Hydrogen selenide in M-Se and C-Se bond formation. [Cp*3Ir3Se2]2+ clusters: New synthesis, molecular and electronic structure and related studies

Reaction of [Cp*IrCl2]2 with in situ generated H2Se gives triangular cluster [Cp*3Ir3Se2]2+ which was isolated and characterized as new [Cp*3Ir3Se2](BF4)2 and [Cp*3Ir3(μ3-Se)2][ZnCl3(MeOH)]2·MeOH complexes, which were characterizes by X-ray, ESI-MS, 77Se NMR techniques. Quantum-chemical calculations show the presence of Ir-Ir bonds inside the trinuclear cluster core.