中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (2,4,6-trimethylphenyl)silane | 120578-34-9 | C9H14Si | 150.296 |
Treatment of a variety of alkyl- and arylsilanes, R4-nSi(C≡C-R′)n, and -germanes, R4-nGe(C≡C-R′)n (1-7), with equimolar quantities of the dialkylmetal hydrides HMR″ 2 (M = Al, Ga; R″ = CMe3, CH2CHMe2) yielded by reduction of a single alkynyl group a series of mixed alkenyl-alkynyl compounds R4-nSi(C≡C-R′)n-1C(MR″2) =CHR′} (n = 2, 3) and R2Ge(C≡C-R′)C[M(CMe3)2]=CHR′} (8-13). Reactions with two equivalents of the hydrides afforded the dialkenyl compounds R2EC[(M(CMe3)2]=CHR′}2 (E = Si, Ge, 14-17), Ge(C≡C- CMe3)2C[Ga(CMe3)2]=CH-CMe3}2 (18) and MeSi(C≡C-p-Tol)C[Ga(CMe3)2]=CH-p-Tol}2 (19) [R = Ph, Mes, Me, C6F5; R′ = CMe3, Ph). Most of the products were characterised by Xray crystallography which for the alkenyl-alkynyl derivatives revealed short intramolecular contacts between the coordinatively unsaturated metal atoms and the a-C atoms of unreacted ethynyl groups Cα≡C-R′.
The trifunctional silylamine MesSi(NHPh)3(Mes: 2,4,6-trimethylphenyl) was prepared by standard methods from MesSiCl3and LiNHPh. Lithiation of MesSi(NHPh)3and subsequent reaction with copper(I) benzoate afforded the nonanuclear cluster complex [Cu9MesSi(NPh)3}2(PhCO2)3]·2toluene. The cluster core consists of three copper atoms which are coordinated almost linearly by the nitrogen atoms of two adjacing MesSi(NPh)3units. Additionally, each of the silylamide nitrogen atoms is connected to a peripheral copper atom and the peripheral copper atoms are linked by