TY  - CONF
AU  - Lazić, Anita
AU  - Lađarević, Jelena
AU  - Mašulović, Aleksandra
AU  - Gak Simić, Kristina
AU  - Matović, Luka
AU  - Đorđević, Ivana
AU  - Trišović, Nemanja
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7402
AB  - A convenient and efficient approach toward the synthesis of six 3-(4-substituted benzyl)-6,7-benzo-1,3-diazaspiro[4.5]decane-2,4-diones (1‒6) by Bucherer-Bergs reaction and further alkylation at position 3 of the hydantoin ring is reported. Further, their chemical structure was confirmed by melting points, elemental analysis, FT-IR, NMR and UV–Vis spectroscopic methods. To gain an insight into interactions which the investigated spirohydantoins establish with their environment, their absorption spectra were recorded in selected solvents of different polarity and the solvent effects on the UV-Vis absorption band positions, intensity and shape, were discussed. Substiuent effects on the solvatochromism of compounds 1−6 were analyzed using the Hammett's equation. Considering the broad applications of hydantoin derivatives, as well as the fact that their relative importance may increase in the future, results obtained in this study serve as a basis for further investigations.
PB  - Szeged : University of Szeged
C3  - Proceedings of the 29th International Symposium on Analytical and Environmental Problems, Szeged, Hungary, November 13-14, 2023
T1  - Evaluation of solvent and substituent effects on absorption spectra of spirohydantoins derived from alfa-tetralone
SP  - 202
EP  - 206
UR  - https://hdl.handle.net/21.15107/rcub_cer_7402
ER  - 

@conference{
author = "Lazić, Anita and Lađarević, Jelena and Mašulović, Aleksandra and Gak Simić, Kristina and Matović, Luka and Đorđević, Ivana and Trišović, Nemanja",
year = "2023",
abstract = "A convenient and efficient approach toward the synthesis of six 3-(4-substituted benzyl)-6,7-benzo-1,3-diazaspiro[4.5]decane-2,4-diones (1‒6) by Bucherer-Bergs reaction and further alkylation at position 3 of the hydantoin ring is reported. Further, their chemical structure was confirmed by melting points, elemental analysis, FT-IR, NMR and UV–Vis spectroscopic methods. To gain an insight into interactions which the investigated spirohydantoins establish with their environment, their absorption spectra were recorded in selected solvents of different polarity and the solvent effects on the UV-Vis absorption band positions, intensity and shape, were discussed. Substiuent effects on the solvatochromism of compounds 1−6 were analyzed using the Hammett's equation. Considering the broad applications of hydantoin derivatives, as well as the fact that their relative importance may increase in the future, results obtained in this study serve as a basis for further investigations.",
publisher = "Szeged : University of Szeged",
journal = "Proceedings of the 29th International Symposium on Analytical and Environmental Problems, Szeged, Hungary, November 13-14, 2023",
title = "Evaluation of solvent and substituent effects on absorption spectra of spirohydantoins derived from alfa-tetralone",
pages = "202-206",
url = "https://hdl.handle.net/21.15107/rcub_cer_7402"
}

Lazić, A., Lađarević, J., Mašulović, A., Gak Simić, K., Matović, L., Đorđević, I.,& Trišović, N.. (2023). Evaluation of solvent and substituent effects on absorption spectra of spirohydantoins derived from alfa-tetralone. in Proceedings of the 29th International Symposium on Analytical and Environmental Problems, Szeged, Hungary, November 13-14, 2023
Szeged : University of Szeged., 202-206.
https://hdl.handle.net/21.15107/rcub_cer_7402

Lazić A, Lađarević J, Mašulović A, Gak Simić K, Matović L, Đorđević I, Trišović N. Evaluation of solvent and substituent effects on absorption spectra of spirohydantoins derived from alfa-tetralone. in Proceedings of the 29th International Symposium on Analytical and Environmental Problems, Szeged, Hungary, November 13-14, 2023. 2023;:202-206.
https://hdl.handle.net/21.15107/rcub_cer_7402 .

