R.
AU  - Filipović, Nenad R.
AU  - Verbić, Tatjana
AU  - Milčić, Miloš
AU  - Todorović, Tamara
AU  - Cvijetić, Ilija
AU  - Klisurić, Olivera
AU  - Radišić, Marina
AU  - Marinković, Aleksandar
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4355
AB  - The substituent and solvent effect on intramolecular charge transfer (ICT) of twelve monocarbohydrazones (mCHs) were studied using experimental and theoretical methodology. The effects of specific and non-specific solvent-solute interactions on the UV-Vis absorption maxima shifts were evaluated using linear free energy relationships (LFERs) principles, i.e. using the Kamlet-Taft and Catalan models. Linear free energy relationships in the form of single substituent parameter equation (SSP) was used to analyze substituent effect on UV-Vis, NMR and pK(a) change. According to crystallographic data and quantum chemical calculations, the trans (E) form was found to be more stable. A photochromism of compounds with 2-hydroxyphenyl and 2-pyridylimino groups substituted at imine carbon atom results in E/Z isomerization due to creation of intermolecular hydrogen bond in E and Z form, respectively. Multiple stage mass spectrometry (MS-MSn) analysis was applied to define main fragmentation pathways. Furthermore, the experimental findings were interpreted with the aid of ab initio MP2/6-311 G(d,p) and time-dependent density functional (TD-DFT) methods. TD-DFT calculations were performed to quantify the efficiency of intramolecular charge transfer (ICT) with the aid of the charge-transfer distance (DCT) and the amount of transferred charge (QCT) calculation. It was found that both substituents and solvents influence electron density shift i.e. extent of conjugation, and affect ICT character in the course of excitation.
PB  - Elsevier, Amsterdam
T2  - Arabian Journal of Chemistry
T1  - A detailed experimental and computational study of monocarbohydrazones
EP  - 953
IS  - 1
SP  - 932
VL  - 13
DO  - 10.1016/j.arabjc.2017.08.010
ER  - 

@article{
author = "Božić, Aleksandra R. and Filipović, Nenad R. and Verbić, Tatjana and Milčić, Miloš and Todorović, Tamara and Cvijetić, Ilija and Klisurić, Olivera and Radišić, Marina and Marinković, Aleksandar",
year = "2020",
abstract = "The substituent and solvent effect on intramolecular charge transfer (ICT) of twelve monocarbohydrazones (mCHs) were studied using experimental and theoretical methodology. The effects of specific and non-specific solvent-solute interactions on the UV-Vis absorption maxima shifts were evaluated using linear free energy relationships (LFERs) principles, i.e. using the Kamlet-Taft and Catalan models. Linear free energy relationships in the form of single substituent parameter equation (SSP) was used to analyze substituent effect on UV-Vis, NMR and pK(a) change. According to crystallographic data and quantum chemical calculations, the trans (E) form was found to be more stable. A photochromism of compounds with 2-hydroxyphenyl and 2-pyridylimino groups substituted at imine carbon atom results in E/Z isomerization due to creation of intermolecular hydrogen bond in E and Z form, respectively. Multiple stage mass spectrometry (MS-MSn) analysis was applied to define main fragmentation pathways. Furthermore, the experimental findings were interpreted with the aid of ab initio MP2/6-311 G(d,p) and time-dependent density functional (TD-DFT) methods. TD-DFT calculations were performed to quantify the efficiency of intramolecular charge transfer (ICT) with the aid of the charge-transfer distance (DCT) and the amount of transferred charge (QCT) calculation. It was found that both substituents and solvents influence electron density shift i.e. extent of conjugation, and affect ICT character in the course of excitation.",
publisher = "Elsevier, Amsterdam",
journal = "Arabian Journal of Chemistry",
title = "A detailed experimental and computational study of monocarbohydrazones",
pages = "953-932",
number = "1",
volume = "13",
doi = "10.1016/j.arabjc.2017.08.010"
}

Božić, A. R., Filipović, N. R., Verbić, T., Milčić, M., Todorović, T., Cvijetić, I., Klisurić, O., Radišić, M.,& Marinković, A.. (2020). A detailed experimental and computational study of monocarbohydrazones. in Arabian Journal of Chemistry
Elsevier, Amsterdam., 13(1), 932-953.
https://doi.org/10.1016/j.arabjc.2017.08.010

Božić AR, Filipović NR, Verbić T, Milčić M, Todorović T, Cvijetić I, Klisurić O, Radišić M, Marinković A. A detailed experimental and computational study of monocarbohydrazones. in Arabian Journal of Chemistry. 2020;13(1):932-953.
doi:10.1016/j.arabjc.2017.08.010 .

Božić, Aleksandra R., Filipović, Nenad R., Verbić, Tatjana, Milčić, Miloš, Todorović, Tamara, Cvijetić, Ilija, Klisurić, Olivera, Radišić, Marina, Marinković, Aleksandar, "A detailed experimental and computational study of monocarbohydrazones" in Arabian Journal of Chemistry, 13, no. 1 (2020):932-953,
https://doi.org/10.1016/j.arabjc.2017.08.010 . .

TY  - CONF
AU  - Trišović, Nemanja
AU  - Jelić, Stefan
AU  - Popović, Dragan
AU  - Đorđević, Ivana
AU  - Milčić, Miloš
AU  - Janjić, Goran
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4408
AB  - The results of the crystallographic analysis in combination with quantum chemical calculations have shown that fluorination of organic compounds causes an increase in the proton-donating ability and a decrease in the proton-accepting capacity of the groups in their neighbourhood1 . The establishment of F∙∙∙F interactions causes the electron density to shift towards the area of F∙∙∙F contact, thus creating a new region with a higher negative potential and the more pronounced accepting ability. This new region has a larger surface area and it is able to form simultaneous interactions with species from the crystal environment. This compensates the reduction of the accepting capacity of the groups in the neigbourhood of the interacting F atoms. Taking into account the formation of this new region, not only the abundance of F∙∙∙F interactions in the crystal structures (the second largest group of interactions), but also a large number of structures with F∙∙∙O interactions (third largest group of interactions) can be explained. Only the C–H∙∙∙F interactions are more numerous than F∙∙∙F interactions, indicating an increased affinity of fluorinated compounds for non-polar groups.
PB  - Commission on Quantum Crystallography of IUCr
C3  - Book of Abstracts - Quantum Crystallography Online Meeting 2020, QCrOM2020
T1  - Fluorination as a Driving Force in Crystal Structures
SP  - 35
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4408
ER  - 

@conference{
author = "Trišović, Nemanja and Jelić, Stefan and Popović, Dragan and Đorđević, Ivana and Milčić, Miloš and Janjić, Goran",
year = "2020",
abstract = "The results of the crystallographic analysis in combination with quantum chemical calculations have shown that fluorination of organic compounds causes an increase in the proton-donating ability and a decrease in the proton-accepting capacity of the groups in their neighbourhood1 . The establishment of F∙∙∙F interactions causes the electron density to shift towards the area of F∙∙∙F contact, thus creating a new region with a higher negative potential and the more pronounced accepting ability. This new region has a larger surface area and it is able to form simultaneous interactions with species from the crystal environment. This compensates the reduction of the accepting capacity of the groups in the neigbourhood of the interacting F atoms. Taking into account the formation of this new region, not only the abundance of F∙∙∙F interactions in the crystal structures (the second largest group of interactions), but also a large number of structures with F∙∙∙O interactions (third largest group of interactions) can be explained. Only the C–H∙∙∙F interactions are more numerous than F∙∙∙F interactions, indicating an increased affinity of fluorinated compounds for non-polar groups.",
publisher = "Commission on Quantum Crystallography of IUCr",
journal = "Book of Abstracts - Quantum Crystallography Online Meeting 2020, QCrOM2020",
title = "Fluorination as a Driving Force in Crystal Structures",
pages = "35",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4408"
}

Trišović, N., Jelić, S., Popović, D., Đorđević, I., Milčić, M.,& Janjić, G.. (2020). Fluorination as a Driving Force in Crystal Structures. in Book of Abstracts - Quantum Crystallography Online Meeting 2020, QCrOM2020
Commission on Quantum Crystallography of IUCr., 35.
https://hdl.handle.net/21.15107/rcub_technorep_4408

Trišović N, Jelić S, Popović D, Đorđević I, Milčić M, Janjić G. Fluorination as a Driving Force in Crystal Structures. in Book of Abstracts - Quantum Crystallography Online Meeting 2020, QCrOM2020. 2020;:35.
https://hdl.handle.net/21.15107/rcub_technorep_4408 .

Trišović, Nemanja, Jelić, Stefan, Popović, Dragan, Đorđević, Ivana, Milčić, Miloš, Janjić, Goran, "Fluorination as a Driving Force in Crystal Structures" in Book of Abstracts - Quantum Crystallography Online Meeting 2020, QCrOM2020 (2020):35,
https://hdl.handle.net/21.15107/rcub_technorep_4408 .

