TY  - JOUR
AU  - Begović, Nebojša
AU  - Vasić, Milica M.
AU  - Blagojević, Vladimir A.
AU  - Filipović, Nenad R.
AU  - Marinković, Aleksandar
AU  - Malešević, Aleksandar
AU  - Minić, Dragica M.
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3634
AB  - The structure of new cis-dichloro[(E)-ethyl-2-(2-((8-hydroxyquinolin-2-il)methylene)hidrazinyl)acetate-kappa(2) N]-palladium(II) complex was determined using a combination of XRD and IR measurements and DFT calculations. Inherent flexibility of its structure is evident from the complexity of its IR spectrum, which could only be theoretically reproduced as a combination of several closely related structures, involving rotation around C-O bond and changes in hydrogen interactions of its -OH group. Its thermal stability and decomposition were studied non-isothermally, and the thermal decomposition mechanism was proposed using correlation with DFT calculations at the molecular level. It was determined that the initial degradation step consists of the release of Cl free radical, which then reacts with both the initial compound and the degradation products. Besides the endothermic steps, there are exothermic ones, contributing to the complex shape of the DSC curve, consisted of overlapping endothermic and exothermic peaks. Deconvolution of DTG curve allowed identification of primary fragments of the initial degradation process and, in conjunction with DFT calculations, construction of the most likely reaction mechanism.
PB  - Springer, Dordrecht
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Synthesis and thermal stability of cis-dichloro[(E)-ethyl-2-(2-((8-hydroxyquinolin-2-il)methylene)hidrazinyl)acetate-kappa(2) N]-palladium(II) complex
EP  - 711
IS  - 2
SP  - 701
VL  - 130
DO  - 10.1007/s10973-017-6458-2
ER  - 

@article{
author = "Begović, Nebojša and Vasić, Milica M. and Blagojević, Vladimir A. and Filipović, Nenad R. and Marinković, Aleksandar and Malešević, Aleksandar and Minić, Dragica M.",
year = "2017",
abstract = "The structure of new cis-dichloro[(E)-ethyl-2-(2-((8-hydroxyquinolin-2-il)methylene)hidrazinyl)acetate-kappa(2) N]-palladium(II) complex was determined using a combination of XRD and IR measurements and DFT calculations. Inherent flexibility of its structure is evident from the complexity of its IR spectrum, which could only be theoretically reproduced as a combination of several closely related structures, involving rotation around C-O bond and changes in hydrogen interactions of its -OH group. Its thermal stability and decomposition were studied non-isothermally, and the thermal decomposition mechanism was proposed using correlation with DFT calculations at the molecular level. It was determined that the initial degradation step consists of the release of Cl free radical, which then reacts with both the initial compound and the degradation products. Besides the endothermic steps, there are exothermic ones, contributing to the complex shape of the DSC curve, consisted of overlapping endothermic and exothermic peaks. Deconvolution of DTG curve allowed identification of primary fragments of the initial degradation process and, in conjunction with DFT calculations, construction of the most likely reaction mechanism.",
publisher = "Springer, Dordrecht",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Synthesis and thermal stability of cis-dichloro[(E)-ethyl-2-(2-((8-hydroxyquinolin-2-il)methylene)hidrazinyl)acetate-kappa(2) N]-palladium(II) complex",
pages = "711-701",
number = "2",
volume = "130",
doi = "10.1007/s10973-017-6458-2"
}

Begović, N., Vasić, M. M., Blagojević, V. A., Filipović, N. R., Marinković, A., Malešević, A.,& Minić, D. M.. (2017). Synthesis and thermal stability of cis-dichloro[(E)-ethyl-2-(2-((8-hydroxyquinolin-2-il)methylene)hidrazinyl)acetate-kappa(2) N]-palladium(II) complex. in Journal of Thermal Analysis and Calorimetry
Springer, Dordrecht., 130(2), 701-711.
https://doi.org/10.1007/s10973-017-6458-2

Begović N, Vasić MM, Blagojević VA, Filipović NR, Marinković A, Malešević A, Minić DM. Synthesis and thermal stability of cis-dichloro[(E)-ethyl-2-(2-((8-hydroxyquinolin-2-il)methylene)hidrazinyl)acetate-kappa(2) N]-palladium(II) complex. in Journal of Thermal Analysis and Calorimetry. 2017;130(2):701-711.
doi:10.1007/s10973-017-6458-2 .

