Synthesis, spectral analysis, stability constants, antioxidant and biological activities of Co (II), Ni (II) and Cu (II) mixed ligand complexes of nicotinamide, theophylline and thiocyanate

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dc.contributor.authorAltun, Ozlen
dc.contributor.authorSuozer, Mehtap
dc.date.accessioned2024-06-12T11:15:28Z
dc.date.available2024-06-12T11:15:28Z
dc.date.issued2017
dc.departmentTrakya Üniversitesien_US
dc.description.abstractIn the present study, transition metal complexes or coordination entities with metal precursors such as Co (II), Ni (II) and Cu (II) of mixed ligands namely, nicotinamide (NA), theophylline (TP) and KSCN in water were synthesized under refiuxing conditions. The optimization of the reactions to obtain the composition of complexes was performed. The structural elucidation of the complexes was undertaken by using physico-chemical and spectroscopic methods (UV/Vis, FT-IR, Mass and XRD) and thermal analysis. The spectral measurements of mixed ligands with the Co (II), Ni (II) and Cu (II) complexes are compared with each other in determining which atoms of the ligand are coordinated to the metal ion. Based on spectral and magnetic moment measurements, all the coordination entities were identified as in distorted octahedral structure and have the form [M(NA)(2)(TP)(2)(SCN)(2)].xH(2)O. In addition, K (stability constant) and AG (Gibbs free energy) values were calculated by using the Babko and Stanley & Turner's methods. Antioxidant, antibacterial and antifungal activities of the complexes were studied. (C) 2017 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipTrakya University [TUBAP-2010/72]en_US
dc.description.sponsorshipWe thank Trakya University TUBAP-2010/72 for financial support. We (Assoc Prof Ozlen ALTUN and Research Student Mehtap SUoZER) confirm that Trakya University just provided financial support within the scope of the project for chemicals in the manuscript and we declare that the support received did not lead to any conflict of interests regarding the publication of this manuscript. There is no need for Trakya University's confirmation to publish this manuscript.en_US
dc.identifier.doi10.1016/j.molstruc.2017.07.069
dc.identifier.endpage314en_US
dc.identifier.issn0022-2860
dc.identifier.issn1872-8014
dc.identifier.scopus2-s2.0-85026766799en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage307en_US
dc.identifier.urihttps://doi.org/10.1016/j.molstruc.2017.07.069
dc.identifier.urihttps://hdl.handle.net/20.500.14551/23948
dc.identifier.volume1149en_US
dc.identifier.wosWOS:000413387300033en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Bven_US
dc.relation.ispartofJournal Of Molecular Structureen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSpectrophotometryen_US
dc.subjectNicotinamideen_US
dc.subjectTheophyllineen_US
dc.subjectStability Constanten_US
dc.subjectAntioxidant Activityen_US
dc.subjectBiological Activityen_US
dc.subjectTransition-Metal-Complexesen_US
dc.subjectO-Phenylenediamineen_US
dc.subjectAqueous-Solutionen_US
dc.subjectSolubilityen_US
dc.subjectCaffeineen_US
dc.subjectDerivativesen_US
dc.subjectGold(Iii)en_US
dc.subjectSolventsen_US
dc.subjectCu(Ii)en_US
dc.subjectCopperen_US
dc.titleSynthesis, spectral analysis, stability constants, antioxidant and biological activities of Co (II), Ni (II) and Cu (II) mixed ligand complexes of nicotinamide, theophylline and thiocyanateen_US
dc.typeArticleen_US

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