TY  - JOUR
AU  - Rančić, Milica
AU  - Stojiljković, Ivana
AU  - Milošević, Milena D.
AU  - Prlainović, Nevena
AU  - Jovanović, Maja
AU  - Milčić, Miloš
AU  - Marinković, Aleksandar
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4139
AB  - The substituent and solvent effect on intramolecular charge transfer (ICT) in 5-aryli dene-3-methyl-2,4-thiazolidinediones (series 1) and 5-arylidene-3-phenyl-2,4-thiazolidinediones (series 2) was studied by using experimental and theoretical methodology. The effect of specific and non-specific solvent-solute interactions on the UV-vis absorption maxima shifts was evaluated by using the Kamlet-Taft and Catalan solvent parameter sets. Linear free energy relationships (LFERs) have been applied to the UV-vis and C-13 NMR data by using SSP (single substituent parameter) and DSP (dual substituent parameters). Comparative LFER analysis of 10 styrenic series was performed in order to distinguish contribution of structural and electronic substituent effect on extent of p-polarization in a side chain (vinyl) group. Furthermore, the experimental findings were interpreted with the aid of ab initio MP2 and time-dependent density functional (TD-DFT) methods. TD-DFT calculations are performed to quantify the efficiency of intramolecular charge transfer (ICT) allowing us to define the charge-transfer distance (DCT), amount of transferred charge (QCT), and difference of dipole moments between the ground and excited states (mu CT). It was found that both substituents and solvents influence electron density shift, i.e. extent of conjugation, and affect intramolecular charge transfer character in the course of excitation.
PB  - Elsevier, Amsterdam
T2  - Arabian Journal of Chemistry
T1  - Solvent and substituent effect on intramolecular charge transfer in 5-arylidene-3-substituted-2,4-thiazolidinediones: Experimental and theoretical study
EP  - 5161
IS  - 8
SP  - 5142
VL  - 12
DO  - 10.1016/j.arabjc.2016.12.013
ER  - 

@article{
author = "Rančić, Milica and Stojiljković, Ivana and Milošević, Milena D. and Prlainović, Nevena and Jovanović, Maja and Milčić, Miloš and Marinković, Aleksandar",
year = "2019",
abstract = "The substituent and solvent effect on intramolecular charge transfer (ICT) in 5-aryli dene-3-methyl-2,4-thiazolidinediones (series 1) and 5-arylidene-3-phenyl-2,4-thiazolidinediones (series 2) was studied by using experimental and theoretical methodology. The effect of specific and non-specific solvent-solute interactions on the UV-vis absorption maxima shifts was evaluated by using the Kamlet-Taft and Catalan solvent parameter sets. Linear free energy relationships (LFERs) have been applied to the UV-vis and C-13 NMR data by using SSP (single substituent parameter) and DSP (dual substituent parameters). Comparative LFER analysis of 10 styrenic series was performed in order to distinguish contribution of structural and electronic substituent effect on extent of p-polarization in a side chain (vinyl) group. Furthermore, the experimental findings were interpreted with the aid of ab initio MP2 and time-dependent density functional (TD-DFT) methods. TD-DFT calculations are performed to quantify the efficiency of intramolecular charge transfer (ICT) allowing us to define the charge-transfer distance (DCT), amount of transferred charge (QCT), and difference of dipole moments between the ground and excited states (mu CT). It was found that both substituents and solvents influence electron density shift, i.e. extent of conjugation, and affect intramolecular charge transfer character in the course of excitation.",
publisher = "Elsevier, Amsterdam",
journal = "Arabian Journal of Chemistry",
title = "Solvent and substituent effect on intramolecular charge transfer in 5-arylidene-3-substituted-2,4-thiazolidinediones: Experimental and theoretical study",
pages = "5161-5142",
number = "8",
volume = "12",
doi = "10.1016/j.arabjc.2016.12.013"
}

Rančić, M., Stojiljković, I., Milošević, M. D., Prlainović, N., Jovanović, M., Milčić, M.,& Marinković, A.. (2019). Solvent and substituent effect on intramolecular charge transfer in 5-arylidene-3-substituted-2,4-thiazolidinediones: Experimental and theoretical study. in Arabian Journal of Chemistry
Elsevier, Amsterdam., 12(8), 5142-5161.
https://doi.org/10.1016/j.arabjc.2016.12.013

Rančić M, Stojiljković I, Milošević MD, Prlainović N, Jovanović M, Milčić M, Marinković A. Solvent and substituent effect on intramolecular charge transfer in 5-arylidene-3-substituted-2,4-thiazolidinediones: Experimental and theoretical study. in Arabian Journal of Chemistry. 2019;12(8):5142-5161.
doi:10.1016/j.arabjc.2016.12.013 .

Rančić, Milica, Stojiljković, Ivana, Milošević, Milena D., Prlainović, Nevena, Jovanović, Maja, Milčić, Miloš, Marinković, Aleksandar, "Solvent and substituent effect on intramolecular charge transfer in 5-arylidene-3-substituted-2,4-thiazolidinediones: Experimental and theoretical study" in Arabian Journal of Chemistry, 12, no. 8 (2019):5142-5161,
https://doi.org/10.1016/j.arabjc.2016.12.013 . .

TY  - JOUR
AU  - Ajaj, Ismail
AU  - Assaleh, Fathi H.
AU  - Markovski, Jasmina
AU  - Rančić, Milica
AU  - Brković, Danijela V
AU  - Milčić, Miloš
AU  - Marinković, Aleksandar
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4130
AB  - The state of the tautomeric equilibria of eleven arylazo pyridone dyes was evaluated from UV-Vis absorption spectra with the aid of the quantum mechanical modeling. NMR analysis and theoretical calculations, by using PCM/omega B97X-D/6-311G(d,p) method, confirmed that prepared compounds exist mainly in Hydrazo form. Internal hydrogen bonding in Hydrazo tautomer, analyzed by AIM topological analysis and total electron density at the bond critical point (BCP), confirmed a presence of strong hydrogen bond which contributes to higher stability of Hydrazo form. Linear solvation energy relationships (LSERs) rationalized solvent influence on solvatochromism of all compounds in Hydrazo form and K-T by using Kamlet-Taft model. Linear free energy relationships (LFERs) were applied to the substituent-inducedNMR chemical shifts (SCS) using SSP (single substituent parameter) and DSP (dual substituent parameter) model. Density plots over the highest occupied (HOMO) and lowest unoccupied molecular orbitals (LUMO) energy surface provide information on the charge transfer during excitation. The molecular electrostatic potential (MEP) surface map was plotted over the optimized geometry of the molecules in order to visualize electron density distribution and explain origin of solvent/solute interactions.
PB  - Elsevier, Amsterdam
T2  - Arabian Journal of Chemistry
T1  - Solvatochromism and azo-hydrazo tautomerism of novel arylazo pyridone dyes: Experimental and quantum chemical study
EP  - 3478
IS  - 8
SP  - 3463
VL  - 12
DO  - 10.1016/j.arabjc.2015.08.029
ER  - 

@article{
author = "Ajaj, Ismail and Assaleh, Fathi H. and Markovski, Jasmina and Rančić, Milica and Brković, Danijela V and Milčić, Miloš and Marinković, Aleksandar",
year = "2019",
abstract = "The state of the tautomeric equilibria of eleven arylazo pyridone dyes was evaluated from UV-Vis absorption spectra with the aid of the quantum mechanical modeling. NMR analysis and theoretical calculations, by using PCM/omega B97X-D/6-311G(d,p) method, confirmed that prepared compounds exist mainly in Hydrazo form. Internal hydrogen bonding in Hydrazo tautomer, analyzed by AIM topological analysis and total electron density at the bond critical point (BCP), confirmed a presence of strong hydrogen bond which contributes to higher stability of Hydrazo form. Linear solvation energy relationships (LSERs) rationalized solvent influence on solvatochromism of all compounds in Hydrazo form and K-T by using Kamlet-Taft model. Linear free energy relationships (LFERs) were applied to the substituent-inducedNMR chemical shifts (SCS) using SSP (single substituent parameter) and DSP (dual substituent parameter) model. Density plots over the highest occupied (HOMO) and lowest unoccupied molecular orbitals (LUMO) energy surface provide information on the charge transfer during excitation. The molecular electrostatic potential (MEP) surface map was plotted over the optimized geometry of the molecules in order to visualize electron density distribution and explain origin of solvent/solute interactions.",
publisher = "Elsevier, Amsterdam",
journal = "Arabian Journal of Chemistry",
title = "Solvatochromism and azo-hydrazo tautomerism of novel arylazo pyridone dyes: Experimental and quantum chemical study",
pages = "3478-3463",
number = "8",
volume = "12",
doi = "10.1016/j.arabjc.2015.08.029"
}

Ajaj, I., Assaleh, F. H., Markovski, J., Rančić, M., Brković, D. V., Milčić, M.,& Marinković, A.. (2019). Solvatochromism and azo-hydrazo tautomerism of novel arylazo pyridone dyes: Experimental and quantum chemical study. in Arabian Journal of Chemistry
Elsevier, Amsterdam., 12(8), 3463-3478.
https://doi.org/10.1016/j.arabjc.2015.08.029

Ajaj I, Assaleh FH, Markovski J, Rančić M, Brković DV, Milčić M, Marinković A. Solvatochromism and azo-hydrazo tautomerism of novel arylazo pyridone dyes: Experimental and quantum chemical study. in Arabian Journal of Chemistry. 2019;12(8):3463-3478.
doi:10.1016/j.arabjc.2015.08.029 .

Ajaj, Ismail, Assaleh, Fathi H., Markovski, Jasmina, Rančić, Milica, Brković, Danijela V, Milčić, Miloš, Marinković, Aleksandar, "Solvatochromism and azo-hydrazo tautomerism of novel arylazo pyridone dyes: Experimental and quantum chemical study" in Arabian Journal of Chemistry, 12, no. 8 (2019):3463-3478,
https://doi.org/10.1016/j.arabjc.2015.08.029 . .

