Hydrogenation and isomerisation of alkenes using IrCl(PPh3)2 and the isolation of the oxygen adduct IrCl(PPh3)2(O2)-(C2H4),C6H6.

Abstract
IrCl(PPh3)2, prepared in situ, has been found to be a catalyst for the hydrogenation and isomerisation of alkenes; with molecular oxygen IrCl(PPh3)2(C2H4) forms in benzene the five-co-ordinated adduct IrCl(PPh3)2(O2)(C2H4),C6H6.