Interactions of chloromethyldisilanes with tetrakis(dimethylamino)ethylene (TDAE), formation of [TDAE]+ [Si3Me2Cl7]−
作者:C Knopf、U Herzog、G Roewer、E Brendler、G Rheinwald、H Lang
DOI:10.1016/s0022-328x(02)01856-9
日期:2002.11
alkene tetrakis-(dimethylamino)-ethylene (TDAE) in n-hexane as well as in polar solvents. While 1 gave no reaction at all, 3 underwent a disproportionation reaction into SiCl4 and Si(SiCl3)4. Also 2 and mixtures of 2 and 4 were disproportionated into MeSiCl3 (2a) and methylchlorooligosilanes. Additionally a crystalline mixture of Si3Me3Cl6·TDAE (5a) plus Si3Me2Cl7·TDAE (5b) was obtained by reaction of
所述chlorodisilanes SiClMe 2 SiClMe 2(1),的SiCl 2 MeSiCl 2我(2),的SiCl 3 SiCl 3(3为1:1的混合物)和一个9 2和的SiCl 3 SiCl 2我(4)反应与富电子烯烃四- (二甲基氨基) -乙烯(TDAE)在ñ -己烷以及在极性溶剂中。尽管1没有反应,但3发生了歧化反应,形成SiCl 4和Si(SiCl 3)4。同样,2以及2和4的混合物也歧化为MeSiCl 3(2a)和甲基氯代低聚硅烷。另外Si的结晶混合物3我3氯6 ·TDAE(图5a)加上的Si 3我2氯7 ·TDAE(图5b为1:1的混合物用9的反应获得)2和4与TDAE在Ñ己烷以及如在1,2-二甲氧基乙烷中。2与TDAE在乙腈(MeCN)中的反应导致[TDAE] Cl的晶体沉淀除MeSiCl 3和甲基氯代低聚硅烷外,还包括2 ·MeCN(6 ·MeCN)。通过X射线晶体学测定5b和6