Ni(II), Zn(II), and Fe(III) complexes derived from novel unsymmetrical salen-type ligands: preparation, characterization and some properties

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dc.authoridKaya, Ismet/0000-0002-9813-2962
dc.authoridKAYA, Yeliz/0000-0001-5606-8088
dc.authoridErcag, Ayse/0000-0003-0578-5698
dc.authoridKaracan Yeldir, Elif/0000-0001-8638-1198
dc.contributor.authorDilmen Portakal, Eylem
dc.contributor.authorKaya, Yeliz
dc.contributor.authorDemirayak, Emire
dc.contributor.authorKaracan Yeldir, Elif
dc.contributor.authorErcag, Ayse
dc.contributor.authorKaya, İsmet
dc.date.accessioned2025-01-27T20:56:18Z
dc.date.available2025-01-27T20:56:18Z
dc.date.issued2022
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractBy using a half-salen ligand (HL) and substituted salicylaldehydes, new unsymmetrical salen-type ligands (H2L1, H2L2, and H2L3) and their Ni(II), Zn(II) and Fe(III) complexes were synthesized. The compounds were characterized based on elemental analysis, IR, H-1 NMR, X-ray diffraction (for HL), spectroscopy, mass spectrometry, magnetic moment, molar conductance measurements, and thermal analysis (TGA). The unsymmetrical salen ligands, during complexation, are attached to the metal by two imine nitrogen atoms and two phenolic oxygen atoms in all complexes; in the Fe(III) complexes, the fifth coordination is completed by chloride. Square planar geometry or distorted square planar geometry for [NiL1-3], [ZnL1-3], and square pyramidal geometry for [FeL1-3Cl] are proposed. Conductance measurements suggest non-electrolytic nature of the metal complexes. Thermogravimetric analysis showed that the complexes exhibit higher stability than the ligands. The electrochemical properties of the compounds were studied by cyclic voltammetry. HOMO-LUMO energy levels and electrochemical band gaps (E '(g)) were calculated. The solid state electrical conductivity of the iodine-doped compounds was measured and their semiconductor properties were determined. In addition, fluorescence properties of ligands and Zn(II) complexes were investigated.
dc.description.sponsorshipScientific Research Projects Coordination Unit of Istanbul University-Cerrahpasa [17830]
dc.description.sponsorshipThis work was supported by the Scientific Research Projects Coordination Unit of Istanbul University-Cerrahpasa (Project Number 17830).
dc.identifier.doi10.1080/00958972.2022.2070485
dc.identifier.endpage628
dc.identifier.issn0095-8972
dc.identifier.issn1029-0389
dc.identifier.issue5-6
dc.identifier.scopus2-s2.0-85132674880
dc.identifier.scopusqualityQ3
dc.identifier.startpage611
dc.identifier.urihttps://doi.org/10.1080/00958972.2022.2070485
dc.identifier.urihttps://hdl.handle.net/20.500.12428/26364
dc.identifier.volume75
dc.identifier.wosWOS:000790172100001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTaylor & Francis Ltd
dc.relation.ispartofJournal of Coordination Chemistry
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectUnsymmetrical salen ligand
dc.subjecttransition metal complexes
dc.subjectfluorescent properties
dc.subjectTGA and CV
dc.subjectcrystal structure
dc.titleNi(II), Zn(II), and Fe(III) complexes derived from novel unsymmetrical salen-type ligands: preparation, characterization and some properties
dc.typeArticle

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