Aryldiazenido, aryldiazene, and arylhydrazido complexes. Further studies of ortho-metalated iridium complexes derived from reactions of aryldiazonium ions with IrH(CO)(PPh3)3 and IrH(CO)2(PPh3)2

• Published in: Journal of organometallic chemistry Vol. 244; no. 1; pp. 73 - 86
• Main Authors: Carroll, James A., Sutton, Derek, Xiaoheng, Zhang
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.03.1983
• ISSN: 0022-328X; 1872-8561
• DOI: 10.1016/S0022-328X(00)98634-0

The syntheses are described of ortho-metalated iridium arylhydrazido complexes [Ir(NHNHC6H3X)(CO)(PPh3)2]BF4, where X = H, 4-F, 3-F, 2-F, 4-OMe, 2-OMe, 2-NO2, 3-NO2, 3-CH3, 4-CH3 and 2-CF3 from the reactions of the corresponding arenediazonium tetrafluoroborates with IrH(CO)(PPh3)3 or IrH(CO)2(PPh3)2. A high-yield synthesis of the 2-NO2 complex from the diazonium salt and IrCl(CO)(PPh3)2 is also reported, and this complex has been the subject of a multinuclear (1H, 13C, 31P, 15N) NMR study. Oxidation of these arylhydrazido complexes to ortho-metalated aryldiazene complexes [Ir(NHNC6H3X)(Y)(CO)(PPh3)2]BF4, where Y = F, FBF3, Cl, Br or I occurs with air and halogens.