Synthesis and Physicochemical Studies of Mixed Ligand Complexes of Mn(II), Fe(III), Co(II), Ni(II) and Cu(II) with Acetophenone Semicarbazone and Acetone Semicarbazone

Abstract

The mixed ligand complexes of the type (M(L 1)(L 2))Cl 2 (where M= Mn (II),Fe(III),Co(II), Ni(II) and Cu(II) and L1 = Acetophenone semicarbazone, L 2=Acetone semicarbazone) have been synthesized by the reactions of metal chlorides with two different semicarbazone compounds in 1:1:1 molar ratios. The resulting complexes have been characterized on the basis of elemental analysis, magnetic measurement, IR and electronic spectra, conductivity measurement. The metal complexes shows ratio 1:1:1 with metal, ligand L 1 and ligand L 2.The ligands acts as bidentate ligands and are bonded through oxygen and nitrogen to metal ion. The two co-ordination positions are occupied by two water molecules. The complexes have octahedral structure.