REACTION OF POWDERED IRIDIUM WITH CHLORINE AND CARBON MONOXIDE: SOME NEW CHLOROCARBONYL DERIVATIVES OF IRIDIUM

Article abstract of DOI:10.1016/S0022-328X(00)99308-2

In a search for better methods of preparing carbonyl compounds of the transition metals the reaction of powdered iridium with carbon monoxide and chlorine under various conditions has been studied.The outcome of the reaction depends on the CO/Cl2 ratio and on the temperature.The iridium(II) complex Ir(CO)2Cl (1) has been isolated, and its reactions with CO, AsPh4Cl, PPh3 and Cl^- ions examined.The anion (IrCOCl4>^- has been isolated as its caesium and bis(triphenylphosphine)iminium salts, and the complex Ir2(CO)4Cl6 has been identified by mass spectrometry.