Lazić, Anita, Lađarević, Jelena, Mašulović, Aleksandra, Gak Simić, Kristina, Matović, Luka, Đorđević, Ivana, Trišović, Nemanja, "Evaluation of solvent and substituent effects on absorption spectra of spirohydantoins derived from alfa-tetralone" in Proceedings of the 29th International Symposium on Analytical and Environmental Problems, Szeged, Hungary, November 13-14, 2023 (2023):202-206,
https://hdl.handle.net/21.15107/rcub_cer_7402 .

TY  - JOUR
AU  - Lazić, Anita
AU  - Radovanović, Lidija
AU  - Gak Simić, Kristina
AU  - Rogan, Jelena
AU  - Janjić, Goran
AU  - Trišović, Nemanja
AU  - Đorđević, Ivana
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5427
AB  - Two spirohydantoin derivatives, 3-(4-chlorobenzoyl)-1,3-diazaspiro[4.5]decane-2,4-dione (1) and 3-(4-bromobenzoyl)-1,3-diazaspiro[4.5]decane-2,4-dione (2), were synthesized and analyzed by single crystal X-ray diffraction, DFT and QTAIM calculations. Simple substitution of the benzoyl unit gave rise to different crystal structures. In 1, a parallel stack along the b-axis with alternating perpendicular separation is formed, while in 2 the R46(32) nets are joined together to form stacks which enclose linear channels. Hierarchical development of these crystal structures was analyzed through dimeric motifs associated with the presence of intermolecular interactions. By including the previously reported structurally-related spirohydantoin derivatives, we created a set of structures which enabled us to evaluate substituent effects on their conformational preferences, i.e., widening of the dihedral angle between the hydantoin and substituted benzoyl unit when going from F to Br. A conformational search revealed that the value of the torsion angle N3-C11-C12-C13 can be regarded as a compromise between the extended conjugation between the carbonyl and phenyl group and intramolecular C-H⋯O interaction between these two groups. This intramolecular effect is more pronounced on the torsion angle C2-N3-C11-C12, which defines the relative orientation between the hydantoin ring and the carbonyl bridge. The present work may provide a basis for design of new cyclohexane-5-spirohydantoins with potential for pharmaceutical applications both at the molecular and supramolecular level.
PB  - USA : Royal Society of Chemistry
T2  - CrystEngComm
T1  - Unravelling conformational and crystal packing preferences of cyclohexane-5-spirohydantoin derivatives incorporating a halogenated benzoyl group
VL  - 24
IS  - 22
SP  - 4106
EP  - 4119
DO  - 10.1039/d2ce00376g
ER  - 

@article{
author = "Lazić, Anita and Radovanović, Lidija and Gak Simić, Kristina and Rogan, Jelena and Janjić, Goran and Trišović, Nemanja and Đorđević, Ivana",
year = "2022",
abstract = "Two spirohydantoin derivatives, 3-(4-chlorobenzoyl)-1,3-diazaspiro[4.5]decane-2,4-dione (1) and 3-(4-bromobenzoyl)-1,3-diazaspiro[4.5]decane-2,4-dione (2), were synthesized and analyzed by single crystal X-ray diffraction, DFT and QTAIM calculations. Simple substitution of the benzoyl unit gave rise to different crystal structures. In 1, a parallel stack along the b-axis with alternating perpendicular separation is formed, while in 2 the R46(32) nets are joined together to form stacks which enclose linear channels. Hierarchical development of these crystal structures was analyzed through dimeric motifs associated with the presence of intermolecular interactions. By including the previously reported structurally-related spirohydantoin derivatives, we created a set of structures which enabled us to evaluate substituent effects on their conformational preferences, i.e., widening of the dihedral angle between the hydantoin and substituted benzoyl unit when going from F to Br. A conformational search revealed that the value of the torsion angle N3-C11-C12-C13 can be regarded as a compromise between the extended conjugation between the carbonyl and phenyl group and intramolecular C-H⋯O interaction between these two groups. This intramolecular effect is more pronounced on the torsion angle C2-N3-C11-C12, which defines the relative orientation between the hydantoin ring and the carbonyl bridge. The present work may provide a basis for design of new cyclohexane-5-spirohydantoins with potential for pharmaceutical applications both at the molecular and supramolecular level.",
publisher = "USA : Royal Society of Chemistry",
journal = "CrystEngComm",
title = "Unravelling conformational and crystal packing preferences of cyclohexane-5-spirohydantoin derivatives incorporating a halogenated benzoyl group",
volume = "24",
number = "22",
pages = "4106-4119",
doi = "10.1039/d2ce00376g"
}