Begović, Nebojša, Vasić, Milica M., Blagojević, Vladimir A., Filipović, Nenad R., Marinković, Aleksandar, Malešević, Aleksandar, Minić, Dragica M., "Synthesis and thermal stability of cis-dichloro[(E)-ethyl-2-(2-((8-hydroxyquinolin-2-il)methylene)hidrazinyl)acetate-kappa(2) N]-palladium(II) complex" in Journal of Thermal Analysis and Calorimetry, 130, no. 2 (2017):701-711,
https://doi.org/10.1007/s10973-017-6458-2 . .

TY  - JOUR
AU  - Filipović, Nenad R.
AU  - Elshaflu, Hana
AU  - Grubišić, Sonja
AU  - Jovanović, Ljiljana S.
AU  - Rodić, Marko
AU  - Novaković, Irena T.
AU  - Malešević, Aleksandar
AU  - Đorđević, Ivana S.
AU  - Li, Haidong
AU  - Šojić, Nešo
AU  - Marinković, Aleksandar
AU  - Todorović, Tamara
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3695
AB  - The first Co(III) complexes with (1,3-selenazol-2-yl)hydrazones as an unexplored class of ligands were prepared and characterized by NMR spectroscopy and X-ray diffraction analysis. The novel ligands act as NNN tridentate chelators forming octahedral Co(III) complexes. The impact of structural changes on ligands' periphery as well as that of isosteric replacement of sulphur with selenium on the electrochemical and electronic absorption features of complexes are explored. To support the experimental data, density functional theory (DFT) calculations were also conducted. Theoretical NMR chemical shifts, the relative energies and natural bond orbital (NBO) analysis are calculated within the DFT approach, while the singlet excited state energies and HOMO-LUMO energy gap were calculated with time-dependent density functional theory (TD-DFT). The electrophilic f(-) and nucleophilic f(+) Fukui functions are well adapted to find the electrophile and nucleophile centres in the molecules. Both (1,3-selenazol-2-yl)- and (1,3-thiazol-2-yl) hydrazone Co(III) complexes showed potent antimicrobial and antioxidant activity. A significant difference among them was a smaller cytotoxicity of selenium compounds.
PB  - Royal Soc Chemistry, Cambridge
T2  - Dalton Transactions
T1  - Co(III) complexes of (1,3-selenazol-2-yl)hydrazones and their sulphur analogues
EP  - 2924
IS  - 9
SP  - 2910
VL  - 46
DO  - 10.1039/c6dt04785h
ER  - 

@article{
author = "Filipović, Nenad R. and Elshaflu, Hana and Grubišić, Sonja and Jovanović, Ljiljana S. and Rodić, Marko and Novaković, Irena T. and Malešević, Aleksandar and Đorđević, Ivana S. and Li, Haidong and Šojić, Nešo and Marinković, Aleksandar and Todorović, Tamara",
year = "2017",
abstract = "The first Co(III) complexes with (1,3-selenazol-2-yl)hydrazones as an unexplored class of ligands were prepared and characterized by NMR spectroscopy and X-ray diffraction analysis. The novel ligands act as NNN tridentate chelators forming octahedral Co(III) complexes. The impact of structural changes on ligands' periphery as well as that of isosteric replacement of sulphur with selenium on the electrochemical and electronic absorption features of complexes are explored. To support the experimental data, density functional theory (DFT) calculations were also conducted. Theoretical NMR chemical shifts, the relative energies and natural bond orbital (NBO) analysis are calculated within the DFT approach, while the singlet excited state energies and HOMO-LUMO energy gap were calculated with time-dependent density functional theory (TD-DFT). The electrophilic f(-) and nucleophilic f(+) Fukui functions are well adapted to find the electrophile and nucleophile centres in the molecules. Both (1,3-selenazol-2-yl)- and (1,3-thiazol-2-yl) hydrazone Co(III) complexes showed potent antimicrobial and antioxidant activity. A significant difference among them was a smaller cytotoxicity of selenium compounds.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "Dalton Transactions",
title = "Co(III) complexes of (1,3-selenazol-2-yl)hydrazones and their sulphur analogues",
pages = "2924-2910",
number = "9",
volume = "46",
doi = "10.1039/c6dt04785h"
}

