Synthesis and characterization of copper(II), nickel(II), and cobalt(II) chelates with tridentate Schiff base ligands derived from 4-amino-5-hydroxynaphthalene-2, 7-disulfonic acid

dc.contributor.authorTunçel M.
dc.contributor.authorSerin S.
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2003
dc.departmentNiğde ÖHÜ
dc.description.abstractNew Schiff bases have been synthesised by the condensation of 4-amino-5-hydroxynaphthalene-2,7-disulfonic acid mono sodium salt with o-vanillin (H2L1) and salicylaldehyde (H2L2), and their complexes with copper(II), cobalt(II) and nickel(II) have been prepared. All compounds were characterized by elemental analyses, FT-IR, electronic spectral data, magnetic moments, mass spectroscopy and molar conductance. The 13C NMR and 1H NMR spectra of the Schiff base ligands have been recorded. The results suggested that the Schiff bases are coordinated to the metal ions through the phenolic oxygens and azomethine nitrogen to give mononuclear complexes. Magnetic measurements and absorption spectral data reveals that the copper and nickel complexes have tetrahedral geometry. All compounds were found to be non-electrolytes in aqueous solutions. According to mass spectroscopy and thermogravimetric data, all complexes have one water molecule coordinated to the metal ion.
dc.description.sponsorshipInstitute for Research in Fundamental Sciences
dc.description.sponsorshipThe authors are grateful to the Science Research Fund of the University of C¸ ukurova in Turkey for supporting this work and to the Department of Chemistry for allowing to use of the laboratory facilities.
dc.identifier.doi10.1081/SIM-120021932
dc.identifier.endpage998
dc.identifier.issn0094-5714
dc.identifier.issue6
dc.identifier.scopus2-s2.0-0038637047
dc.identifier.scopusqualityN/A
dc.identifier.startpage985
dc.identifier.urihttps://dx.doi.org/10.1081/SIM-120021932
dc.identifier.urihttps://hdl.handle.net/11480/1336
dc.identifier.volume33
dc.identifier.wosWOS:000183985800005
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.relation.ispartofSynthesis and Reactivity in Inorganic and Metal-Organic Chemistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectEnol-imin tautomerism
dc.subjectSchiff base
dc.subjectTetrahedral complexes
dc.titleSynthesis and characterization of copper(II), nickel(II), and cobalt(II) chelates with tridentate Schiff base ligands derived from 4-amino-5-hydroxynaphthalene-2, 7-disulfonic acid
dc.typeArticle

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