A new binucleating ligand incorporating four oxime groups and its copper(II), manganese(II) and cobalt(III) complexes


Serbest K. , DEGIRMENCIOGLU I., KARABOCEK S., GUNER S. B.

TRANSITION METAL CHEMISTRY, vol.26, pp.232-236, 2001 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 26
  • Publication Date: 2001
  • Doi Number: 10.1023/a:1007161632102
  • Title of Journal : TRANSITION METAL CHEMISTRY
  • Page Numbers: pp.232-236

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, (H(4)mto), 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 H-1- and C-13-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 H(4)mto and its complexes. Moreover, dinuclear cobalt(III) and copper(II) complexes of H(4)mto have a 2:1 metal:ligand ratio.