Lazić, A., Radovanović, L., Gak Simić, K., Rogan, J., Janjić, G., Trišović, N.,& Đorđević, I.. (2022). Unravelling conformational and crystal packing preferences of cyclohexane-5-spirohydantoin derivatives incorporating a halogenated benzoyl group. in CrystEngComm
USA : Royal Society of Chemistry., 24(22), 4106-4119.
https://doi.org/10.1039/d2ce00376g

Lazić A, Radovanović L, Gak Simić K, Rogan J, Janjić G, Trišović N, Đorđević I. Unravelling conformational and crystal packing preferences of cyclohexane-5-spirohydantoin derivatives incorporating a halogenated benzoyl group. in CrystEngComm. 2022;24(22):4106-4119.
doi:10.1039/d2ce00376g .

Lazić, Anita, Radovanović, Lidija, Gak Simić, Kristina, Rogan, Jelena, Janjić, Goran, Trišović, Nemanja, Đorđević, Ivana, "Unravelling conformational and crystal packing preferences of cyclohexane-5-spirohydantoin derivatives incorporating a halogenated benzoyl group" in CrystEngComm, 24, no. 22 (2022):4106-4119,
https://doi.org/10.1039/d2ce00376g . .

TY  - CONF
AU  - Gak Simić, Kristina
AU  - Lazić, Anita
AU  - Radovanović, Lidija
AU  - Rogan, Jelena
AU  - Janjić, Goran
AU  - Đorđević, Ivana
AU  - Trišović, Nemanja
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7126
AB  - Синтетисан је дериват циклохексан-5-спирохидантоина и одређена је његова кристална
структура. Хијерархијски развој кристалног паковања дискутован је са аспекта кооперативности димерних мотива који настају преко различитих интермолекулских
интеракција, и то: јаких N–H···O водоничних веза и слабих C–H···O, C–H···Cl и C–H···π
интеракција. Кристално паковање задржава мотив, који се обично среће код деривата
хидантоина, у коме су два инверзано оријентисана молекула повезана паром N–H···O
водоничних веза. Специфична структурна карактеристика јесу паралелни слојеви дуж ac-равни. Пошто овај мотив повезује сваки други слој, растојање између слојева се наизменично мења. Накнадна анализа Хиршфелдове површине омогућила је
разраду квалитативних и квантитативних доприноса интермолекулских интеракција
проучаваном кристалном паковању.
AB  - A derivative of cyclohexane-5-spirohydantoin was synthesized and its crystal structure was determined. The hierarchical development of the crystal packing was discussed through cooperativity of various dimeric motifs associated with the presence of different intermolecular interactions, namely strong N–H···O, and weaker C–H···O, C–H···Cl and C–H···π interactions. The crystal packing retained the motif commonly found in hydantoin derivatives where two molecules related by inversion are linked by a pair of N–H∙∙∙O hydrogen bonds. A hallmark structural feature was a parallel layer arrangement to the ac-plane with alternating perpendicular separation, whereby this motif connect every second layer. An analysis of the Hirshfeld surface further elaborated the qualitative and quantitative contributions of intermolecular interactions to the crystal packing.
PB  - Serbian Crystallographic Society
C3  - Изводи радова - XXVII Конференција Српског кристалографског друштва, Крагујевац / Abstracts - 27th Conference of the Serbian crystallographic society , Kragujevac
T1  - Supramolekulska organizacija 3-(4-hlorbenzoil)-1,3- diazaspiro[4.5]dekan-2,4-diona
T1  - Supramolecular association in 3-(4-chlorobenzoyl)-1,3-diazaspiro[4.5]decane-2,4- dione
SP  - 24
EP  - 25
UR  - https://hdl.handle.net/21.15107/rcub_cer_7126
ER  - 

