New triosmium-iridium clusters: Synthesis and molecular structure of [Os3Ir2(Cp∗)2(μ-OH)(μ-CO)2(CO)8Cl] (1), [Os3IrCp∗(μ-OH)(CO)10Cl] (2), [Os3IrCp∗(μ-H)(μ-Cl)(η3,μ3-C5H2N(NH2)Br)(CO)9] (3) and [Os3IrCp∗(μ-Cl)2(η2,μ3-C5H3N(NH)Br)(CO)7] (

Two new osmium-iridium clusters have been synthesized by reaction between [Os3(CO)10(MeCN)2] and [IrCp∗Cl2]2,[Os3Ir2(Cp∗)2(μ-OH)(μ-CO)2(CO)8Cl] (1) and [Os3IrCp∗(μ-OH)(CO)10Cl] (2). By adding a pyridyl ligand, another two new clusters were afforded with different coordination of the ligand, [Os3IrCp∗(μ-H)(μ-Cl)(η3,μ3-C5H2N(NH2)Br)(CO)9] (3) and [Os3IrCp∗(μ-Cl)2(η2,μ3- C5H3N(NH)Br)(CO)7] (4).