TY  - JOUR
AU  - Despotović, Vesna
AU  - Kordić, Branko
AU  - Kovacević, M.
AU  - Petrović, Slobodan
AU  - Jović, B.
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4317
AB  - This paper reports FT-IR and FT-NIR spectroscopic study of hydrogen bonding between N-mono-substituted caproamides and different ethers (diethyl ether and tetrahydrofuran) in carbon tetrachloride. With increase in ether concentration increase in intensity of red-shifted band, and decrease of intensity of monomer band has been observed. The MIR and NIR spectroscopic characteristics for N-H center dot center dot center dot O hydrogen bonded complexes and also the equilibrium constants for 1:1 complex formation are given. Further, influence of structural differences of ethers on hydrogen bonding was investigated using Taft equation. Good correlation between logarithm of formation constants and Taft steric and inductive factors has been obtained only for tetrahydrofuran in MIR range.
PB  - Elsevier Science Bv, Amsterdam
T2  - Journal of Molecular Structure
T1  - Investigation of Nsingle bondH⋯O interactions in N-monosubstituted caproamide – Ether systems: FT–IR and FT–NIR spectroscopic study
EP  - 24
SP  - 19
VL  - 1181
DO  - 10.1016/j.molstruc.2018.12.081
ER  - 

@article{
author = "Despotović, Vesna and Kordić, Branko and Kovacević, M. and Petrović, Slobodan and Jović, B.",
year = "2019",
abstract = "This paper reports FT-IR and FT-NIR spectroscopic study of hydrogen bonding between N-mono-substituted caproamides and different ethers (diethyl ether and tetrahydrofuran) in carbon tetrachloride. With increase in ether concentration increase in intensity of red-shifted band, and decrease of intensity of monomer band has been observed. The MIR and NIR spectroscopic characteristics for N-H center dot center dot center dot O hydrogen bonded complexes and also the equilibrium constants for 1:1 complex formation are given. Further, influence of structural differences of ethers on hydrogen bonding was investigated using Taft equation. Good correlation between logarithm of formation constants and Taft steric and inductive factors has been obtained only for tetrahydrofuran in MIR range.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Molecular Structure",
title = "Investigation of Nsingle bondH⋯O interactions in N-monosubstituted caproamide – Ether systems: FT–IR and FT–NIR spectroscopic study",
pages = "24-19",
volume = "1181",
doi = "10.1016/j.molstruc.2018.12.081"
}

Despotović, V., Kordić, B., Kovacević, M., Petrović, S.,& Jović, B.. (2019). Investigation of Nsingle bondH⋯O interactions in N-monosubstituted caproamide – Ether systems: FT–IR and FT–NIR spectroscopic study. in Journal of Molecular Structure
Elsevier Science Bv, Amsterdam., 1181, 19-24.
https://doi.org/10.1016/j.molstruc.2018.12.081

Despotović V, Kordić B, Kovacević M, Petrović S, Jović B. Investigation of Nsingle bondH⋯O interactions in N-monosubstituted caproamide – Ether systems: FT–IR and FT–NIR spectroscopic study. in Journal of Molecular Structure. 2019;1181:19-24.
doi:10.1016/j.molstruc.2018.12.081 .

Despotović, Vesna, Kordić, Branko, Kovacević, M., Petrović, Slobodan, Jović, B., "Investigation of Nsingle bondH⋯O interactions in N-monosubstituted caproamide – Ether systems: FT–IR and FT–NIR spectroscopic study" in Journal of Molecular Structure, 1181 (2019):19-24,
https://doi.org/10.1016/j.molstruc.2018.12.081 . .

