Synthesis and structures of lithium alkoxytris(dimethylphenylsilyl)borates

Synthesis and structures of lithium alkoxytris(dimethylphenylsilyl)borates
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烷氧基三(二甲基苯基甲硅烷基)硼酸锂的合成与结构

DOI：
10.1039/c7dt00395a
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发表时间：
2017
期刊：
Dalton Trans.
影响因子：
--
通讯作者：
Soichiro Kyushin
Soichiro Kyushin
中科院分区：
--
文献类型：
--
作者：
Akihiro Tsurusaki;Keisuke Yoshida;Soichiro Kyushin

文献摘要

相似文献

三烷基硼酸酯B(OR)3(R=Me，i-Pr)与二甲基苯基硅基锂反应生成烷氧基三(二甲基苯基硅基)硼酸锂1a，b。X-射线单晶分析表明，1a，b分别以接触离子对和溶剂分离离子对的形式存在。1a、b及相关化合物的11B和29Si化学位移以及Si-B和B-O键长随硅基和烷氧基取代基数的不同而发生很大变化。
The reactions of trialkyl borates B(OR)3 (R = Me, i-Pr) with dimethylphenylsilyllithium gave lithium alkoxytris(dimethylphenylsilyl)borates 1a,b. X-ray crystallographic analysis showed that 1a,b were obtained as a contact ion pair and a solvent-separated ion pair, respectively. The 11B and 29Si chemical shifts as well as the Si–B and B–O bond lengths of 1a,b and related compounds largely change, depending on the numbers of silyl and alkoxy substituents.