Ligand substitution in the heterometallic cluster Cp*IrOs3(μ-H)2(CO)10

The ligand substitution reactions of the heterometallic cluster Cp*IrOs3(μ-H)2(CO)10 with phosphines, isonitriles and pyridine under TMNO activation afforded the substitution products Cp*IrOs3(μ-H)2(CO)10 − nLn (n = 1, 2; L = PPh3, P(OMe)3, tBuNC, CyNC or py) in good yields. The solid-state structures and solution structures of these have been investigated.