furnished the known products of a chloride-induced disproportionation reaction of the disilane, such as SiCl4, [Si(SiCl3)3]−, and [Si6Cl12·2Cl]2–. No Si–B-bonded products were detectable. In contrast, the addition of Si2Cl6 to [Et4N][BI3Cl] afforded the Si–B adduct [Et4N][I3SiBI3]. Thus, a quantitative Cl/I exchange at the silicon atom accompanies the trihalogenosilanide formation. [Et4N][I3SiBI3] was
作者:Yu-Liang Shan、Bi-Xiang Leong、Yongxin Li、Rakesh Ganguly、Cheuk-Wai So
DOI:10.1021/acs.inorgchem.6b02727
日期:2017.2.6
Si2I6. Subsequently, compound 2 reacted with [LiN(SiMe3)Ar] to form the silanimine [LSi(I)NSiI2N(SiMe3)Ar] (6, Ar = 2,6-iPr2C6H3), which was then treated with KC8 to give the donor–acceptor stabilized tetra(silanimine) [LSiN(SiMe3)SiNAr]2 (7). It comprises four formal silanimine “>Si═N-” units, which are linked together. Compounds 2, 6, and 7 were characterized by NMR spectroscopy and X-ray crystallography
描述了一种低聚(硅亚胺)的合成。a胺基甲硅烷基[LSiN(SiMe 3)2 ](1,L = PhC(N t Bu)2)与SiI 4在甲苯中的反应得到硅苯胺[LSi(I)NSiI 3 ](2)的混合物, SiMe 3 I和Si 2 I 6。机理研究表明1与SiI 4反应形成甲硅烷基离子中间体“ LSi(I)N(SiMe 3)2 } + SiI 3 } - ”,从而消除了SiMe3 I和“ SiI 2 ”形成硅亚胺中间体“ LSi(I)NSiMe 3 ”。它进一步被另一个SiI 4分子取代以形成2和SiMe 3 I的混合物。此外,“ SiI 2 ”与SiI 4进行氧化加成以形成Si 2 I 6。随后,化合物2与[LiN(SiMe 3)Ar]反应形成硅亚胺[LSi(I)NSiI 2 N(SiMe 3)Ar](6,Ar = 2,6- i Pr 2 C 6 H 3),然后用KC 8处理,得到供体