Filipović, N. R., Elshaflu, H., Grubišić, S., Jovanović, L. S., Rodić, M., Novaković, I. T., Malešević, A., Đorđević, I. S., Li, H., Šojić, N., Marinković, A.,& Todorović, T.. (2017). Co(III) complexes of (1,3-selenazol-2-yl)hydrazones and their sulphur analogues. in Dalton Transactions
Royal Soc Chemistry, Cambridge., 46(9), 2910-2924.
https://doi.org/10.1039/c6dt04785h

Filipović NR, Elshaflu H, Grubišić S, Jovanović LS, Rodić M, Novaković IT, Malešević A, Đorđević IS, Li H, Šojić N, Marinković A, Todorović T. Co(III) complexes of (1,3-selenazol-2-yl)hydrazones and their sulphur analogues. in Dalton Transactions. 2017;46(9):2910-2924.
doi:10.1039/c6dt04785h .

Filipović, Nenad R., Elshaflu, Hana, Grubišić, Sonja, Jovanović, Ljiljana S., Rodić, Marko, Novaković, Irena T., Malešević, Aleksandar, Đorđević, Ivana S., Li, Haidong, Šojić, Nešo, Marinković, Aleksandar, Todorović, Tamara, "Co(III) complexes of (1,3-selenazol-2-yl)hydrazones and their sulphur analogues" in Dalton Transactions, 46, no. 9 (2017):2910-2924,
https://doi.org/10.1039/c6dt04785h . .

TY  - JOUR
AU  - Filipović, Nenad R.
AU  - Bjelogrlić, Snežana K.
AU  - Todorović, Tamara
AU  - Blagojević, Vladimir A.
AU  - Muller, Christian D.
AU  - Marinković, Aleksandar
AU  - Vujčić, Miroslava T.
AU  - Janović, Barbara S.
AU  - Malešević, Aleksandar
AU  - Begović, Nebojša
AU  - Senćanski, Milan V.
AU  - Minić, Dragica M.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3315
AB  - A new Ni(II) complex, [Ni(L)(H2O)] (1), with diethyl 3,3'-(2,2'-(1,1'-(pyridine-2,6-diyl) bis(ethan-1-yl-1-ylidene)) bis(hydrazin-1-yl-2-ylidene)) bis(3-oxopropanoate) ligand (H2L) was synthesized as a potential chemotherapeutic agent. Polidentate ligand was coordinated to Ni(II) NNN-tridentately, in dianionic form, while monodentate water coordination completed square-planar geometry around metal. Structure in the solution was determined by NMR spectroscopy and the same coordination mode was observed in the solid state using IR spectroscopy and further verified by DFT calculations and electrochemical studies. Thermal stability of 1 was determined in both air and nitrogen atmosphere. Anticancer activity of 1 was investigated on acute monocytic leukemia (THP-1) and pancreatic adenocarcinoma (AsPC-1) cell lines. On THP-1 cells 1 induced powerful apoptotic response (ED50 = 10 +/- 3 mu M), which was revealed to be only partially caspase-dependent, with activation of caspase-8 as the dominant course. This suggested that experimentally validated covalent binding of 1 to DNA is not the only mechanism responsible for programmed cell death. This was supported with experiments on AsPC-1 cells. Although treatment of those cells with 1 resulted in poor apoptotic response, cell cycle changes showed concentration-dependent shifts indicating a dual mechanism of activity. This study also reviews the results of preliminary biological screening, which demonstrates that 1 displays a unique pattern of anticancer activity with at least two mechanisms involved.
PB  - Royal Soc Chemistry, Cambridge
T2  - RSC Advances
T1  - Ni(II) complex with bishydrazone ligand: synthesis, characterization, DNA binding studies and pro-apoptotic and pro-differentiation induction in human cancerous cell lines
EP  - 108740
IS  - 110
SP  - 108726
VL  - 6
DO  - 10.1039/c6ra24604d
ER  - 

