Hydridoalkoxycarbonyl complexes of iridium

Abstract

The synthesis of the cationic complex [Ir(CO)(dmpe)₂]⁺(dmpe = Me₂P·CH₂·CH₂·PMe₂) and its reaction with alcohols to form a novel group of hydridoalkoxycarbonyl complexes of iridium(III) of the type [IrH(CO₂R)(dmpe)₂]⁺(R = Me or Et) is described. Further reactions of the hydridoalkoxycarbonyl cation to give complexes of the types [IrHCl(dmpe)₂]⁺ and [IrH(CO)(dmpe)₂]²⁺ are also reported. The origin of the unique hydrogen atom has been determined, and tentative structures deduced from spectroscopic measurements have been assigned.