TY  - JOUR
AU  - Suručić, Ljiljana T.
AU  - Janjić, Goran
AU  - Rakić, Aleksandra
AU  - Nastasović, Aleksandra
AU  - Popović, Aleksandar R.
AU  - Milčić, Miloš
AU  - Onjia, Antonije
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4217
AB  - With regard to the harmful effects of heavy metals on human health and the environment, the demand for synthesis and investigation of macromolecules with large capacity of harmful substances sorption is ever greater. Quantum-chemical methods may be applied in structural modeling, prediction, and characterization of such molecules and reactions. Sorption of metal ions (Cu2+, Cd2+, Co2+, and Ni2+) to triethylenetetramine-functionalized copolymer poly(GMA-co-EGDMA)-teta was successfully modeled by quantum chemical calculations, at the B3LYP//6-311++G**/lanl2dz level. Optimized structures of metal complexes were used for calculation of real binding energy of metal ion within the complex (Er). Solvent and hydrolyzation effects were essential for obtaining the objective values. Solvent effect was included in Er by using the total solvation energy for reaction of formation of tetaOH complex (Es1, the first approach) or by using dehydration energy of free metal ion (Es2, the second approach). Experimental results were confirmed in our theoretical analyses (using the second approach).
PB  - Springer, New York
T2  - Journal of Molecular Modeling
T1  - Theoretical modeling of sorption of metal ions on amino-functionalized macroporous copolymer in aqueous solution
IS  - 6
VL  - 25
DO  - 10.1007/s00894-019-4053-0
ER  - 

@article{
author = "Suručić, Ljiljana T. and Janjić, Goran and Rakić, Aleksandra and Nastasović, Aleksandra and Popović, Aleksandar R. and Milčić, Miloš and Onjia, Antonije",
year = "2019",
abstract = "With regard to the harmful effects of heavy metals on human health and the environment, the demand for synthesis and investigation of macromolecules with large capacity of harmful substances sorption is ever greater. Quantum-chemical methods may be applied in structural modeling, prediction, and characterization of such molecules and reactions. Sorption of metal ions (Cu2+, Cd2+, Co2+, and Ni2+) to triethylenetetramine-functionalized copolymer poly(GMA-co-EGDMA)-teta was successfully modeled by quantum chemical calculations, at the B3LYP//6-311++G**/lanl2dz level. Optimized structures of metal complexes were used for calculation of real binding energy of metal ion within the complex (Er). Solvent and hydrolyzation effects were essential for obtaining the objective values. Solvent effect was included in Er by using the total solvation energy for reaction of formation of tetaOH complex (Es1, the first approach) or by using dehydration energy of free metal ion (Es2, the second approach). Experimental results were confirmed in our theoretical analyses (using the second approach).",
publisher = "Springer, New York",
journal = "Journal of Molecular Modeling",
title = "Theoretical modeling of sorption of metal ions on amino-functionalized macroporous copolymer in aqueous solution",
number = "6",
volume = "25",
doi = "10.1007/s00894-019-4053-0"
}

Suručić, L. T., Janjić, G., Rakić, A., Nastasović, A., Popović, A. R., Milčić, M.,& Onjia, A.. (2019). Theoretical modeling of sorption of metal ions on amino-functionalized macroporous copolymer in aqueous solution. in Journal of Molecular Modeling
Springer, New York., 25(6).
https://doi.org/10.1007/s00894-019-4053-0

Suručić LT, Janjić G, Rakić A, Nastasović A, Popović AR, Milčić M, Onjia A. Theoretical modeling of sorption of metal ions on amino-functionalized macroporous copolymer in aqueous solution. in Journal of Molecular Modeling. 2019;25(6).
doi:10.1007/s00894-019-4053-0 .

Suručić, Ljiljana T., Janjić, Goran, Rakić, Aleksandra, Nastasović, Aleksandra, Popović, Aleksandar R., Milčić, Miloš, Onjia, Antonije, "Theoretical modeling of sorption of metal ions on amino-functionalized macroporous copolymer in aqueous solution" in Journal of Molecular Modeling, 25, no. 6 (2019),
https://doi.org/10.1007/s00894-019-4053-0 . .

TY  - JOUR
AU  - Matijević, Borko M.
AU  - Vaštag, Đenđi
AU  - Apostolov, Suzana
AU  - Milčić, Miloš
AU  - Marinković, Aleksandar
AU  - Petrović, Slobodan
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4116
AB  - The UV absorption spectra of twelve N-(substituted phenyl)-2-chloroacetamides were recorded in eighteen solvents. The effect of specific and non-specific solvent-solute interactions on the absorption maxima shifts was evaluated by using the Kamlet-Taft solvent parameter set, i.e. applying linear solvation energy relationships (LSER) principles. Optimized geometries and experimental results were interpreted by using DFT (B3LYP/6-311+G(d,p) method) and time-dependent density functional (TD-DFT) method. Overall electron density in both ground and excited state was obtained by the use of Quantum Theory of Atoms in Molecules, i.e. Bader's analysis. It was found that both solvent and substituents cause appropriate change of the extent of conjugation in the molecules that further affect their intra-molecular charge transfer (ICT) character. Linear free energy relationships (LFERs) were applied to the substituent-induced NMR chemical shifts (SCS) using single substituent parameter (SSP) and dual substituent parameter (DSP) model. Transmission mode of the electronic effects of substituent was discussed according to the results of theoretical calculations and results of LFER correlations. Comparative analysis of presented results with the ones published for structurally similar series of amide which contained cyano group, instead chlorine, provides additional information on the impact of present group to the properties of investigated compound.
PB  - Elsevier, Amsterdam
T2  - Arabian Journal of Chemistry
T1  - N-(substituted phenyl)-2-chloroacetamides: LSER and LFER study
EP  - 3379
IS  - 8
SP  - 3367
VL  - 12
DO  - 10.1016/j.arabjc.2015.09.008
ER  - 

@article{
author = "Matijević, Borko M. and Vaštag, Đenđi and Apostolov, Suzana and Milčić, Miloš and Marinković, Aleksandar and Petrović, Slobodan",
year = "2019",
abstract = "The UV absorption spectra of twelve N-(substituted phenyl)-2-chloroacetamides were recorded in eighteen solvents. The effect of specific and non-specific solvent-solute interactions on the absorption maxima shifts was evaluated by using the Kamlet-Taft solvent parameter set, i.e. applying linear solvation energy relationships (LSER) principles. Optimized geometries and experimental results were interpreted by using DFT (B3LYP/6-311+G(d,p) method) and time-dependent density functional (TD-DFT) method. Overall electron density in both ground and excited state was obtained by the use of Quantum Theory of Atoms in Molecules, i.e. Bader's analysis. It was found that both solvent and substituents cause appropriate change of the extent of conjugation in the molecules that further affect their intra-molecular charge transfer (ICT) character. Linear free energy relationships (LFERs) were applied to the substituent-induced NMR chemical shifts (SCS) using single substituent parameter (SSP) and dual substituent parameter (DSP) model. Transmission mode of the electronic effects of substituent was discussed according to the results of theoretical calculations and results of LFER correlations. Comparative analysis of presented results with the ones published for structurally similar series of amide which contained cyano group, instead chlorine, provides additional information on the impact of present group to the properties of investigated compound.",
publisher = "Elsevier, Amsterdam",
journal = "Arabian Journal of Chemistry",
title = "N-(substituted phenyl)-2-chloroacetamides: LSER and LFER study",
pages = "3379-3367",
number = "8",
volume = "12",
doi = "10.1016/j.arabjc.2015.09.008"
}

Matijević, B. M., Vaštag, Đ., Apostolov, S., Milčić, M., Marinković, A.,& Petrović, S.. (2019). N-(substituted phenyl)-2-chloroacetamides: LSER and LFER study. in Arabian Journal of Chemistry
Elsevier, Amsterdam., 12(8), 3367-3379.
https://doi.org/10.1016/j.arabjc.2015.09.008

Matijević BM, Vaštag Đ, Apostolov S, Milčić M, Marinković A, Petrović S. N-(substituted phenyl)-2-chloroacetamides: LSER and LFER study. in Arabian Journal of Chemistry. 2019;12(8):3367-3379.
doi:10.1016/j.arabjc.2015.09.008 .

Matijević, Borko M., Vaštag, Đenđi, Apostolov, Suzana, Milčić, Miloš, Marinković, Aleksandar, Petrović, Slobodan, "N-(substituted phenyl)-2-chloroacetamides: LSER and LFER study" in Arabian Journal of Chemistry, 12, no. 8 (2019):3367-3379,
https://doi.org/10.1016/j.arabjc.2015.09.008 . .

TY  - JOUR
AU  - Milošević, Milena D.
AU  - Prlainović, Nevena
AU  - Milčić, Miloš
AU  - Nikolić, Vesna
AU  - Božić, Aleksandra R.
AU  - Bigović, Miljan
AU  - Marinković, Aleksandar
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3843
AB  - 15 symmetric 1-methyl-2,6-bis[2-(substituted phenyl)ethenyl]pyridinium iodides were synthesized in this work. Their structures were characterized using IR, H-1 and C-13 NMR, and UV-Vis spectroscopy. DFT calculations indicated that s-trans/s-trans conformation prevail in all compounds. The effects of specific and non-specific solvent-solute interactions on the UV-Vis absorption maxima shifts were evaluated using linear solvation-free energy relationships (LSER), i.e., Kamlet-Taft and Catalan models. A linear free energy relationship (LFER) in the form of single substituent parameter equations (SSP) was used to postulate quantitative structure-property relations of substituent effect on NMR data. TD-DFT results showed dependence of electronic transition on the substituent effects. The push-pull character of these compounds was analyzed by differences in C-13 chemical shift of the ethylenic double bond in 2- and 6-positions of cross-conjugated with pyridinum central ring. Also, the quotient of the occupations for the bonding pi and anti-bonding pi* orbitals of this bond was considered. Good correlations of the selected parameter between double bond lengths with pi*/pi and C-13 chemical shift differences of the bridging group proved them to be adequate descriptor of push-pull character. Synthesized compounds were screened for the antioxidant activity, using 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical methods, and results demonstrated moderate antioxidant potential.
PB  - Springer, New York
T2  - Journal of the Iranian Chemical Society
T1  - Solvent, structural, quantum chemical study and antioxidative activity of symmetrical 1-methyl-2,6-bis[2-(substituted phenyl)ethenyl]pyridinium iodides
EP  - 2501
IS  - 11
SP  - 2483
VL  - 15
DO  - 10.1007/s13738-018-1437-5
ER  - 

