Binuclear and Mononuclear Cobalt(II), Nickel(II) and Copper(II) Complexes of 4,4 '-bis(Alkylaminoisonitrosoacetyl)Diphenyl-Methane Derivatives

4,4'-Bis(chloroacetyl)diphenylmethane has been prepared from ClCH2COCl and Ph2CH2. 4,4'-Methylenebis(phenylglyoxylohydroximoyl chloride has also been obtained. Four new substituted 4,4'-bis(alkylaminoisonitrosoacetyl) diphenylmethanes (ligands) have been prepared from 4,4'-methylenebis( phenylglyoxylohydroximoyl chloride) and the corresponding amines. The Ni-II, Cu-II and Co-II complexes of these ligands were prepared and their structures were identified using AAS, i.r., H-1-n.m.r. spectral data, elemental analyses and magnetic susceptibility measurements.