Preparation and x-ray crystal and molecular structure of μ-sulfurdioxidebis(hydridodicarbonyltriphenylphosphineiridium)

The preparation and the spectra of Ir2 (CO)4 (PPh3)2 (SO2)2 and of the title compound are reported; in the molecular structure of the latter, determined by X-ray crystallographic analysis, there is a relatively long IrIr bond which is accounted for in terms of the acidic nature of SO2