@article{
author = "Milošević, Milena D. and Prlainović, Nevena and Milčić, Miloš and Nikolić, Vesna and Božić, Aleksandra R. and Bigović, Miljan and Marinković, Aleksandar",
year = "2018",
abstract = "15 symmetric 1-methyl-2,6-bis[2-(substituted phenyl)ethenyl]pyridinium iodides were synthesized in this work. Their structures were characterized using IR, H-1 and C-13 NMR, and UV-Vis spectroscopy. DFT calculations indicated that s-trans/s-trans conformation prevail in all compounds. The effects of specific and non-specific solvent-solute interactions on the UV-Vis absorption maxima shifts were evaluated using linear solvation-free energy relationships (LSER), i.e., Kamlet-Taft and Catalan models. A linear free energy relationship (LFER) in the form of single substituent parameter equations (SSP) was used to postulate quantitative structure-property relations of substituent effect on NMR data. TD-DFT results showed dependence of electronic transition on the substituent effects. The push-pull character of these compounds was analyzed by differences in C-13 chemical shift of the ethylenic double bond in 2- and 6-positions of cross-conjugated with pyridinum central ring. Also, the quotient of the occupations for the bonding pi and anti-bonding pi* orbitals of this bond was considered. Good correlations of the selected parameter between double bond lengths with pi*/pi and C-13 chemical shift differences of the bridging group proved them to be adequate descriptor of push-pull character. Synthesized compounds were screened for the antioxidant activity, using 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical methods, and results demonstrated moderate antioxidant potential.",
publisher = "Springer, New York",
journal = "Journal of the Iranian Chemical Society",
title = "Solvent, structural, quantum chemical study and antioxidative activity of symmetrical 1-methyl-2,6-bis[2-(substituted phenyl)ethenyl]pyridinium iodides",
pages = "2501-2483",
number = "11",
volume = "15",
doi = "10.1007/s13738-018-1437-5"
}

Milošević, M. D., Prlainović, N., Milčić, M., Nikolić, V., Božić, A. R., Bigović, M.,& Marinković, A.. (2018). Solvent, structural, quantum chemical study and antioxidative activity of symmetrical 1-methyl-2,6-bis[2-(substituted phenyl)ethenyl]pyridinium iodides. in Journal of the Iranian Chemical Society
Springer, New York., 15(11), 2483-2501.
https://doi.org/10.1007/s13738-018-1437-5

Milošević MD, Prlainović N, Milčić M, Nikolić V, Božić AR, Bigović M, Marinković A. Solvent, structural, quantum chemical study and antioxidative activity of symmetrical 1-methyl-2,6-bis[2-(substituted phenyl)ethenyl]pyridinium iodides. in Journal of the Iranian Chemical Society. 2018;15(11):2483-2501.
doi:10.1007/s13738-018-1437-5 .

Milošević, Milena D., Prlainović, Nevena, Milčić, Miloš, Nikolić, Vesna, Božić, Aleksandra R., Bigović, Miljan, Marinković, Aleksandar, "Solvent, structural, quantum chemical study and antioxidative activity of symmetrical 1-methyl-2,6-bis[2-(substituted phenyl)ethenyl]pyridinium iodides" in Journal of the Iranian Chemical Society, 15, no. 11 (2018):2483-2501,
https://doi.org/10.1007/s13738-018-1437-5 . .

TY  - JOUR
AU  - Brkić, Dominik R.
AU  - Božić, Aleksandra R.
AU  - Marinković, Aleksandar
AU  - Milčić, Miloš
AU  - Prlainović, Nevena
AU  - Assaleh, Fathi H.
AU  - Cvijetić, Ilija
AU  - Nikolić, Jasmina
AU  - Drmanić, Saša
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3971
AB  - The ratios of E/Z isomers of sixteen synthesized 1,3-dihydro-3-(substituted phenylimino)-2H-indol-2-one were studied using experimental and theoretical methodology. Linear solvation energy relationships (LSER) rationalized solvent influence of the solvent-solute interactions on the UV-Vis absorption maxima shifts (v(max)) of both geometrical isomers using the Kamlet-Taft equation. Linear free energy relationships (LEER) in the form of single substituent parameter equation (SSP) was used to analyze substituent effect on pK(a), NMR chemical shifts and v(max) values. Electron charge density was obtained by the use of Quantum Theory of Atoms in Molecules, i.e. Bader's analysis. The substituent and solvent effect on intramolecular charge transfer (ICT) were interpreted with the aid of time-dependent density functional (TD-DFT) method. Additionally, the results of TD-DFT calculations quantified the efficiency of ICT from the calculated charge-transfer distance (D-CT) and amount of transferred charge (Q(CT)). The antimicrobial activity was evaluated using broth microdilution method. 3D QSAR modeling was used to demonstrate the influence of substituents effect as well as molecule geometry on antimicrobial activity.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy
T1  - Detailed solvent, structural, quantum chemical study and antimicrobial activity of isatin Schiff base
EP  - 30
SP  - 16
VL  - 196
DO  - 10.1016/j.saa.2018.01.080
ER  - 

@article{
author = "Brkić, Dominik R. and Božić, Aleksandra R. and Marinković, Aleksandar and Milčić, Miloš and Prlainović, Nevena and Assaleh, Fathi H. and Cvijetić, Ilija and Nikolić, Jasmina and Drmanić, Saša",
year = "2018",
abstract = "The ratios of E/Z isomers of sixteen synthesized 1,3-dihydro-3-(substituted phenylimino)-2H-indol-2-one were studied using experimental and theoretical methodology. Linear solvation energy relationships (LSER) rationalized solvent influence of the solvent-solute interactions on the UV-Vis absorption maxima shifts (v(max)) of both geometrical isomers using the Kamlet-Taft equation. Linear free energy relationships (LEER) in the form of single substituent parameter equation (SSP) was used to analyze substituent effect on pK(a), NMR chemical shifts and v(max) values. Electron charge density was obtained by the use of Quantum Theory of Atoms in Molecules, i.e. Bader's analysis. The substituent and solvent effect on intramolecular charge transfer (ICT) were interpreted with the aid of time-dependent density functional (TD-DFT) method. Additionally, the results of TD-DFT calculations quantified the efficiency of ICT from the calculated charge-transfer distance (D-CT) and amount of transferred charge (Q(CT)). The antimicrobial activity was evaluated using broth microdilution method. 3D QSAR modeling was used to demonstrate the influence of substituents effect as well as molecule geometry on antimicrobial activity.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy",
title = "Detailed solvent, structural, quantum chemical study and antimicrobial activity of isatin Schiff base",
pages = "30-16",
volume = "196",
doi = "10.1016/j.saa.2018.01.080"
}

Brkić, D. R., Božić, A. R., Marinković, A., Milčić, M., Prlainović, N., Assaleh, F. H., Cvijetić, I., Nikolić, J.,& Drmanić, S.. (2018). Detailed solvent, structural, quantum chemical study and antimicrobial activity of isatin Schiff base. in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy
Pergamon-Elsevier Science Ltd, Oxford., 196, 16-30.
https://doi.org/10.1016/j.saa.2018.01.080

Brkić DR, Božić AR, Marinković A, Milčić M, Prlainović N, Assaleh FH, Cvijetić I, Nikolić J, Drmanić S. Detailed solvent, structural, quantum chemical study and antimicrobial activity of isatin Schiff base. in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy. 2018;196:16-30.
doi:10.1016/j.saa.2018.01.080 .

Brkić, Dominik R., Božić, Aleksandra R., Marinković, Aleksandar, Milčić, Miloš, Prlainović, Nevena, Assaleh, Fathi H., Cvijetić, Ilija, Nikolić, Jasmina, Drmanić, Saša, "Detailed solvent, structural, quantum chemical study and antimicrobial activity of isatin Schiff base" in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 196 (2018):16-30,
https://doi.org/10.1016/j.saa.2018.01.080 . .

TY  - JOUR
AU  - Ajaj, Ismail
AU  - Markovski, Jasmina
AU  - Rančić, Milica
AU  - Mijin, Dušan
AU  - Milčić, Miloš
AU  - Jovanović, Maja
AU  - Marinković, Aleksandar
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3143
AB  - The state of the tautomeric equilibria of 2(6)-hydroxy-4-methyl-6(2)-oxo-1-(substituted phenyl)-1,2(1,6)-dihydropyridine-3-carbonitriles, 2-PY/6-PY, was evaluated using experimental and theoretical methodology. The experimental data were interpreted with the aid of time-dependent density functional (TD-DFT) method. Electron charge density was obtained by the use of Quantum Theory of Atoms in Molecules, i.e. Bader's analysis. Linear solvation energy relationships (LSER) rationalized solvent influence on tautomeric equilibrium. Linear free energy relationships (LFERs) were applied to the substituent-induced NMR chemical shifts (SCS) using SSP (single substituent parameter) and DSP (dual substituent parameter) model. Theoretical calculations and obtained correlations gave insight into the influence of molecular conformation on the transmission of substituent electronic effects, as well as on different solvent solute interactions, and the state of tautomeric equilibrium.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy
T1  - Solvent and structural effects in tautomeric 2(6)-hydroxy-4-methyl-6(2)-oxo-1-(substituted phenyl)-1,2(1,6)-dihydropyridine-3-carbonitriles: UV, NMR and quantum chemical study
EP  - 585
SP  - 575
VL  - 150
DO  - 10.1016/j.saa.2015.05.055
ER  - 

@article{
author = "Ajaj, Ismail and Markovski, Jasmina and Rančić, Milica and Mijin, Dušan and Milčić, Miloš and Jovanović, Maja and Marinković, Aleksandar",
year = "2015",
abstract = "The state of the tautomeric equilibria of 2(6)-hydroxy-4-methyl-6(2)-oxo-1-(substituted phenyl)-1,2(1,6)-dihydropyridine-3-carbonitriles, 2-PY/6-PY, was evaluated using experimental and theoretical methodology. The experimental data were interpreted with the aid of time-dependent density functional (TD-DFT) method. Electron charge density was obtained by the use of Quantum Theory of Atoms in Molecules, i.e. Bader's analysis. Linear solvation energy relationships (LSER) rationalized solvent influence on tautomeric equilibrium. Linear free energy relationships (LFERs) were applied to the substituent-induced NMR chemical shifts (SCS) using SSP (single substituent parameter) and DSP (dual substituent parameter) model. Theoretical calculations and obtained correlations gave insight into the influence of molecular conformation on the transmission of substituent electronic effects, as well as on different solvent solute interactions, and the state of tautomeric equilibrium.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy",
title = "Solvent and structural effects in tautomeric 2(6)-hydroxy-4-methyl-6(2)-oxo-1-(substituted phenyl)-1,2(1,6)-dihydropyridine-3-carbonitriles: UV, NMR and quantum chemical study",
pages = "585-575",
volume = "150",
doi = "10.1016/j.saa.2015.05.055"
}

Ajaj, I., Markovski, J., Rančić, M., Mijin, D., Milčić, M., Jovanović, M.,& Marinković, A.. (2015). Solvent and structural effects in tautomeric 2(6)-hydroxy-4-methyl-6(2)-oxo-1-(substituted phenyl)-1,2(1,6)-dihydropyridine-3-carbonitriles: UV, NMR and quantum chemical study. in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy
Pergamon-Elsevier Science Ltd, Oxford., 150, 575-585.
https://doi.org/10.1016/j.saa.2015.05.055

Ajaj I, Markovski J, Rančić M, Mijin D, Milčić M, Jovanović M, Marinković A. Solvent and structural effects in tautomeric 2(6)-hydroxy-4-methyl-6(2)-oxo-1-(substituted phenyl)-1,2(1,6)-dihydropyridine-3-carbonitriles: UV, NMR and quantum chemical study. in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy. 2015;150:575-585.
doi:10.1016/j.saa.2015.05.055 .