@conference{
author = "Gak Simić, Kristina and Lazić, Anita and Radovanović, Lidija and Rogan, Jelena and Janjić, Goran and Đorđević, Ivana and Trišović, Nemanja",
year = "2021",
abstract = "Синтетисан је дериват циклохексан-5-спирохидантоина и одређена је његова кристална
структура. Хијерархијски развој кристалног паковања дискутован је са аспекта кооперативности димерних мотива који настају преко различитих интермолекулских
интеракција, и то: јаких N–H···O водоничних веза и слабих C–H···O, C–H···Cl и C–H···π
интеракција. Кристално паковање задржава мотив, који се обично среће код деривата
хидантоина, у коме су два инверзано оријентисана молекула повезана паром N–H···O
водоничних веза. Специфична структурна карактеристика јесу паралелни слојеви дуж ac-равни. Пошто овај мотив повезује сваки други слој, растојање између слојева се наизменично мења. Накнадна анализа Хиршфелдове површине омогућила је
разраду квалитативних и квантитативних доприноса интермолекулских интеракција
проучаваном кристалном паковању., A derivative of cyclohexane-5-spirohydantoin was synthesized and its crystal structure was determined. The hierarchical development of the crystal packing was discussed through cooperativity of various dimeric motifs associated with the presence of different intermolecular interactions, namely strong N–H···O, and weaker C–H···O, C–H···Cl and C–H···π interactions. The crystal packing retained the motif commonly found in hydantoin derivatives where two molecules related by inversion are linked by a pair of N–H∙∙∙O hydrogen bonds. A hallmark structural feature was a parallel layer arrangement to the ac-plane with alternating perpendicular separation, whereby this motif connect every second layer. An analysis of the Hirshfeld surface further elaborated the qualitative and quantitative contributions of intermolecular interactions to the crystal packing.",
publisher = "Serbian Crystallographic Society",
journal = "Изводи радова - XXVII Конференција Српског кристалографског друштва, Крагујевац / Abstracts - 27th Conference of the Serbian crystallographic society , Kragujevac",
title = "Supramolekulska organizacija 3-(4-hlorbenzoil)-1,3- diazaspiro[4.5]dekan-2,4-diona, Supramolecular association in 3-(4-chlorobenzoyl)-1,3-diazaspiro[4.5]decane-2,4- dione",
pages = "24-25",
url = "https://hdl.handle.net/21.15107/rcub_cer_7126"
}

Gak Simić, K., Lazić, A., Radovanović, L., Rogan, J., Janjić, G., Đorđević, I.,& Trišović, N.. (2021). Supramolekulska organizacija 3-(4-hlorbenzoil)-1,3- diazaspiro[4.5]dekan-2,4-diona. in Изводи радова - XXVII Конференција Српског кристалографског друштва, Крагујевац / Abstracts - 27th Conference of the Serbian crystallographic society , Kragujevac
Serbian Crystallographic Society., 24-25.
https://hdl.handle.net/21.15107/rcub_cer_7126

Gak Simić K, Lazić A, Radovanović L, Rogan J, Janjić G, Đorđević I, Trišović N. Supramolekulska organizacija 3-(4-hlorbenzoil)-1,3- diazaspiro[4.5]dekan-2,4-diona. in Изводи радова - XXVII Конференција Српског кристалографског друштва, Крагујевац / Abstracts - 27th Conference of the Serbian crystallographic society , Kragujevac. 2021;:24-25.
https://hdl.handle.net/21.15107/rcub_cer_7126 .

