Reactions of silanes and germanes with iridium complexes. Part 3. Reactions of some silyl derivatives of O, S, Se, N, and P with trans-carbonyliodobis(triethylphosphine)iridium(I)
Abstract
The title complex, trans-[Ir(CO)l(PEt3)2], (1), reacts with Y(SiH3)2(Y = O, S, or Se) in benzene to give [Ir(CO)Hl(PEt3)2(SiH2YSiH3)] or [{Ir(CO)Hl(PEt3)2(SiH2)}2Y], although when Y = O the formation of the former species is difficult to detect. Reaction between (1) and P(SiH3)3 leads to the formation of [Ir(CO)Hl(PEt3)2{SiH2P(SiH3)2}], [{Ir(CO)Hl(PEt3)2(SiH2)}2PSiH3], or [{Ir(CO)Hl(PEt3)2(SiH2)}3P], depending on the proportions of the reactants taken. Reaction between (1) and N(SiH3)3 gives [Ir(CO)Hl(PEt3)2{SiH2N(SiH3)2}] and [{Ir(CO)Hl(PEt3)2(SiH2)}2NSiH3], but no tris(iridiosilylamine) was detected. The compounds have been characterised by 1H and 31P n.m.r. spectroscopy and in some cases by analysis.