Synthesis and Spectroscopic Investigation of Metal Chelates of Hydrazo Pyrazolone Derivative

Abstract

A new series of Co(III) and Ni(II) complexes of N-(3-methyl-1-thiocarbamoyl-5-oxo-2-pyrazoline-4-ylene)-N'-(2'-hydroxyphenyl)hydrazine were synthesized. Metal chelates were characterized by elemental analysis, IR and electronic spectral data, molar conductance and magnetic moment measurements. In all the metal complexes the ligand acts as monoanionic tridentate. On the basis of physico-chemical studies, Ni(II) complexes have assigned tetrahedral structure while octahedral stereochemistry is assigned to Co(III) chelates.