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A new binucleating ligand incorporating four oxime groups and its copper(II), manganese(II) and cobalt(III) complexes
Authors:Serbest  Kerim  Değirmencioğlu  İsmail  Karaböcek  Serdar  Güner  Saadettin
Affiliation:(1) Department of Chemistry, Karadeniz Technical University, 61080 Trabzon, Turkey
Abstract:A new binucleating ligand incorporating four oxime groups, butane-2,3-dione O-[4-aminooxy-2,3-bis-(2-hydroxyimino-1-methyl-propylideneaminooxymethyl)-but-2-enyl]-dioxime, (H4mto), has been synthesized and its dinuclear cobalt(III), copper(II), and homo- and hetero-tetranuclear copper(II)–manganese(II) complexes have been prepared and characterized by 1H- and 13C-n.m.r., i.r., magnetic moments and mass spectral studies. Elemental analyses, stoichiometric and spectroscopic data indicate that the metal ions in the complexes are coordinated to the oxime nitrogen atoms (C=N) and the data support the proposed structure for H4mto and its complexes. Moreover, dinuclear cobalt(III) and copper(II) complexes of H4mto have a 2:1 metal:ligand ratio.
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