Identification of radical structures on 1-pentamethylbenzyl-3-ethylimidazoliumsilver(I)bromide and 1,3-bis(pentamethylbenzyl)-4,5-dimethylbenzimidazoliumsilver(I)bromide exposed to gamma rays: an EPR study

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dc.contributor.authorCeylan, Yusuf
dc.contributor.authorUsta, Keziban
dc.contributor.authorKunduracıoğlu, Ahmet
dc.contributor.authorUsta, Ayhan
dc.contributor.authorÇetinkaya, Bekir
dc.date.accessioned2021-02-19T21:16:45Z
dc.date.available2021-02-19T21:16:45Z
dc.date.issued2016
dc.departmentALKÜ
dc.descriptionCetinkaya, Bekir/0000-0002-4551-8650
dc.description.abstract1-Pentamethylbenzyl-3-ethylimidazoliumsilver(I)bromide and 1,3-bis(pentamethylbenzyl)-4,5dimethylbenzimidazoliumsilver(I)bromide and their Ag+ complexes were synthesized and their polycrystal forms were produced by recrystallization in dichloromethane/Et2O solvent system. Structural determinations were carried out by H-1 NMR and C-13 NMR with a Varian 400 NMR system using tetramethylsilane as internal standard and CDCl3 as solvent. The disappearance of acidic N-heterocyclic carbene proton showed the formation of Ag(I) complexes. Also, elemental analyses were carried out. Electron paramagnetic resonance (EPR) measurements were performed to determine the formed radical structure on the samples irradiated at the room temperature for 72h by using Co-60-source with dose rate of 0.680kGy. The EPR measurements were carried out in the temperature range of 200K-450K. Identical radicals were determined on the irradiated compounds. It was observed that the shapes of the spectra of the samples were independent of the temperature but, the resonance line intensities changed linearly with the temperature. Also, it was detected that the free radical on the 1-pentamethylbenzyl-3-ethylimidazoliumsilver(I)bromide is not stable compared to that on the 1,3-bis(pentamethylbenzyl)-4,5dimethylbenzimidazoliumsilver(I)bromide. Copyright (c) 2016 John Wiley & Sons, Ltd.
dc.description.sponsorshipAlanya Alaaddin Keykubat UniversityAlanya Alaaddin Keykubat University; Scientific Research Projects Coordination Centers of Pamukkale, and Selcuk Universities - Turkey
dc.description.sponsorshipThis study was partially supported by Alanya Alaaddin Keykubat University and the Scientific Research Projects Coordination Centers of Pamukkale, and Selcuk Universities - Turkey.
dc.identifier.doi10.1002/mrc.4479
dc.identifier.endpage869en_US
dc.identifier.issn0749-1581
dc.identifier.issn1097-458X
dc.identifier.issue11en_US
dc.identifier.pmid27377553
dc.identifier.scopusqualityQ2
dc.identifier.startpage864en_US
dc.identifier.urihttps://doi.org/10.1002/mrc.4479
dc.identifier.urihttps://hdl.handle.net/20.500.12868/543
dc.identifier.volume54en_US
dc.identifier.wosWOS:000386019600001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthor0-belirlenecek
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofMagnetic Resonance In Chemistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectEPR
dc.subjectirradiation effect
dc.subjectchemical synthesis
dc.subjectNHC complexes
dc.titleIdentification of radical structures on 1-pentamethylbenzyl-3-ethylimidazoliumsilver(I)bromide and 1,3-bis(pentamethylbenzyl)-4,5-dimethylbenzimidazoliumsilver(I)bromide exposed to gamma rays: an EPR study
dc.typeArticle

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