A dinuclear iridium aryldiazenide complex with a η2-η2-N,N′ bridge. Synthesis of [(C5Me5)2Ir2(CO)2(µ2-η2-NNC6H4OMe)][BF4] from [(C5Me5)Ir(C2H4)(N2C6H4OMe)][BF4]

Abstract

[(C₅Me₅)Ir(C₂H₄)(p-N₂C₆H₄OMe)][BF₄], 2 and the nitrosyl analogue [(C₅Me₅)Ir(C₂H₄)(NO)][BF₄], 3 have been synthesized from (C₅Me₅)Ir(C₂H₄)₂, 1 and [p-N₂C₆H₄OMe][BF₄] or [NO][BF₄]; 2 reacts with (C₅Me₅)Ir(CO)₂ to give the title dinuclear complex, 4 in which the aryldiazenide ligand bridges in the four-membered dimetalladiaza-ring fashion.