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metal-organic compounds
The title compound, [IrCl(C3H5O)(C5H4NO){(C3H7)3P}2], is a mononuclear complex of a chelated 2(1H)-pyridinone anion, exhibiting a slightly distorted octahedral geometry. The monohapto carbon-bound propionyl ligand and the O atom of the dihapto pyridinonato ligand are mutually trans, and the phosphine ligands tilt away from the propionyl ligand towards the O atom of the heterocyclic ligand. The Ir-O bond length is unusually long for a complex of 2(1H)-pyridinone, a circumstance attributed to the strong trans influence of the acyl ligand.