Synthesis and characterization of Novel Manganese (II), Cobalt (II) and Nickel (II) Schiff bases Complexes of Salen ligand

  • Ghanasham B. Sathe, Santosh S. Marathe, Digambar D. Kulkarni, Manoj N. Lad, Sagar T. Sankpal


Objectives:  Schiff base metal complexes have been studied extensively because of their attractive chemical and physical properties and their wide range of applications in numerous scientific areas.

Methods: Biologically Active C2-symmetric salen base 2-[(E)-N-(2—{[2-[(E)-[(2-hydroxyphenyl) methylildene] amino] phenyl} (methyl) amino} phenyl) carboximidoyl] phenol (HHMCP) have been synthesized. Metal Chelates of HHMCP Manganese (II), Cobalt (II) and Nickel (II) metals have been synthesized and the structures of these chelates have been elucidated by elemental analysis, IR spectroscopy, electronic spectral data, conductometry, Thermogravimetry (TGA) and magnetic susceptibility measurements. Findings: The chelate of Mn (II) and Ni (II) appears to be octahedral and Co (II) appears to be tetrahedral geometry.

Findings: From these studies it is found that the ligands HHMCP act as hexadentate ligand coordinating through oxygen and nitrogen donor atoms.