@article{
author = "Filipović, Nenad R. and Bjelogrlić, Snežana K. and Todorović, Tamara and Blagojević, Vladimir A. and Muller, Christian D. and Marinković, Aleksandar and Vujčić, Miroslava T. and Janović, Barbara S. and Malešević, Aleksandar and Begović, Nebojša and Senćanski, Milan V. and Minić, Dragica M.",
year = "2016",
abstract = "A new Ni(II) complex, [Ni(L)(H2O)] (1), with diethyl 3,3'-(2,2'-(1,1'-(pyridine-2,6-diyl) bis(ethan-1-yl-1-ylidene)) bis(hydrazin-1-yl-2-ylidene)) bis(3-oxopropanoate) ligand (H2L) was synthesized as a potential chemotherapeutic agent. Polidentate ligand was coordinated to Ni(II) NNN-tridentately, in dianionic form, while monodentate water coordination completed square-planar geometry around metal. Structure in the solution was determined by NMR spectroscopy and the same coordination mode was observed in the solid state using IR spectroscopy and further verified by DFT calculations and electrochemical studies. Thermal stability of 1 was determined in both air and nitrogen atmosphere. Anticancer activity of 1 was investigated on acute monocytic leukemia (THP-1) and pancreatic adenocarcinoma (AsPC-1) cell lines. On THP-1 cells 1 induced powerful apoptotic response (ED50 = 10 +/- 3 mu M), which was revealed to be only partially caspase-dependent, with activation of caspase-8 as the dominant course. This suggested that experimentally validated covalent binding of 1 to DNA is not the only mechanism responsible for programmed cell death. This was supported with experiments on AsPC-1 cells. Although treatment of those cells with 1 resulted in poor apoptotic response, cell cycle changes showed concentration-dependent shifts indicating a dual mechanism of activity. This study also reviews the results of preliminary biological screening, which demonstrates that 1 displays a unique pattern of anticancer activity with at least two mechanisms involved.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "RSC Advances",
title = "Ni(II) complex with bishydrazone ligand: synthesis, characterization, DNA binding studies and pro-apoptotic and pro-differentiation induction in human cancerous cell lines",
pages = "108740-108726",
number = "110",
volume = "6",
doi = "10.1039/c6ra24604d"
}

Filipović, N. R., Bjelogrlić, S. K., Todorović, T., Blagojević, V. A., Muller, C. D., Marinković, A., Vujčić, M. T., Janović, B. S., Malešević, A., Begović, N., Senćanski, M. V.,& Minić, D. M.. (2016). Ni(II) complex with bishydrazone ligand: synthesis, characterization, DNA binding studies and pro-apoptotic and pro-differentiation induction in human cancerous cell lines. in RSC Advances
Royal Soc Chemistry, Cambridge., 6(110), 108726-108740.
https://doi.org/10.1039/c6ra24604d

Filipović NR, Bjelogrlić SK, Todorović T, Blagojević VA, Muller CD, Marinković A, Vujčić MT, Janović BS, Malešević A, Begović N, Senćanski MV, Minić DM. Ni(II) complex with bishydrazone ligand: synthesis, characterization, DNA binding studies and pro-apoptotic and pro-differentiation induction in human cancerous cell lines. in RSC Advances. 2016;6(110):108726-108740.
doi:10.1039/c6ra24604d .

Filipović, Nenad R., Bjelogrlić, Snežana K., Todorović, Tamara, Blagojević, Vladimir A., Muller, Christian D., Marinković, Aleksandar, Vujčić, Miroslava T., Janović, Barbara S., Malešević, Aleksandar, Begović, Nebojša, Senćanski, Milan V., Minić, Dragica M., "Ni(II) complex with bishydrazone ligand: synthesis, characterization, DNA binding studies and pro-apoptotic and pro-differentiation induction in human cancerous cell lines" in RSC Advances, 6, no. 110 (2016):108726-108740,
https://doi.org/10.1039/c6ra24604d . .