Spectral Studies of Co(II), Ni(II) and Cu(II) Complexes with o-(bis-Acetylacetonato) Phenylene Diamine

Abstract

A series of the complexes of the type MLB₂[M = Co(II), Ni(II) and

Cu(II) ions, B = H₂O, pyridine and α-picoline] have been synthesised with

Schiff base as nitrogen and oxygen donor ligands. Characterisation of the

ligand and the complexes has been done on the basis of elemental analysis,

spectral studies, magnetic susceptibility and electrical conductivity measurements.

The ligand has been found to coordinate through two nitrogen

and two oxygen atoms. Since the complexes are found to be octahedral in

nature the remaining two coordination sites of the metal are satisfied by

oxygen of H₂O and nitrogen of nitrogen donor molecules such as pyridine

and α-picoline.