Gak Simić, Kristina, Lazić, Anita, Radovanović, Lidija, Rogan, Jelena, Janjić, Goran, Đorđević, Ivana, Trišović, Nemanja, "Supramolekulska organizacija 3-(4-hlorbenzoil)-1,3- diazaspiro[4.5]dekan-2,4-diona" in Изводи радова - XXVII Конференција Српског кристалографског друштва, Крагујевац / Abstracts - 27th Conference of the Serbian crystallographic society , Kragujevac (2021):24-25,
https://hdl.handle.net/21.15107/rcub_cer_7126 .

TY  - JOUR
AU  - Gak Simić, Kristina
AU  - Đorđević, Ivana S.
AU  - Lazić, Anita M.
AU  - Radovanović, Lidija D.
AU  - Petković-Benazzouz, Marija
AU  - Rogan, Jelena R.
AU  - Trišović, Nemanja
AU  - Janjić, Goran
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4678
AB  - The quantitative assessment of intermolecular interactions and their cooperative effects has been performed in spirohydantoin-based model compounds, 3-benzoyl-1,3-diazaspiro[4.5]decane-2,4-dione (1) and 3-(4-fluorobenzoyl)-1,3-diazaspiro[4.5]decane-2,4-dione (2), through single crystal X-ray crystallography and quantum chemical studies. In both crystal structures, molecules generate the same hydrogen-bonded centrosymmetric R22(8) synthon. The extended supramolecular architectures depend on the C-HO, C-Hπ, stacking interactions and parallel interactions at large offsets, which lead to molecular sheets and further, with the assistance of the C-HF interaction in the case of2, to three-dimensional networks. Electrostatic potential maps have indicated that formation of the intermolecular FF interaction in the crystal structure of2results in a new region with a larger surface area and a higher negative potential in comparison to the individual fluorine atoms. Establishment of this interaction leads to strengthening of the interaction of one of the fluorine atoms with a third molecule from the environment which does not interact with both of them. When this third molecule interacts with both fluorine atoms simultaneously, the calculations have shown that the effect of strengthening of the individual interactions due to formation of the FF interaction is absent.
PB  - Royal Society of Chemistry
T2  - CrystEngComm
T1  - On the supramolecular outcomes of fluorination of cyclohexane-5-spirohydantoin derivatives
VL  - 23
IS  - 13
SP  - 2606
EP  - 2622
DO  - 10.1039/d0ce01841d
ER  - 

@article{
author = "Gak Simić, Kristina and Đorđević, Ivana S. and Lazić, Anita M. and Radovanović, Lidija D. and Petković-Benazzouz, Marija and Rogan, Jelena R. and Trišović, Nemanja and Janjić, Goran",
year = "2021",
abstract = "The quantitative assessment of intermolecular interactions and their cooperative effects has been performed in spirohydantoin-based model compounds, 3-benzoyl-1,3-diazaspiro[4.5]decane-2,4-dione (1) and 3-(4-fluorobenzoyl)-1,3-diazaspiro[4.5]decane-2,4-dione (2), through single crystal X-ray crystallography and quantum chemical studies. In both crystal structures, molecules generate the same hydrogen-bonded centrosymmetric R22(8) synthon. The extended supramolecular architectures depend on the C-HO, C-Hπ, stacking interactions and parallel interactions at large offsets, which lead to molecular sheets and further, with the assistance of the C-HF interaction in the case of2, to three-dimensional networks. Electrostatic potential maps have indicated that formation of the intermolecular FF interaction in the crystal structure of2results in a new region with a larger surface area and a higher negative potential in comparison to the individual fluorine atoms. Establishment of this interaction leads to strengthening of the interaction of one of the fluorine atoms with a third molecule from the environment which does not interact with both of them. When this third molecule interacts with both fluorine atoms simultaneously, the calculations have shown that the effect of strengthening of the individual interactions due to formation of the FF interaction is absent.",
publisher = "Royal Society of Chemistry",
journal = "CrystEngComm",
title = "On the supramolecular outcomes of fluorination of cyclohexane-5-spirohydantoin derivatives",
volume = "23",
number = "13",
pages = "2606-2622",
doi = "10.1039/d0ce01841d"
}

