Polymetallic Complexes. Part-XLVI. Complexes of Cobalt-, Nickel-, Copper-, Zinc-, Cadmium-, Mercury(II) with ON-x-NO Donor Doubly-bidentate Chelating Schiff Bases

Department of Chemistry, Khallikote College, Berhampur-760 001
Manuscript received 11 May 1993, accepted 16 November 1993

Schiff bases derived from 4,4'-diaminodiphenylsulphone with salicyladehyde and 2-hydroxy-1-naphthaldehyde behave as ON-x-NO donor doubly-bidentate ligands and form dinuclear complexes with divalent Co, Ni, Cu, Zn, Cd and Hg ions. The Co^II Ni^II and Cu^II complexes are found to be either octahedral or distorted-octahedral, whereas a tetradedral stereochemistry can be assigned to the Zn^II, Cd^II and Hg^II complexes. The complexes have been characterised by analytical, conductance, magnetic, ir, electronic, esr and nmr spectral data.