POLYMETALLIC COMPLEXES PART LXXXXII DIMERIC COMPLEXES OF Co(II), Ni(II), Cu(II), Zn(II), Cd(II) AND Hg(II) WITH BIS-TRIDENTATE AND BIS-BIDENTATE AZODYE LIGANDS

摘要

Twelve dinuclear complexes of Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II) with one bis-tridentate azodye ligand (LH_4), Bis-[3, 3-di(2-hydroxy-4-sulphonicnaphthylazo)]-4, 4-dihydroxydinaphthalene and one bis-bidentate azodye ligand (LH_2), Bis-[3, 3-di(1-naphthylazo)]-4, 4-dihydroxy-dinaphthalene have been prepared. The complexes have been characterized by analytical, conductance, magnetic susceptibility, IR, electronic spectra, ESR, NMR, and X-ray diffraction (powder pattern) data. The cobalt (II) and nickel (II) complexes are found to be octahedral, copper (II) complexes are distorted octahedral and a tetrahedral stereochemistry has been assigned to Zn (II), Cd (II) and Hg (II) complexes.