Synthesis and Characterization of some Transition metal complexes derived from Bidentate Schiff Base Ligand

A new Schiff base has been synthesized from 3-(3-nitrophenyl)-1-phenyl-1H-pyrazole-4carbaldehyde and O-amino phenol. Metal complexes of the Schiff base have been synthesized from acetate salt of Cu (II), Co (II) and Ni (II) metal in the alcoholic medium. The newly prepared Schiff base ligand and metal complexes have been characterized by various physicochemical techniques such as Elemental analysis, Magnetic moment, molar conductance method, UV/ Visible, IR, H NMR, C NMR spectral technique and thermo gravimetric studies. On the basis of elemental and spectral studies, six coordinated geometry was assigned to these complexes. In the presence of these results, it is suggested that this ligand act as a bidentate ligand. UV/Visible, IR and TGA studies confirmed the presence of the coordinated water molecules in the metal complexes.