Studies on binuclear complexes of N(1)-salicylidene-N (2)-t (3)-methyl-r(2),c( 6)diphenylpiperidin-4-one azine

2291-2295A novel heterocyclic ligand, N(1)-salicylidene-N (2)-t (3)-methyl-r(2),c( 6)diphenylpiperidin-4-one azine (SMDPA) and its complexes with Ni (II) [Ni(NO3)2, NiCl2 and Ni(ClO4)2],Co(II) and Cu(II) have been prepared and characterized by elemental analyses, magnetic susceptibility measurements, spectral and thermal analyses. The spectral data reveal that the ligand (HL) acts as a uni-negative bidentate ligand and the metal : ligand stoichiometry to be 2:2 with all the metal ions. The X-ray (powder) diffraction study of Ni (NO3)2- SM DPA complex shows that the complex crystallises in triclinic lattice