Tri­methyl­phospho­nium trans-tetra­chlorido­bis­(tri­methyl­phosphane-κP)iridate(III)

The title compound, [HP(CH₃)₃][IrCl₄{(H₃C)₃P}₂], consists of a tri­methyl­phospho­nium cation and a tetra­chlorido­bis­(tri­methyl­phosphane)iridate(III) anion. The anion has an octa­hedral arrangement of ligands, with the tri­methyl­phosphane groups occupying trans positions. The Ir^III atom sits on an inversion center with one P(CH₃)₃ ligand and two chloride ligands in the asymmetric unit. The tri­methyl­phospho­nium cation is disordered about a twofold rotation axis. The title compound is the first structurally characterized tetra­chlorido­bis­(phosphane)iridate complex.