Gak Simić, K., Đorđević, I. S., Lazić, A. M., Radovanović, L. D., Petković-Benazzouz, M., Rogan, J. R., Trišović, N.,& Janjić, G.. (2021). On the supramolecular outcomes of fluorination of cyclohexane-5-spirohydantoin derivatives. in CrystEngComm
Royal Society of Chemistry., 23(13), 2606-2622.
https://doi.org/10.1039/d0ce01841d

Gak Simić K, Đorđević IS, Lazić AM, Radovanović LD, Petković-Benazzouz M, Rogan JR, Trišović N, Janjić G. On the supramolecular outcomes of fluorination of cyclohexane-5-spirohydantoin derivatives. in CrystEngComm. 2021;23(13):2606-2622.
doi:10.1039/d0ce01841d .

Gak Simić, Kristina, Đorđević, Ivana S., Lazić, Anita M., Radovanović, Lidija D., Petković-Benazzouz, Marija, Rogan, Jelena R., Trišović, Nemanja, Janjić, Goran, "On the supramolecular outcomes of fluorination of cyclohexane-5-spirohydantoin derivatives" in CrystEngComm, 23, no. 13 (2021):2606-2622,
https://doi.org/10.1039/d0ce01841d . .

TY  - CONF
AU  - Đorđević, Ivana
AU  - Janjić, Goran
AU  - Lazić, Anita
AU  - Gak, Kristina
AU  - Valentić, Nataša
AU  - Trišović, Nemanja
AU  - Radovanović, Lidija
AU  - Rogan, Jelena
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7541
AB  - Nekovalentne interakcije imaju značajnu ulogu u formiranju supramolekulskogkristalnog pakovanja molekula. Interakcije koje uključuju atome halogena obezbeđujuslabo, ali visoko usmerenu kontrolu pakovanja molekula u čvrstom stanju. UvođenjeF-atoma može dovesti do značajnih promena u 2D ili 3D strukturama [1], povećanjastabilnosti biomolekula [2] ili poboljšanja dizajna lekova [3]. Da bi se ispitao efekatsupstitucije H-atoma F-atomom, sintetisana su i strukturno okarakterisana dva derivatahidantoina: C15H16N2O3 (1) i C15H15N2O3F (2) (slika).Analiza kristalnih pakovanja 1 i 2 pokazala je da suNH…O i CH…O vodonične veze najbrojnije. U strukturi2 se zbog fluorovanja povećava broj interakcijacikloheksilnog (Ch) i fenil-grupe (Ph) prstena (CH…πinterakcije), kao i između dva Ph prstena (π-πinterakcije). Kvantno-hemijski proračuni na modelsistemima koji predstavljaju dimere derivata hidantoinai izolovanih cikličnih jedinjenja, pokazali su dafluorovanje utiče na stvaranje jačih CH…π i π-πinterakcija. Atom F u 2 učestvuje u formiranju triCH…F i jedne F…F interakcije, što je u saglasnosti sarezultatima Kembridžke baze podataka, koji su pokazalida su najbrojnije CH…F i F…F interakcije, a njihovajačina dostiže vrednost 2 kcal∙mol–1.Kristalogafski podaci: 1, P–1, a = 6,3079(13),b = 10,573(2), c = 11,415(2) Å, α = 67,21(3), β = 78,84(3),γ = 76,16(3)°, R1 = 6,06%; 2, P–1, a = 5,9981(12), b =11,148(2), c = 12,073(2) Å, α = 108,98(3), β = 101,57(3),γ = 105,27(3)°, R1 = 4,82%.
AB  - Non-covalent interactions have a significant role in supramolecular crystal packingsof the molecules. Halogen interactions provide weak but highly directed control of thepacking of molecules in the solid state. Introduction of F atom can leads to significantdifferences in 2D or 3D structures [1], higher structural stability of biomolecules [2] orimprove drug design [3]. In order to examine the substitution effect of H atom with Fatom, two hydantoin derivatives were synthesized and structurally characterized:C15H16N2O3 (1) i C15H15N2O3F (2) (Figure).Crystallographic analysis of 1 and 2 showed thatNH…O and CH…O hydrogen bonds are the most numerousin their crystal packings. Due to fluoridation in 2, the number of interactions among cyclohexyl (Ch) and phenyl ring(Ph) rings (CH…π interactions), as well as among two Phrings (π-π interactions) is increased. Quantum-chemicalcalculations on the model systems presented by dimmersof hydantoin derivatives and isolated cyclic compounds,verified that fluoridation caused the formation of strongerCH…π and π-π interactions. The F atom in 2 is involved inthree CH…F and one F…F interactions, which is in agreement with the results from the Cambridge Structural Database, which have shown that CH…F and F…F interactionsare the most numerous, and their strength reaches the valueof 2 kcal∙mol–1.Crystallographic data: 1, P–1, a = 6.3079(13),b = 10.573(2), c = 11.415(2) Å, α = 67.21(3), β = 78.84(3),γ = 76.16(3)°, R1 = 6.06%; 2, P–1, a = 5.9981(12),b = 11.148(2), c = 12.073(2) Å, α = 108.98(3), β = 101.57(3), γ = 105.27(3)°, R1 = 4.82%.
PB  - Beograd : Srpsko kristalografsko društvo
C3  - Izvodi radova / XXVI konferencija Srpskog kristalografskog društva, Srebrno jezero, 27–28. jun 2019
T1  - Uloga nekovalentnih interakcija fluora u pakovanju motiva: analiza kristalografskih podataka i kvantno-hemijski proračuni
T1  - The role of non-covalent fluorine interactions in packing motifs: crystallographic data analysis and quantum chemical calculations
SP  - 38
EP  - 39
UR  - https://hdl.handle.net/21.15107/rcub_cer_7541
ER  - 

