Electronic transitions in chromium(III) complexes—IV radiative and non-radiative transition probabilities

Abstract

The luminescence quantum yields and lifetimes of a group of Cr(III) complexes have been measured. The variation in the 2 E→ 4 A 2 quantum yield is largely due to the change in the non-radiative transition probability ( 2 E→ 4 A 2) with ligand. The ligand field theory is adequate for the calculation of the 2 E→ 4 A 2 radiative transition probability in most cases.