BINUCLEAR METAL-COMPLEXES .3. COMPLEXES OF 1-HYDROXY-2, 3-DIMETHYL-5-CARBOXYLATO-1, 4-DIAZA-1, 3-PENTADIENE AND 1-HYDROXY-2, 3-DIMETHYL-4(2'-CARBOXYPHENYL)-1, 4-DIAZA-1, 3-BUTADIENE WITH BIVALENT TRANSITION-METAL ION COMPLEXES

Binuclear complexes of the type [M(HDCDP)(H2O)n]2 and [M(HDCDB)(H2O)n]2, where HDCDP and HDCDB are Schiff bases derived from glycine and diacetylmonoxime, and orthoaminobenzoic acid and diacetylmonoxime respectively, M = VO(II), Co(II), Ni(II), Cu(II) or Ag(II) and n = 0 or 2, have been synthesized. Physical and spectroscopic analyses indicate a binuclear structure for the complexes with metal ions in an octahedral environment, where the ligands coordinate to the metal centre through azomethine nitrogens, oxime and carboxylate oxygen in a tetradentate manner.