Ir(indenyl)(cyclooctadiene); bis(dimethylphosphino)ethane in neat (no solvent) (N2); stirring a mixt. of 1,3-diisopropylbenzene, Ir complex, diphosphine and boron compd. at room temp. for 20 min, heating at 130°C for28 h, cooling to room temp.; pouring into CH2Cl2, filtration through silica pad, washing with CH2Cl2,concn. in vac., distillation of diisopropylbenzene in vac., crystn. (et her, 0°C); elem. anal.;

[Ir2(OMe)2(1,5-cyclooctadiene)2]; 4,4'-di-tert-butyl-2,2'-dipyridyl GloveboxInert atmosphere;