Polymetallic Complexes. Part-XXX. Complexes of Cobalt -, Nickel-, Copper-, Zinc-, Cadmium- and Mercury(II) with Doubly tridentate Chelating Azo -dye Ligand

Department of Chemistry, G. M. College, Sambalpur-768 004 Manuscript received 13 July 1989, revised 2 July 1990, accepted 22 August 1990 The azodye 1,4-bis(2'-hydroxy-3'-carboxy-5'-sulphonic phenylazo)benzene behaves as a doubly-tridentate chelating ligand and forms oxo·bridged tetranuclear complexes with divalent Co, Ni, Cu, Zn, Cd and Hg. The complexes were characterised on the basis of analytical, conductance, magnetic susceptibility, molecular weight,ir, esr and electronic spectral data