Ajaj, Ismail, Markovski, Jasmina, Rančić, Milica, Mijin, Dušan, Milčić, Miloš, Jovanović, Maja, Marinković, Aleksandar, "Solvent and structural effects in tautomeric 2(6)-hydroxy-4-methyl-6(2)-oxo-1-(substituted phenyl)-1,2(1,6)-dihydropyridine-3-carbonitriles: UV, NMR and quantum chemical study" in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 150 (2015):575-585,
https://doi.org/10.1016/j.saa.2015.05.055 . .

TY  - JOUR
AU  - Marković, J. M.
AU  - Trišović, Nemanja
AU  - Toth-Katona, Tibor
AU  - Milčić, Miloš
AU  - Marinković, Aleksandar
AU  - Zhang, C.
AU  - Jakli, Antal
AU  - Fodor-Csorba, Katalin
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2809
AB  - Three series of bent-core mesogens having pyridine as the central unit have been synthesized and characterized. A series of 2,6-diaminopyridine derivatives capable of forming inter- and intramolecular hydrogen bonds exhibit very high melting points. A decrease in the polarity of the central part of the bent-core obtained by replacing the amide with ester linkages results in derivatives with lower melting points and formation of B2- and B7-like mesophases. The introduction of the olefinic groups, which connect the pyridine ring with the inner aromatic rings, helps to further lower the polarity of the central part in the five ring system and led to the formation of B1 and B7 phases. The phases have been determined by optical microscopy observations and differential scanning calorimetry (DSC) and confirmed by X-ray studies. The bending angles and polarity of the investigated five-ring systems have been calculated by the density functional theory (DFT) method.
PB  - Royal Soc Chemistry, Cambridge
T2  - New Journal of Chemistry
T1  - A structure-property relationship study of bent-core mesogens with pyridine as the central unit
EP  - 1760
IS  - 4
SP  - 1751
VL  - 38
DO  - 10.1039/c3nj01430d
ER  - 

@article{
author = "Marković, J. M. and Trišović, Nemanja and Toth-Katona, Tibor and Milčić, Miloš and Marinković, Aleksandar and Zhang, C. and Jakli, Antal and Fodor-Csorba, Katalin",
year = "2014",
abstract = "Three series of bent-core mesogens having pyridine as the central unit have been synthesized and characterized. A series of 2,6-diaminopyridine derivatives capable of forming inter- and intramolecular hydrogen bonds exhibit very high melting points. A decrease in the polarity of the central part of the bent-core obtained by replacing the amide with ester linkages results in derivatives with lower melting points and formation of B2- and B7-like mesophases. The introduction of the olefinic groups, which connect the pyridine ring with the inner aromatic rings, helps to further lower the polarity of the central part in the five ring system and led to the formation of B1 and B7 phases. The phases have been determined by optical microscopy observations and differential scanning calorimetry (DSC) and confirmed by X-ray studies. The bending angles and polarity of the investigated five-ring systems have been calculated by the density functional theory (DFT) method.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "New Journal of Chemistry",
title = "A structure-property relationship study of bent-core mesogens with pyridine as the central unit",
pages = "1760-1751",
number = "4",
volume = "38",
doi = "10.1039/c3nj01430d"
}

Marković, J. M., Trišović, N., Toth-Katona, T., Milčić, M., Marinković, A., Zhang, C., Jakli, A.,& Fodor-Csorba, K.. (2014). A structure-property relationship study of bent-core mesogens with pyridine as the central unit. in New Journal of Chemistry
Royal Soc Chemistry, Cambridge., 38(4), 1751-1760.
https://doi.org/10.1039/c3nj01430d

Marković JM, Trišović N, Toth-Katona T, Milčić M, Marinković A, Zhang C, Jakli A, Fodor-Csorba K. A structure-property relationship study of bent-core mesogens with pyridine as the central unit. in New Journal of Chemistry. 2014;38(4):1751-1760.
doi:10.1039/c3nj01430d .

Marković, J. M., Trišović, Nemanja, Toth-Katona, Tibor, Milčić, Miloš, Marinković, Aleksandar, Zhang, C., Jakli, Antal, Fodor-Csorba, Katalin, "A structure-property relationship study of bent-core mesogens with pyridine as the central unit" in New Journal of Chemistry, 38, no. 4 (2014):1751-1760,
https://doi.org/10.1039/c3nj01430d . .

TY  - JOUR
AU  - Ajaj, Ismail
AU  - Markovski, Jasmina
AU  - Marković, Jelena
AU  - Jovanović, Maja
AU  - Milčić, Miloš
AU  - Assaleh, Fathi H.
AU  - Marinković, Aleksandar
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2790
AB  - The tautomeric equilibria between 2-pyridone and 2-hydroxypyridine forms of methoxy, chloro, and nitro derivatives of 3-cyano-4-(2-, 3-, and 4-substituted phenyl)-6-phenyl-2(1H)-pyridones were evaluated from UV/Vis spectral data. Linear solvation energy relationships of Kamlet-Taft and Catalan-rationalized solvent have influence on tautomeric equilibria. Transmission of substituent effect was analyzed by the Hammett equation. Quantum chemical calculations were performed by density functional theory (B3LYP). The experimental data were interpreted with the aid of time-dependent density functional method. Electron density distribution was analyzed by Bader's analysis. It was found that substituents of different electronic properties change the extent of conjugation, and affect intramolecular charge transfer character. Theoretical calculations and experimental results gave insight into the influence of the molecular conformation on the transmission of substituent effects, as well as on contribution of different solvent-solute interactions.
PB  - Springer/Plenum Publishers, New York
T2  - Structural Chemistry
T1  - Solvent and structural effects in tautomeric 3-cyano-4-(substituted phenyl)-6-phenyl-2(1H)-pyridones: experimental and quantum chemical study
EP  - 1270
IS  - 4
SP  - 1257
VL  - 25
DO  - 10.1007/s11224-014-0401-y
ER  - 

@article{
author = "Ajaj, Ismail and Markovski, Jasmina and Marković, Jelena and Jovanović, Maja and Milčić, Miloš and Assaleh, Fathi H. and Marinković, Aleksandar",
year = "2014",
abstract = "The tautomeric equilibria between 2-pyridone and 2-hydroxypyridine forms of methoxy, chloro, and nitro derivatives of 3-cyano-4-(2-, 3-, and 4-substituted phenyl)-6-phenyl-2(1H)-pyridones were evaluated from UV/Vis spectral data. Linear solvation energy relationships of Kamlet-Taft and Catalan-rationalized solvent have influence on tautomeric equilibria. Transmission of substituent effect was analyzed by the Hammett equation. Quantum chemical calculations were performed by density functional theory (B3LYP). The experimental data were interpreted with the aid of time-dependent density functional method. Electron density distribution was analyzed by Bader's analysis. It was found that substituents of different electronic properties change the extent of conjugation, and affect intramolecular charge transfer character. Theoretical calculations and experimental results gave insight into the influence of the molecular conformation on the transmission of substituent effects, as well as on contribution of different solvent-solute interactions.",
publisher = "Springer/Plenum Publishers, New York",
journal = "Structural Chemistry",
title = "Solvent and structural effects in tautomeric 3-cyano-4-(substituted phenyl)-6-phenyl-2(1H)-pyridones: experimental and quantum chemical study",
pages = "1270-1257",
number = "4",
volume = "25",
doi = "10.1007/s11224-014-0401-y"
}

Ajaj, I., Markovski, J., Marković, J., Jovanović, M., Milčić, M., Assaleh, F. H.,& Marinković, A.. (2014). Solvent and structural effects in tautomeric 3-cyano-4-(substituted phenyl)-6-phenyl-2(1H)-pyridones: experimental and quantum chemical study. in Structural Chemistry
Springer/Plenum Publishers, New York., 25(4), 1257-1270.
https://doi.org/10.1007/s11224-014-0401-y

Ajaj I, Markovski J, Marković J, Jovanović M, Milčić M, Assaleh FH, Marinković A. Solvent and structural effects in tautomeric 3-cyano-4-(substituted phenyl)-6-phenyl-2(1H)-pyridones: experimental and quantum chemical study. in Structural Chemistry. 2014;25(4):1257-1270.
doi:10.1007/s11224-014-0401-y .

Ajaj, Ismail, Markovski, Jasmina, Marković, Jelena, Jovanović, Maja, Milčić, Miloš, Assaleh, Fathi H., Marinković, Aleksandar, "Solvent and structural effects in tautomeric 3-cyano-4-(substituted phenyl)-6-phenyl-2(1H)-pyridones: experimental and quantum chemical study" in Structural Chemistry, 25, no. 4 (2014):1257-1270,
https://doi.org/10.1007/s11224-014-0401-y . .

