Quantum yields for the photoaquation reactions of [Ru(NH3)5(py)]2+ and related complexes: an unusual dependence on acid conventration

Abstract

The quantum yield for pyridine displacement by aquation from [Ru(NH₃)₅(py)]²⁺ on irradiation at the metal-to-ligand charge-transfer band is a function of the solution pH indicating competitive acid-dependent and acid-independent reactions of a short-lived intermediate or excited state.