Charge‐transfer intensity in complexes with symmetrically equivalent acceptors

Abstract

Abstract Mulliken's model for the intensity of charge‐transfer absorption bands in donor/acceptor complexes is extended to transition‐metal compounds. Attention is focused on the analysis of systems containing a central metal ion and symmetrically equivalent π‐acceptor ligands. The theory is illustrated for a one‐donor/two‐acceptor complex in D 2 d point symmetry. Results are stated for symmetries of commonly occurring transition‐metal compounds that display well‐documented metal‐to‐ligand charge‐transfer transitions.