Characterisation of Mixed Ligand Complexes of Cobalt(II) and Nickel(II) with Diphenic Acid As Primary and Heterocyclic Bases as Secondary Ligands

Abstract

The mixed ligand complexes of Co(II) and Ni(II) with diphenic acid as primary and quinoline, isoquinoline, pyridine, 8-hydroxy quinoline and 2-amino pyridine as secondary ligands were prepared and characterised on the basis of elemental analysis, conductivity measurements, magnetic, infra-red and electronic spectral studies. The complexes of Co(II) with quinoline and pyridine were octahedral, with 8-hydroxy quinoline and 2-amino pyridine were tetrahedral and with isoquinoline was square planar. The NI(II) complexes were octahedral except for that with isoquinoline which was square planar.