Transition metal–carbon bonds. Part VIII. Methyl derivatives of iridium(III) containing dimethylphenylphosphine or dimethylphenylarsine as ligands

Abstract

Methyliridium(III) complexes of the type [IrX_x(Me)_3–xL](X = halogen; x= 0–2; L = PMe₂Ph or AsMe₂Ph) are described. The methyl resonance patterns in the nuclear magnetic resonance spectra are very useful in assigning stereochemistries. Some dipole moments are given and discussed. Values of (1) methyl deformation frequencies (δ_Me) for the iridium-bonded methyls, (2) iridium–carbon stretching frequencies, and (3) iridium–chlorine stretching frequencies are given and discussed.