Evidence for C-H Hydrogen Bonding in Salts of tert-Butyl Cation

被引：15

作者：

Stoyanov, Evgenii S. ^{[1
]}

Stoyanova, Irina V. ^{[1
]}

Tham, Fook S. ^{[1
]}

Reed, Christopher A. ^{[1
]}

机构：

[1] Univ Calif Riverside, Dept Chem, Ctr S&P Block Chem, Riverside, CA 92521 USA

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2012年 / 51卷 / 36期

基金：

美国国家科学基金会; 美国国家卫生研究院;

关键词：

carborane anions; hydrogen bonding; hyperconjugation; infrared spectroscopy; tert-butyl cations; STABLE CARBONIUM-IONS; PHASE;

D O I：

10.1002/anie.201203958

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Environmentally sensitive: A combination of C-H⋯·anion hydrogen bonding and hyperconjugative charge delocalization explains the sensitivity of the IR spectrum of the tert-butyl cation to its anion (see high-resolution X-ray structure with a CHB11Cl11 - counterion). The νCH vibration of the cation scales linearly with the basicity of carborane anions on the νNH scale. The same also holds for the C6H7+ benzenium ion. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：9149 / 9151

页数：3

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