F. Karipcin, B. Dede, Sabriye Percin-Ozkorucuklu
2010
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0
Influential Citations
62
Citations
Journal
Dyes and Pigments
Abstract
Abstract Manganese(II), cobalt(II) and nickel(II) acetates react with the ligand, 4-(2 - thiazolylazo)resorcinol, to form complexes of general formula [ML 2 ] for M Co(II), Ni(II) and [ML 2 ] · 2H 2 O for M Mn(II). Each of the azo complexes was characterized using elemental analysis, electrolytic conductance, UV–visible spectroscopy and magnetic susceptibility. An octahedral structure is proposed for all complexes prepared, which molar conductance data revealed to be non-electrolytes. IR spectra reveal that the ligand is coordinated to the metal ions in a tridentate manner via the resorcinol OH, azo N and thiazole N groups as donor sites. The electrochemical behaviour of the ligand and its complexes were obtained by cyclic voltammetry. Thermal decomposition studies were undertaken to secure additional information on the structure of the investigated compounds. The manganese(II) complex catalysed the disproportionation of hydrogen peroxide in the presence of imidazole.