TY  - JOUR
AU  - Matijević, Borko M.
AU  - Vaštag, Đenđi
AU  - Perišić-Janjić, Nada
AU  - Apostolov, Suzana
AU  - Milčić, Miloš
AU  - Zivanović, Lidija
AU  - Marinković, Aleksandar
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2754
AB  - UV absorption spectra of N-(substituted phenyl)-2-cyanoacetamides have been recorded in the range 200-400 nm in the set of selected solvents. The solute-solvent interactions were analyzed on the basis of linear solvation energy relationships (LSER) concept proposed by Kamlet and Taft. The effects of substituents on the absorption spectra were interpreted by correlation of absorption frequencies with Hammett substituent constant, sigma. It was found that substituents significantly change the extent of conjugation. Furthermore, the experimental findings were interpreted with the aid of ab initio B3LYP/6-311G(d,p) method. Electronic energies was calculated by the use of 6-311++G(3df,3pd) methods with standard polarized continuum model (PCM) for inclusion of the solvent effect.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy
T1  - Solvent and structural effects on the UV absorption spectra of N-(substituted phenyl)-2-cyanoacetamides
EP  - 575
SP  - 568
VL  - 117
DO  - 10.1016/j.saa.2013.08.040
ER  - 

@article{
author = "Matijević, Borko M. and Vaštag, Đenđi and Perišić-Janjić, Nada and Apostolov, Suzana and Milčić, Miloš and Zivanović, Lidija and Marinković, Aleksandar",
year = "2014",
abstract = "UV absorption spectra of N-(substituted phenyl)-2-cyanoacetamides have been recorded in the range 200-400 nm in the set of selected solvents. The solute-solvent interactions were analyzed on the basis of linear solvation energy relationships (LSER) concept proposed by Kamlet and Taft. The effects of substituents on the absorption spectra were interpreted by correlation of absorption frequencies with Hammett substituent constant, sigma. It was found that substituents significantly change the extent of conjugation. Furthermore, the experimental findings were interpreted with the aid of ab initio B3LYP/6-311G(d,p) method. Electronic energies was calculated by the use of 6-311++G(3df,3pd) methods with standard polarized continuum model (PCM) for inclusion of the solvent effect.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy",
title = "Solvent and structural effects on the UV absorption spectra of N-(substituted phenyl)-2-cyanoacetamides",
pages = "575-568",
volume = "117",
doi = "10.1016/j.saa.2013.08.040"
}

Matijević, B. M., Vaštag, Đ., Perišić-Janjić, N., Apostolov, S., Milčić, M., Zivanović, L.,& Marinković, A.. (2014). Solvent and structural effects on the UV absorption spectra of N-(substituted phenyl)-2-cyanoacetamides. in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy
Pergamon-Elsevier Science Ltd, Oxford., 117, 568-575.
https://doi.org/10.1016/j.saa.2013.08.040

Matijević BM, Vaštag Đ, Perišić-Janjić N, Apostolov S, Milčić M, Zivanović L, Marinković A. Solvent and structural effects on the UV absorption spectra of N-(substituted phenyl)-2-cyanoacetamides. in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy. 2014;117:568-575.
doi:10.1016/j.saa.2013.08.040 .

Matijević, Borko M., Vaštag, Đenđi, Perišić-Janjić, Nada, Apostolov, Suzana, Milčić, Miloš, Zivanović, Lidija, Marinković, Aleksandar, "Solvent and structural effects on the UV absorption spectra of N-(substituted phenyl)-2-cyanoacetamides" in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 117 (2014):568-575,
https://doi.org/10.1016/j.saa.2013.08.040 . .

TY  - JOUR
AU  - Rančić, Milica
AU  - Trišović, Nemanja
AU  - Milčić, Miloš
AU  - Jovanović, Maja
AU  - Jovanović, Bratislav Ž.
AU  - Marinković, Aleksandar
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2732
AB  - Two series of 4-substituted N-[1-(pyridine-3- and -4-yl)ethylidene]anilines have been synthesized using different methods of conventional and microwave-assisted synthesis, and linear free-energy relationships have been applied to the C-13 NMR chemical shifts of the carbon atoms of interest. The substituent-induced chemical shifts have been analyzed using single substituent parameter and dual substituent parameter methods. The presented correlations describe satisfactorily the field and resonance substituent effects having similar contributions for C1 and the azomethine carbon, with exception of the carbon atom in para position to the substituent X. In both series, negative values have been found for C1 atom (reverse substituent effect). Quantum chemical calculations of the optimized geometries at MP2/6-31G++(d,p) level, together with C-13 NMR chemical shifts, give a better insight into the influence of the molecular conformation on the transmission of electronic substituent effects. The comparison of correlation results for different series of imines with phenyl, 4-nitrophenyl, 2-pyridyl, 3-pyridyl, 4-pyridyl group attached at the azomethine carbon with the results for 4-substituted N-[1-(pyridine-3- and -4-yl)ethylidene]anilines for the same substituent set (X) indicates that a combination of the influences of electronic effects of the substituent X and the (1)-unit can be described as a sensitive balance of different resonance structures.
PB  - Wiley-Blackwell, Hoboken
T2  - Journal of Heterocyclic Chemistry
T1  - Linear Free-Energy Relationships Applied to the C-13 NMR Chemical Shifts in 4-Substituted N-[1-(Pyridine-3-and-4-yl)ethylidene]anilines
EP  - 1451
IS  - 5
SP  - 1442
VL  - 51
DO  - 10.1002/jhet.1752
ER  - 

@article{
author = "Rančić, Milica and Trišović, Nemanja and Milčić, Miloš and Jovanović, Maja and Jovanović, Bratislav Ž. and Marinković, Aleksandar",
year = "2014",
abstract = "Two series of 4-substituted N-[1-(pyridine-3- and -4-yl)ethylidene]anilines have been synthesized using different methods of conventional and microwave-assisted synthesis, and linear free-energy relationships have been applied to the C-13 NMR chemical shifts of the carbon atoms of interest. The substituent-induced chemical shifts have been analyzed using single substituent parameter and dual substituent parameter methods. The presented correlations describe satisfactorily the field and resonance substituent effects having similar contributions for C1 and the azomethine carbon, with exception of the carbon atom in para position to the substituent X. In both series, negative values have been found for C1 atom (reverse substituent effect). Quantum chemical calculations of the optimized geometries at MP2/6-31G++(d,p) level, together with C-13 NMR chemical shifts, give a better insight into the influence of the molecular conformation on the transmission of electronic substituent effects. The comparison of correlation results for different series of imines with phenyl, 4-nitrophenyl, 2-pyridyl, 3-pyridyl, 4-pyridyl group attached at the azomethine carbon with the results for 4-substituted N-[1-(pyridine-3- and -4-yl)ethylidene]anilines for the same substituent set (X) indicates that a combination of the influences of electronic effects of the substituent X and the (1)-unit can be described as a sensitive balance of different resonance structures.",
publisher = "Wiley-Blackwell, Hoboken",
journal = "Journal of Heterocyclic Chemistry",
title = "Linear Free-Energy Relationships Applied to the C-13 NMR Chemical Shifts in 4-Substituted N-[1-(Pyridine-3-and-4-yl)ethylidene]anilines",
pages = "1451-1442",
number = "5",
volume = "51",
doi = "10.1002/jhet.1752"
}

Rančić, M., Trišović, N., Milčić, M., Jovanović, M., Jovanović, B. Ž.,& Marinković, A.. (2014). Linear Free-Energy Relationships Applied to the C-13 NMR Chemical Shifts in 4-Substituted N-[1-(Pyridine-3-and-4-yl)ethylidene]anilines. in Journal of Heterocyclic Chemistry
Wiley-Blackwell, Hoboken., 51(5), 1442-1451.
https://doi.org/10.1002/jhet.1752

Rančić M, Trišović N, Milčić M, Jovanović M, Jovanović BŽ, Marinković A. Linear Free-Energy Relationships Applied to the C-13 NMR Chemical Shifts in 4-Substituted N-[1-(Pyridine-3-and-4-yl)ethylidene]anilines. in Journal of Heterocyclic Chemistry. 2014;51(5):1442-1451.
doi:10.1002/jhet.1752 .

Rančić, Milica, Trišović, Nemanja, Milčić, Miloš, Jovanović, Maja, Jovanović, Bratislav Ž., Marinković, Aleksandar, "Linear Free-Energy Relationships Applied to the C-13 NMR Chemical Shifts in 4-Substituted N-[1-(Pyridine-3-and-4-yl)ethylidene]anilines" in Journal of Heterocyclic Chemistry, 51, no. 5 (2014):1442-1451,
https://doi.org/10.1002/jhet.1752 . .

