Direct syntheses and complete characterization of halide-free tetrakis(dialkylamino)silanes

被引：2

作者：

Banerjee, Chiranjib

Wade, Casey R.

Soulet, Axel

Jursich, Gregory

McAndrew, James

Belot, John A.

机构：

[1] Amer Air Liquide, Countryside, IL 60525 USA

[2] Univ Nebraska, Dept Chem, Lincoln, NE 68588 USA

[3] Univ Nebraska, Ctr Mat Res & Anal, Lincoln, NE 68588 USA

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2006年 / 9卷 / 07期

基金：

美国国家科学基金会;

关键词：

silicon; amine; precursor; volatile; halide;

D O I：

10.1016/j.inoche.2006.04.027

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Tetrakis(dialkylamino)silanes of the general formula Si(NRR')(4) (R = R' CH3, CH2CH3, or R not equal R'= CH3 and CH2CH3) were prepared as halide-free, analytically pure compounds whose volatility scales with alkyl group size. The successful syntheses relied on the heavier silicon halides, SiBr4, and SiI4. In the case of SiBr4 incomplete amination with amines bulkier than dimethylamine ultimately led exclusively to BrSi(NR2)(3), whereas SiI4 starting material afforded only homoleptic Si(NR2)(4) whose complete characterization is presented. The tetrakis(dialkylamino)silanes failed to react with alcohols, even at elevated temperatures, and only slowly hydrolyze. (C) 2006 Elsevier B.V. All rights reserved.

引用

页码：761 / 763

页数：3

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