Iridium(III) molecular catalysts for water oxidation: the simpler the faster

摘要

We report on three Ir(III) molecular catalysts for water oxidation: 1, [Cp~*Ir(ppy)Cl]; 2, ICp~*Ir(bzpy)NO_3]; 3, [Cp~*Ir(H_2O)_3](NO_3)_2. 2 and 3 are water-soluble and show a long-term activity ca. 2 and 3 times higher than 1. It is remarkable that 3, having the simplest structure, is the catalyst with the highest activity.