@conference{
author = "Đorđević, Ivana and Janjić, Goran and Lazić, Anita and Gak, Kristina and Valentić, Nataša and Trišović, Nemanja and Radovanović, Lidija and Rogan, Jelena",
year = "2019",
abstract = "Nekovalentne interakcije imaju značajnu ulogu u formiranju supramolekulskogkristalnog pakovanja molekula. Interakcije koje uključuju atome halogena obezbeđujuslabo, ali visoko usmerenu kontrolu pakovanja molekula u čvrstom stanju. UvođenjeF-atoma može dovesti do značajnih promena u 2D ili 3D strukturama [1], povećanjastabilnosti biomolekula [2] ili poboljšanja dizajna lekova [3]. Da bi se ispitao efekatsupstitucije H-atoma F-atomom, sintetisana su i strukturno okarakterisana dva derivatahidantoina: C15H16N2O3 (1) i C15H15N2O3F (2) (slika).Analiza kristalnih pakovanja 1 i 2 pokazala je da suNH…O i CH…O vodonične veze najbrojnije. U strukturi2 se zbog fluorovanja povećava broj interakcijacikloheksilnog (Ch) i fenil-grupe (Ph) prstena (CH…πinterakcije), kao i između dva Ph prstena (π-πinterakcije). Kvantno-hemijski proračuni na modelsistemima koji predstavljaju dimere derivata hidantoinai izolovanih cikličnih jedinjenja, pokazali su dafluorovanje utiče na stvaranje jačih CH…π i π-πinterakcija. Atom F u 2 učestvuje u formiranju triCH…F i jedne F…F interakcije, što je u saglasnosti sarezultatima Kembridžke baze podataka, koji su pokazalida su najbrojnije CH…F i F…F interakcije, a njihovajačina dostiže vrednost 2 kcal∙mol–1.Kristalogafski podaci: 1, P–1, a = 6,3079(13),b = 10,573(2), c = 11,415(2) Å, α = 67,21(3), β = 78,84(3),γ = 76,16(3)°, R1 = 6,06%; 2, P–1, a = 5,9981(12), b =11,148(2), c = 12,073(2) Å, α = 108,98(3), β = 101,57(3),γ = 105,27(3)°, R1 = 4,82%., Non-covalent interactions have a significant role in supramolecular crystal packingsof the molecules. Halogen interactions provide weak but highly directed control of thepacking of molecules in the solid state. Introduction of F atom can leads to significantdifferences in 2D or 3D structures [1], higher structural stability of biomolecules [2] orimprove drug design [3]. In order to examine the substitution effect of H atom with Fatom, two hydantoin derivatives were synthesized and structurally characterized:C15H16N2O3 (1) i C15H15N2O3F (2) (Figure).Crystallographic analysis of 1 and 2 showed thatNH…O and CH…O hydrogen bonds are the most numerousin their crystal packings. Due to fluoridation in 2, the number of interactions among cyclohexyl (Ch) and phenyl ring(Ph) rings (CH…π interactions), as well as among two Phrings (π-π interactions) is increased. Quantum-chemicalcalculations on the model systems presented by dimmersof hydantoin derivatives and isolated cyclic compounds,verified that fluoridation caused the formation of strongerCH…π and π-π interactions. The F atom in 2 is involved inthree CH…F and one F…F interactions, which is in agreement with the results from the Cambridge Structural Database, which have shown that CH…F and F…F interactionsare the most numerous, and their strength reaches the valueof 2 kcal∙mol–1.Crystallographic data: 1, P–1, a = 6.3079(13),b = 10.573(2), c = 11.415(2) Å, α = 67.21(3), β = 78.84(3),γ = 76.16(3)°, R1 = 6.06%; 2, P–1, a = 5.9981(12),b = 11.148(2), c = 12.073(2) Å, α = 108.98(3), β = 101.57(3), γ = 105.27(3)°, R1 = 4.82%.",
publisher = "Beograd : Srpsko kristalografsko društvo",
journal = "Izvodi radova / XXVI konferencija Srpskog kristalografskog društva, Srebrno jezero, 27–28. jun 2019",
title = "Uloga nekovalentnih interakcija fluora u pakovanju motiva: analiza kristalografskih podataka i kvantno-hemijski proračuni, The role of non-covalent fluorine interactions in packing motifs: crystallographic data analysis and quantum chemical calculations",
pages = "38-39",
url = "https://hdl.handle.net/21.15107/rcub_cer_7541"
}

