A Radical Approach to Hydroxylaminotrichlorosilanes: Synthesis, Reactivity, and Crystal Structure of TEMPO‐SiCl
<sub>3</sub>
(TEMPO = 2,2,6,6‐Tetramethylpiperidine‐
<i>N</i>
‐oxyl)
作者:Spirk Stefan、Ferdinand Belaj、Tobias Madl、Rudolf Pietschnig
DOI:10.1002/ejic.200900969
日期:2010.1
The reaction of the nitroxy radical 2,2,6,6-tetramethylpiperidine-N-oxyl (TEMPO) with SiCl 4 has been investigated in detail. One silicon-containing product, TEMPO-SiCl 3 (1), could be isolated in crystalline form, and its crystal structure was determined. The structural parameters have been compared with the related hydroxylaminotrichlorosilane known from the literature and with DFT calculations.
已经详细研究了硝氧基自由基 2,2,6,6-四甲基哌啶-N-氧基 (TEMPO) 与 SiCl 4 的反应。一种含硅产物TEMPO-SiCl 3 (1) 可以以晶体形式分离出来,并确定了其晶体结构。已将结构参数与文献中已知的相关羟基氨基三氯硅烷和 DFT 计算进行了比较。根据计算,1 的形成遵循 SN 2 机制,这在热力学上优于 SN 1 途径。水解后,1 分解并产生几种含有 TEMPO 的物质。这些都是晶体学表征的。