TY  - JOUR
AU  - Despotović, Vesna
AU  - Trišović, Nemanja
AU  - Mandić, Anamarija
AU  - Ušćumlić, Gordana
AU  - Đaković-Sekulić, Tatjana
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2312
AB  - The retention of some 5,5-disubstituted hydantoins was investigated by reversed phase high performance thin-layer chromatography (RP HPTLC) and reversed phase high-pressure liquid chromatography (RP HPLC). The mobile phases were mixtures of methanol-water and acetonitrile-water in various volume fractions. In order to explore and visualize similarities and differences among the investigated compounds and chromatographic system, Principal Component Analysis (PCA) was used. Results show that the experimental lipophilicity indices estimated from retention data (Rm,w, log kw) and PC1 are directly correlated with logP values at a high significant statistical level.
AB  - Ispitano је retenciono ponašanje derivata 5,5-disupstituisanih hidantoina primenom dve tehnike tečne hromatografje na obrnutim fazama, i to hromatografije na tankom sloju velike moći razdvajanja (HPTLC) i tečne hromatografije pod visokim pritiskom (HPLC). Као pokretne faze Korišćene su smeše metanol-voda i acetonitril-voda u različitim zapreminskim odnosima. Da bi ispitali i vizuelno utvrdili sličnosti i razlike među ispitivanim supstancama u korišćenim hromatografskim sistemima, primenjena je analiza glavnih komponenti (PCA analiza). Rezultati su pokazali da između računskih logP vrednosti i hromatografskih parametara lipofilnosti koji su dobijeni ekstrapolacijom retencionih podataka (Rm,w, log kw), као i PC 1 postoji značajna startistička povezanost.
PB  - Association of the Chemical Engineers of Serbia
T2  - Chemical Industry & Chemical Engineering Quarterly
T1  - Lipophilicity assessment of some 5,5-disubstituted hydantoins by the means of reversed phase liquid chromatography
T1  - Procena lipofilnosti nekih 5,5-disupstituisanih hidantoina primenom tečne hromatografije na obrnutim fazama
EP  - 6
IS  - 1
SP  - 1
VL  - 19
DO  - 10.2298/CICEQ120124037D
ER  - 

@article{
author = "Despotović, Vesna and Trišović, Nemanja and Mandić, Anamarija and Ušćumlić, Gordana and Đaković-Sekulić, Tatjana",
year = "2013",
abstract = "The retention of some 5,5-disubstituted hydantoins was investigated by reversed phase high performance thin-layer chromatography (RP HPTLC) and reversed phase high-pressure liquid chromatography (RP HPLC). The mobile phases were mixtures of methanol-water and acetonitrile-water in various volume fractions. In order to explore and visualize similarities and differences among the investigated compounds and chromatographic system, Principal Component Analysis (PCA) was used. Results show that the experimental lipophilicity indices estimated from retention data (Rm,w, log kw) and PC1 are directly correlated with logP values at a high significant statistical level., Ispitano је retenciono ponašanje derivata 5,5-disupstituisanih hidantoina primenom dve tehnike tečne hromatografje na obrnutim fazama, i to hromatografije na tankom sloju velike moći razdvajanja (HPTLC) i tečne hromatografije pod visokim pritiskom (HPLC). Као pokretne faze Korišćene su smeše metanol-voda i acetonitril-voda u različitim zapreminskim odnosima. Da bi ispitali i vizuelno utvrdili sličnosti i razlike među ispitivanim supstancama u korišćenim hromatografskim sistemima, primenjena je analiza glavnih komponenti (PCA analiza). Rezultati su pokazali da između računskih logP vrednosti i hromatografskih parametara lipofilnosti koji su dobijeni ekstrapolacijom retencionih podataka (Rm,w, log kw), као i PC 1 postoji značajna startistička povezanost.",
publisher = "Association of the Chemical Engineers of Serbia",
journal = "Chemical Industry & Chemical Engineering Quarterly",
title = "Lipophilicity assessment of some 5,5-disubstituted hydantoins by the means of reversed phase liquid chromatography, Procena lipofilnosti nekih 5,5-disupstituisanih hidantoina primenom tečne hromatografije na obrnutim fazama",
pages = "6-1",
number = "1",
volume = "19",
doi = "10.2298/CICEQ120124037D"
}

Despotović, V., Trišović, N., Mandić, A., Ušćumlić, G.,& Đaković-Sekulić, T.. (2013). Lipophilicity assessment of some 5,5-disubstituted hydantoins by the means of reversed phase liquid chromatography. in Chemical Industry & Chemical Engineering Quarterly
Association of the Chemical Engineers of Serbia., 19(1), 1-6.
https://doi.org/10.2298/CICEQ120124037D

Despotović V, Trišović N, Mandić A, Ušćumlić G, Đaković-Sekulić T. Lipophilicity assessment of some 5,5-disubstituted hydantoins by the means of reversed phase liquid chromatography. in Chemical Industry & Chemical Engineering Quarterly. 2013;19(1):1-6.
doi:10.2298/CICEQ120124037D .

Despotović, Vesna, Trišović, Nemanja, Mandić, Anamarija, Ušćumlić, Gordana, Đaković-Sekulić, Tatjana, "Lipophilicity assessment of some 5,5-disubstituted hydantoins by the means of reversed phase liquid chromatography" in Chemical Industry & Chemical Engineering Quarterly, 19, no. 1 (2013):1-6,
https://doi.org/10.2298/CICEQ120124037D . .