Anisotropic ligand polarization contributions to the Laporte-forbidden transition probabilities of open-shell metal complexes

Abstract

The inclusion of ligand polarizability components making up the symmetric anisotropy tensor α⁽²⁾ in the ligand polarization analysis of the d-d or f-f transition probabilities of open-shell metal coordination compounds is found to account for the known cases where the corresponding mean polarizability approximation fails. For a given point group symmetry of the metal complex, the addition of the ligand polarizability anisotropy to the dynamic coupling treatment generates the number of intensity parameters required group theoretically for a given multipole transition of the metal ion.