Synthesis of monosodium salts of N-(5-nitro-salicylidene)-D-amino acid Schiff bases and their iron(III) complexes: spectral and physical characterizations, antioxidant activities

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dc.contributor.authorÖzdemir, Özlem
dc.contributor.authorGürkan, Perihan
dc.contributor.authorSarı, Musa
dc.contributor.authorTunç, Tuncay
dc.date.accessioned13.07.201910:50:10
dc.date.accessioned2019-07-29T19:28:58Z
dc.date.available13.07.201910:50:10
dc.date.available2019-07-29T19:28:58Z
dc.date.issued2015
dc.departmentEğitim Fakültesi
dc.description.abstractAmino acid Schiff bases, [NaL]nH(2)O (L=N-(2-hydroxy-5-nitrobenzylidene)alaninate, N-(2-hydroxy-5-nitrobenzylidene)valinate, and N-(2-hydroxy-5-nitrobenzylidene)phenylalaninate), were synthesized as monosodium salts ((LNa)-Na-1-(LNa)-Na-3). The structures of the monosodium salts were confirmed on the basis of elemental analysis, conductivity measurements, UV-vis, FT-IR, and 2D NMR (HMQC) spectroscopies. (LNa)-Na-1 was also structurally determined by single-crystal X-ray diffraction. Hydrogen bond between the amino N(2)-H and phenolate O(1) of the salicylidene part of the molecule played important roles in stabilizing the zwitterion crystal structure. The ranges of the D-H...A angles and those of the H...A and D...A distances indicated the presence of short hydrogen bonds in the structure. In addition, the monosodium salts have been evaluated for in vitro antioxidant activity. Iron(III) complexes ((LFe)-Fe-1-(LFe)-Fe-3) have been obtained by reaction of the appropriate ligand with iron(III) chloride in a 2:1M ratio. Fe(III) complexes were characterized by elemental and thermal analysis, conductivity and magnetic susceptibility measurements, UV-vis, FT-IR, and X-ray photoelectron spectroscopy methods.
dc.description.sponsorshipResearch Foundation of Gazi University [F.E.F.05/2011-24]; State of Planning Organization [2010K120480]
dc.description.sponsorshipWe are grateful to Research Foundation of Gazi University for supporting this study with the project F.E.F.05/2011-24. We are also thankful to Aksaray University Science and Technology Application and Research Center for the use of the Bruker SMART BREEZE CCD diffractometer (purchased under grant number 2010K120480 of the State of Planning Organization).
dc.identifier.doi10.1080/00958972.2015.1043908
dc.identifier.endpage2585en_US
dc.identifier.issn0095-8972
dc.identifier.issn1029-0389
dc.identifier.issue14en_US
dc.identifier.scopusqualityQ3
dc.identifier.startpage2565en_US
dc.identifier.urihttps://doi.org/10.1080/00958972.2015.1043908
dc.identifier.urihttps://hdl.handle.net/20.500.12451/6110
dc.identifier.volume68en_US
dc.identifier.wosWOS:000357867600014
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTaylor & Francis Ltd
dc.relation.ispartofJournal of Coordination Chemistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/embargoedAccess
dc.subjectAmino Acid Schiff Bases
dc.subjectMonosodium Salts
dc.subjectFe(III) Complexes
dc.subjectX-ray
dc.subjectXPS
dc.subjectAntioxidant Activity
dc.titleSynthesis of monosodium salts of N-(5-nitro-salicylidene)-D-amino acid Schiff bases and their iron(III) complexes: spectral and physical characterizations, antioxidant activities
dc.typeArticle

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