TY  - JOUR
AU  - Marinković, Aleksandar
AU  - Brkić, Dominik R.
AU  - Martinović, Jelena S.
AU  - Mijin, Dušan
AU  - Milčić, Miloš
AU  - Petrović, Slobodan
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2339
AB  - Linear free energy relationships (LFER) were applied to the IR, 1H- and 13C- -NMR spectral data of N-(substituted phenyl)-2-cyanoacetamides. A variety of substituents were employed for phenyl substitution and fairly good correlations were obtained using the simple Hammett and the Hammett-Taft dual substituent parameter equations. The correlation results of the substituent induced 13C-NMR chemical shifts (SCS) of the C1, C=O and N-H atom indicated different sensitivity with respect to electronic substituent effects. A better correlation of the SCSc=o with a combination of electrophilic and nucleophilic substituent constants indicated a significant contribution of extended resonance interaction (∏-delocalization) within the ∏1-unit. The conformations of the inves­tigated compounds were studied using the DFT B3LYP/6-311G**method and, together with the results of 13C-NMR and IR spectroscopic studies, a better insight into the influence of such a structure on the transmission of electronic substituent effects was obtained.
AB  - Principi linearnih korelacija slobodnih energija (LFER) su primenjeni na IR, 1H- i 13C-NMR spektralne podatke N-(supstituisanih fenil)-2-cijanoacetamida. Pri sintezi N-(supstituisanih fenil)-2-cijanoacetamida izvršen je zadovoljavajući izbor supstituenata u pogledu elektronskih svojstava kako bi se adekvatno sagledao uticaj elektronskih efekata supstituenata na pomeranja u IR, 1H- i 13C-NMR spektralnim podacima. Primenom proste Hametove jednačine dobijene su zadovoljavajuće korelacije. Na osnovu korelacionih rezultata uočen je primaran uticaj elektronskih efekata na SCS (supstituentom indukovana hemijska pomeranja) vrednosti N-H vodonika, C1 i C=O ugljenika ispitivanih jedinjenja. Korelacioni rezultati za C=O ugljenik se značajno popravljaju ako se koristi kombinacija Ϭ+ i Ϭ- konstanti supstituenata, takozvane elektrofilne i nukleofilne konstante supstituenata, što ukazuje na postojanje značajne proširene rezonancione interakcije supstituenata i elektronske gustine karbonilne grupe. Vrednosti konstanti proporcionalnosti pF i pR za sve atome, ukazuju na približno isti doprinos efekta polja i rezonancionog efekta supstituenata. Efekat polja je nešto izraženji na N-H vodoniku, i za sve atome pokazuje značajne razlike u odnosu na njihov položaj u molekulskoj strukturi ispitivanih jedinjenja. Uticaj efekata supstituenata na IR vibracije istezanja N-H (simetrične i antisimetrične), C=O i CN veze je prevashodno elektronske prirode što se može zaključiti na osnovu dobrih korelacija dobijenih primenom Hametove jednačine i Ϭ parametara supstituenata. Osim toga izvršena je optimizacija geometrije ispitivanih jedinjenja primenom DFT B3LYP/ 6-311G**metode, pri čemu je nađeno da je trans-izomer nešto stabilnji, izuzev u slučaju jedinjenja 3. Supstituisana fenil-grupa i amidna grupa, kod trans-izomera, su približno koplanarne, dok se kod cis- izomera uočava značajna devijacija koja je značajno određena elektronskim efektima prisutnog supstituenta. Takođe je ispitivan položaj cis/trans ravnoteže u ugjen-tetrahloridu, i na osnovu rezultata FT/R analize, kada je prisutan H, CH3, OCH3, Br, i COOH supstituent, nađeno je da je cis izomer u velikom višku, a za ostala jedinjenja utvrđeno je postojanje ravnoteže cis- i trans-izomera.
PB  - Association of the Chemical Engineers of Serbia
T2  - Chemical Industry & Chemical Engineering Quarterly
T1  - Substituent effect on IR, 1H- and 13C-NMR spectral data in N-substituted phenyl)-2-cyanoacetamides: A correlation study
T1  - Uticaj supstituenata na IR, 1H- i 13C-NMR spektralne podatke N-(supstituisanih fenil)-2-cijanoacetamida - korelaciona analiza
EP  - 78
IS  - 1
SP  - 67
VL  - 19
DO  - 10.2298/CICEQ120109044M
ER  - 

@article{
author = "Marinković, Aleksandar and Brkić, Dominik R. and Martinović, Jelena S. and Mijin, Dušan and Milčić, Miloš and Petrović, Slobodan",
year = "2013",
abstract = "Linear free energy relationships (LFER) were applied to the IR, 1H- and 13C- -NMR spectral data of N-(substituted phenyl)-2-cyanoacetamides. A variety of substituents were employed for phenyl substitution and fairly good correlations were obtained using the simple Hammett and the Hammett-Taft dual substituent parameter equations. The correlation results of the substituent induced 13C-NMR chemical shifts (SCS) of the C1, C=O and N-H atom indicated different sensitivity with respect to electronic substituent effects. A better correlation of the SCSc=o with a combination of electrophilic and nucleophilic substituent constants indicated a significant contribution of extended resonance interaction (∏-delocalization) within the ∏1-unit. The conformations of the inves­tigated compounds were studied using the DFT B3LYP/6-311G**method and, together with the results of 13C-NMR and IR spectroscopic studies, a better insight into the influence of such a structure on the transmission of electronic substituent effects was obtained., Principi linearnih korelacija slobodnih energija (LFER) su primenjeni na IR, 1H- i 13C-NMR spektralne podatke N-(supstituisanih fenil)-2-cijanoacetamida. Pri sintezi N-(supstituisanih fenil)-2-cijanoacetamida izvršen je zadovoljavajući izbor supstituenata u pogledu elektronskih svojstava kako bi se adekvatno sagledao uticaj elektronskih efekata supstituenata na pomeranja u IR, 1H- i 13C-NMR spektralnim podacima. Primenom proste Hametove jednačine dobijene su zadovoljavajuće korelacije. Na osnovu korelacionih rezultata uočen je primaran uticaj elektronskih efekata na SCS (supstituentom indukovana hemijska pomeranja) vrednosti N-H vodonika, C1 i C=O ugljenika ispitivanih jedinjenja. Korelacioni rezultati za C=O ugljenik se značajno popravljaju ako se koristi kombinacija Ϭ+ i Ϭ- konstanti supstituenata, takozvane elektrofilne i nukleofilne konstante supstituenata, što ukazuje na postojanje značajne proširene rezonancione interakcije supstituenata i elektronske gustine karbonilne grupe. Vrednosti konstanti proporcionalnosti pF i pR za sve atome, ukazuju na približno isti doprinos efekta polja i rezonancionog efekta supstituenata. Efekat polja je nešto izraženji na N-H vodoniku, i za sve atome pokazuje značajne razlike u odnosu na njihov položaj u molekulskoj strukturi ispitivanih jedinjenja. Uticaj efekata supstituenata na IR vibracije istezanja N-H (simetrične i antisimetrične), C=O i CN veze je prevashodno elektronske prirode što se može zaključiti na osnovu dobrih korelacija dobijenih primenom Hametove jednačine i Ϭ parametara supstituenata. Osim toga izvršena je optimizacija geometrije ispitivanih jedinjenja primenom DFT B3LYP/ 6-311G**metode, pri čemu je nađeno da je trans-izomer nešto stabilnji, izuzev u slučaju jedinjenja 3. Supstituisana fenil-grupa i amidna grupa, kod trans-izomera, su približno koplanarne, dok se kod cis- izomera uočava značajna devijacija koja je značajno određena elektronskim efektima prisutnog supstituenta. Takođe je ispitivan položaj cis/trans ravnoteže u ugjen-tetrahloridu, i na osnovu rezultata FT/R analize, kada je prisutan H, CH3, OCH3, Br, i COOH supstituent, nađeno je da je cis izomer u velikom višku, a za ostala jedinjenja utvrđeno je postojanje ravnoteže cis- i trans-izomera.",
publisher = "Association of the Chemical Engineers of Serbia",
journal = "Chemical Industry & Chemical Engineering Quarterly",
title = "Substituent effect on IR, 1H- and 13C-NMR spectral data in N-substituted phenyl)-2-cyanoacetamides: A correlation study, Uticaj supstituenata na IR, 1H- i 13C-NMR spektralne podatke N-(supstituisanih fenil)-2-cijanoacetamida - korelaciona analiza",
pages = "78-67",
number = "1",
volume = "19",
doi = "10.2298/CICEQ120109044M"
}

Marinković, A., Brkić, D. R., Martinović, J. S., Mijin, D., Milčić, M.,& Petrović, S.. (2013). Substituent effect on IR, 1H- and 13C-NMR spectral data in N-substituted phenyl)-2-cyanoacetamides: A correlation study. in Chemical Industry & Chemical Engineering Quarterly
Association of the Chemical Engineers of Serbia., 19(1), 67-78.
https://doi.org/10.2298/CICEQ120109044M

Marinković A, Brkić DR, Martinović JS, Mijin D, Milčić M, Petrović S. Substituent effect on IR, 1H- and 13C-NMR spectral data in N-substituted phenyl)-2-cyanoacetamides: A correlation study. in Chemical Industry & Chemical Engineering Quarterly. 2013;19(1):67-78.
doi:10.2298/CICEQ120109044M .

Marinković, Aleksandar, Brkić, Dominik R., Martinović, Jelena S., Mijin, Dušan, Milčić, Miloš, Petrović, Slobodan, "Substituent effect on IR, 1H- and 13C-NMR spectral data in N-substituted phenyl)-2-cyanoacetamides: A correlation study" in Chemical Industry & Chemical Engineering Quarterly, 19, no. 1 (2013):67-78,
https://doi.org/10.2298/CICEQ120109044M . .

TY  - JOUR
AU  - Ajaj, Ismail
AU  - Mijin, Dušan
AU  - Maslak, Veselin
AU  - Brković, Danijela V
AU  - Milčić, Miloš
AU  - Todorović, Nina
AU  - Marinković, Aleksandar
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2524
AB  - A simple and convenient synthesis of tautomeric (6 or 2)-hydroxy-4-methyl-(2 or 6)-oxo-1-(substituted phenyl)-(1,2 or 1,6)-dihydropyridine-3-carbonitriles from ethyl acetoacetate and 2-cyano-N-(substituted phenyl)ethanamides using microwave-assisted chemistry is presented. The structure of the obtained product was confirmed by the use of FT-IR, NMR, UV, and MS techniques. The presence of tautomeric forms (6-hydroxy-4-methyl-2-oxo-1-(substituted phenyl)-1,2-dihydropyridine-3-carbonitrile and 2-hydroxy-4-methyl-6-oxo-1-(substituted phenyl)-1,6-dihydropyridine-3-carbonitrile) and the state of equilibrium of the obtained product in DMSO-d (6) was studied by H-1 and C-13 NMR spectroscopy, as well as B3LYP/6-311++G(d,p) and GIAO/WP04/aug-cc-pVDZ theoretical calculations.
PB  - Springer Wien, Wien
T2  - Monatshefte Fur Chemie
T1  - A simple and convenient synthesis of tautomeric (6 or 2)-hydroxy-4-methyl-(2 or 6)-oxo-1-(substituted phenyl)-(1,2 or 1,6)-dihydropyridine-3-carbonitriles
EP  - 675
IS  - 5
SP  - 665
VL  - 144
DO  - 10.1007/s00706-012-0911-5
ER  - 

