Proton-Catalyzed Hydrogenation of a d~8 Ir(I) Complex Yields a trans Ir(III) Dihydride

摘要

Square-planar d~8 iridium(I) complexes, including the iconic Vaska's complex, trani-IrCl(CO)[P(C_6H_5)_3]_2, have been used to explore a wide range of oxidative addition reactions of d transition-metal complexes. These studies have established a range of mechanisms, including concerted cleavage of nonpolar substrates, stepwise addition of polar substrates, and radical chain reactions of certain RX substrates.