An infrared and electronic spectroscopic study of a series of nickel(II) amine complexes

Abstract

Qualitative infrared and electronic spectroscopic data for a series of nickel(II) amine complexes suggest structures involving octahedral (transtetragonal) symmetry and associated with varying degrees of cation-anion interaction. N-methyl ligand substituents contribute significantly to ligand conformations, complex symmetry, and cation-anion steric interactions. From the electronic data, the parameters Dq, B′, C, C/B′, β35, and Z* are determined for each complex and a spectrochemical and nephelauxetic series is proposed for the associated amine ligands. © 1991 Springer-Verlag.