@article{
author = "Ajaj, Ismail and Mijin, Dušan and Maslak, Veselin and Brković, Danijela V and Milčić, Miloš and Todorović, Nina and Marinković, Aleksandar",
year = "2013",
abstract = "A simple and convenient synthesis of tautomeric (6 or 2)-hydroxy-4-methyl-(2 or 6)-oxo-1-(substituted phenyl)-(1,2 or 1,6)-dihydropyridine-3-carbonitriles from ethyl acetoacetate and 2-cyano-N-(substituted phenyl)ethanamides using microwave-assisted chemistry is presented. The structure of the obtained product was confirmed by the use of FT-IR, NMR, UV, and MS techniques. The presence of tautomeric forms (6-hydroxy-4-methyl-2-oxo-1-(substituted phenyl)-1,2-dihydropyridine-3-carbonitrile and 2-hydroxy-4-methyl-6-oxo-1-(substituted phenyl)-1,6-dihydropyridine-3-carbonitrile) and the state of equilibrium of the obtained product in DMSO-d (6) was studied by H-1 and C-13 NMR spectroscopy, as well as B3LYP/6-311++G(d,p) and GIAO/WP04/aug-cc-pVDZ theoretical calculations.",
publisher = "Springer Wien, Wien",
journal = "Monatshefte Fur Chemie",
title = "A simple and convenient synthesis of tautomeric (6 or 2)-hydroxy-4-methyl-(2 or 6)-oxo-1-(substituted phenyl)-(1,2 or 1,6)-dihydropyridine-3-carbonitriles",
pages = "675-665",
number = "5",
volume = "144",
doi = "10.1007/s00706-012-0911-5"
}

Ajaj, I., Mijin, D., Maslak, V., Brković, D. V., Milčić, M., Todorović, N.,& Marinković, A.. (2013). A simple and convenient synthesis of tautomeric (6 or 2)-hydroxy-4-methyl-(2 or 6)-oxo-1-(substituted phenyl)-(1,2 or 1,6)-dihydropyridine-3-carbonitriles. in Monatshefte Fur Chemie
Springer Wien, Wien., 144(5), 665-675.
https://doi.org/10.1007/s00706-012-0911-5

Ajaj I, Mijin D, Maslak V, Brković DV, Milčić M, Todorović N, Marinković A. A simple and convenient synthesis of tautomeric (6 or 2)-hydroxy-4-methyl-(2 or 6)-oxo-1-(substituted phenyl)-(1,2 or 1,6)-dihydropyridine-3-carbonitriles. in Monatshefte Fur Chemie. 2013;144(5):665-675.
doi:10.1007/s00706-012-0911-5 .

Ajaj, Ismail, Mijin, Dušan, Maslak, Veselin, Brković, Danijela V, Milčić, Miloš, Todorović, Nina, Marinković, Aleksandar, "A simple and convenient synthesis of tautomeric (6 or 2)-hydroxy-4-methyl-(2 or 6)-oxo-1-(substituted phenyl)-(1,2 or 1,6)-dihydropyridine-3-carbonitriles" in Monatshefte Fur Chemie, 144, no. 5 (2013):665-675,
https://doi.org/10.1007/s00706-012-0911-5 . .

TY  - JOUR
AU  - Rančić, Milica
AU  - Trišović, Nemanja
AU  - Milčić, Miloš
AU  - Ajaj, Ismail
AU  - Marinković, Aleksandar
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2460
AB  - The electronic structure of 5-arylidene-2,4-thiazolidinediones has been studied by using experimental and theoretical methodology. The theoretical calculations of the investigated 5-arylidene-2,4-thiazolidinediones have been performed by the use of quantum chemical methods. The calculated C-13 NMR chemical shifts and NBO atomic charges provide an insight into the influence of such a structure on the transmission of electronic substituent effects. Linear free energy relationships (LFERs) have been further applied to their C-13 NMR chemical shifts. The correlation analyses for the substituent-induced chemical shifts (SCS) have been performed with sigma using SSP (single substituent parameter), field (sigma(F)) and resonance (sigma(R)) parameters using DSP (dual substituent parameter), as well as the Yukawa-Tsuno model. The presented correlations account satisfactorily for the polar and resonance substituent effects operative at C-beta. and C-7 carbons, while reverse substituent effect was found for C-alpha. The comparison of correlation results for the investigated molecules with those obtained for seven structurally related styrene series has indicated that specific cross-interaction of phenyl substituent and groups attached at C-alpha carbon causes increased sensitivity of SCS C-beta to the resonance effect with increasing of electron-accepting capabilities of the group present at C-beta.
PB  - Elsevier, Amsterdam
T2  - Journal of Molecular Structure
T1  - Experimental and theoretical study of substituent effect on C-13 NMR chemical shifts of 5-arylidene-2,4-thiazolidinediones
EP  - 68
SP  - 59
VL  - 1049
DO  - 10.1016/j.molstruc.2013.06.027
ER  - 

@article{
author = "Rančić, Milica and Trišović, Nemanja and Milčić, Miloš and Ajaj, Ismail and Marinković, Aleksandar",
year = "2013",
abstract = "The electronic structure of 5-arylidene-2,4-thiazolidinediones has been studied by using experimental and theoretical methodology. The theoretical calculations of the investigated 5-arylidene-2,4-thiazolidinediones have been performed by the use of quantum chemical methods. The calculated C-13 NMR chemical shifts and NBO atomic charges provide an insight into the influence of such a structure on the transmission of electronic substituent effects. Linear free energy relationships (LFERs) have been further applied to their C-13 NMR chemical shifts. The correlation analyses for the substituent-induced chemical shifts (SCS) have been performed with sigma using SSP (single substituent parameter), field (sigma(F)) and resonance (sigma(R)) parameters using DSP (dual substituent parameter), as well as the Yukawa-Tsuno model. The presented correlations account satisfactorily for the polar and resonance substituent effects operative at C-beta. and C-7 carbons, while reverse substituent effect was found for C-alpha. The comparison of correlation results for the investigated molecules with those obtained for seven structurally related styrene series has indicated that specific cross-interaction of phenyl substituent and groups attached at C-alpha carbon causes increased sensitivity of SCS C-beta to the resonance effect with increasing of electron-accepting capabilities of the group present at C-beta.",
publisher = "Elsevier, Amsterdam",
journal = "Journal of Molecular Structure",
title = "Experimental and theoretical study of substituent effect on C-13 NMR chemical shifts of 5-arylidene-2,4-thiazolidinediones",
pages = "68-59",
volume = "1049",
doi = "10.1016/j.molstruc.2013.06.027"
}

Rančić, M., Trišović, N., Milčić, M., Ajaj, I.,& Marinković, A.. (2013). Experimental and theoretical study of substituent effect on C-13 NMR chemical shifts of 5-arylidene-2,4-thiazolidinediones. in Journal of Molecular Structure
Elsevier, Amsterdam., 1049, 59-68.
https://doi.org/10.1016/j.molstruc.2013.06.027

Rančić M, Trišović N, Milčić M, Ajaj I, Marinković A. Experimental and theoretical study of substituent effect on C-13 NMR chemical shifts of 5-arylidene-2,4-thiazolidinediones. in Journal of Molecular Structure. 2013;1049:59-68.
doi:10.1016/j.molstruc.2013.06.027 .

Rančić, Milica, Trišović, Nemanja, Milčić, Miloš, Ajaj, Ismail, Marinković, Aleksandar, "Experimental and theoretical study of substituent effect on C-13 NMR chemical shifts of 5-arylidene-2,4-thiazolidinediones" in Journal of Molecular Structure, 1049 (2013):59-68,
https://doi.org/10.1016/j.molstruc.2013.06.027 . .

TY  - JOUR
AU  - Rančić, Milica
AU  - Trišović, Nemanja
AU  - Milčić, Miloš
AU  - Ušćumlić, Gordana
AU  - Marinković, Aleksandar
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2249
AB  - The absorption spectra of twelve 5-arylidene-2,4-thiazolidinediones were recorded in twenty one solvents in the range from 300 to 600 nm. The effect of specific and non-specific solvent-solute interactions on the absorption maxima shifts were evaluated by using the Catalan solvent parameter set. Furthermore, the experimental findings were interpreted with the aid of ab initio MP2 and time-dependent density functional (TD-DFT) methods. It was found that different substituents significantly change the extent of conjugation in the molecules and further affect their intramolecular charge transfer character.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy
T1  - Substituent and solvent effects on intramolecular charge transfer of 5-arylidene-2,4-thiazolidinediones
EP  - 507
SP  - 500
VL  - 86
DO  - 10.1016/j.saa.2011.10.074
ER  - 

@article{
author = "Rančić, Milica and Trišović, Nemanja and Milčić, Miloš and Ušćumlić, Gordana and Marinković, Aleksandar",
year = "2012",
abstract = "The absorption spectra of twelve 5-arylidene-2,4-thiazolidinediones were recorded in twenty one solvents in the range from 300 to 600 nm. The effect of specific and non-specific solvent-solute interactions on the absorption maxima shifts were evaluated by using the Catalan solvent parameter set. Furthermore, the experimental findings were interpreted with the aid of ab initio MP2 and time-dependent density functional (TD-DFT) methods. It was found that different substituents significantly change the extent of conjugation in the molecules and further affect their intramolecular charge transfer character.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy",
title = "Substituent and solvent effects on intramolecular charge transfer of 5-arylidene-2,4-thiazolidinediones",
pages = "507-500",
volume = "86",
doi = "10.1016/j.saa.2011.10.074"
}

Rančić, M., Trišović, N., Milčić, M., Ušćumlić, G.,& Marinković, A.. (2012). Substituent and solvent effects on intramolecular charge transfer of 5-arylidene-2,4-thiazolidinediones. in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy
Pergamon-Elsevier Science Ltd, Oxford., 86, 500-507.
https://doi.org/10.1016/j.saa.2011.10.074

Rančić M, Trišović N, Milčić M, Ušćumlić G, Marinković A. Substituent and solvent effects on intramolecular charge transfer of 5-arylidene-2,4-thiazolidinediones. in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy. 2012;86:500-507.
doi:10.1016/j.saa.2011.10.074 .

Rančić, Milica, Trišović, Nemanja, Milčić, Miloš, Ušćumlić, Gordana, Marinković, Aleksandar, "Substituent and solvent effects on intramolecular charge transfer of 5-arylidene-2,4-thiazolidinediones" in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 86 (2012):500-507,
https://doi.org/10.1016/j.saa.2011.10.074 . .