Đorđević, I., Janjić, G., Lazić, A., Gak, K., Valentić, N., Trišović, N., Radovanović, L.,& Rogan, J.. (2019). Uloga nekovalentnih interakcija fluora u pakovanju motiva: analiza kristalografskih podataka i kvantno-hemijski proračuni. in Izvodi radova / XXVI konferencija Srpskog kristalografskog društva, Srebrno jezero, 27–28. jun 2019
Beograd : Srpsko kristalografsko društvo., 38-39.
https://hdl.handle.net/21.15107/rcub_cer_7541

Đorđević I, Janjić G, Lazić A, Gak K, Valentić N, Trišović N, Radovanović L, Rogan J. Uloga nekovalentnih interakcija fluora u pakovanju motiva: analiza kristalografskih podataka i kvantno-hemijski proračuni. in Izvodi radova / XXVI konferencija Srpskog kristalografskog društva, Srebrno jezero, 27–28. jun 2019. 2019;:38-39.
https://hdl.handle.net/21.15107/rcub_cer_7541 .

Đorđević, Ivana, Janjić, Goran, Lazić, Anita, Gak, Kristina, Valentić, Nataša, Trišović, Nemanja, Radovanović, Lidija, Rogan, Jelena, "Uloga nekovalentnih interakcija fluora u pakovanju motiva: analiza kristalografskih podataka i kvantno-hemijski proračuni" in Izvodi radova / XXVI konferencija Srpskog kristalografskog društva, Srebrno jezero, 27–28. jun 2019 (2019):38-39,
https://hdl.handle.net/21.15107/rcub_cer_7541 .