M.c.d. spectra of Cr(CO)5L (L = piperidine, trimethylamine, pyridine, and pyrazine). Evidence for the nature of the lowest excited ligand field state and for steric and electronic influence of L on the symmetry of the complexes
Abstract
With the use of m.c.d. spectra the nature of the lowest ligand field (LF) excited state of Cr(CO)5L complexes (L = N-donor ligand) is characterized for the first time, which is of importance for understanding the photochemical behaviour of these complexes.