carbon monoxide; iridium; 1,2,3,4,5-pentamethylcyclopenta-1,3-diene;Iridium, dicarbonyl(pentamethyl-.pi.-cyclopentadienyl)-;Iridium, dicarbonyl-.eta.5-pentamethylcyclopentadienyl-
carbon monoxide; iridium; 1,2,3,4,5-pentamethylcyclopenta-1,3-diene