Synthesis and Characterization of Mn(II), Co(II), Ni(II),Cu(II), Zn(II) and Cd(II) Complexes with Thiophene -2- CarboxylicAcid Hydrazide

Metal (II) complex of thiophene -2- carboxylic acid Hydrazide (TCH) ligand of the type [M(TCH)2X2] where M= Mn(II), Co(II), Ni(II),Cu(II), Zn(II) and Cd(II) , X=Cl-, NO3- have been prepared and characterized by metal analysis, molar conductance, magnetic moment measurements and electronic and IR spectral data. Based on physico- chemical studies, an octahedral geometry was assigned for all the complexes and the ligand (TCH) acted as neutral bidentate ligand, coordinating via the carbonyl oxygen and the amino nitrogen atoms.