SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF MANGANESE(II), COBALT(II) AND ZINC(II) COMPLEXES OF ISONITROSOACETOPHENONE THIOSEMICARBAZONE AND ISONITROSO-4-CHLOROACETOPHENONE THIOSEMICARBAZONE

The complexes of the formulae [MLCl3]Cl, [ML'Cl3]Cl (M = Ti); ML2 {whe re M = Mn(II), Co(II), Ni(II) and Zn(II); L = isonitrosoacetophenone t hiosemicarbazone (INAPT) and L'= isonitroso-4-chloroacetophenone thios emicarbazone} have been prepared and characterized on the basis of ele mental analysis, conductance, magnetic moments, IR, electronic and NMR spectral data. In all the complexes the ligand is coordinated to the central metal ion through 'S' (>C = S)'N'(N-OH)after deprotonation and 'N'(C = N) as shown by IR and NMR spectral studies.