The structure of the H3O+ hydronium ion in benzene

被引:38
作者
Stoyanov, ES [1 ]
Hoffman, SP
Kim, KC
Tham, FS
Reed, CA
机构
[1] Univ Calif Riverside, Dept Chem, Riverside, CA 92521 USA
[2] Boreskov Inst Catalysis, Novosibirsk 630090, Russia
关键词
D O I
10.1021/ja050401k
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Infrared, X-ray structural, 1H NMR, and computational evidence for π-solvation of H3O+ by benzene molecules is presented. A salt with a discrete [H3O·3benzene]+ cation can be isolated using a very weakly interacting carborane counterion, CHB11Cl11-. π-Arene solvation of H3O+ explains the solubility of this salt in benzene solution. Similar results are indicated for the Zundel-type" H5O2+ ion. These findings suggest structures for the active protonating species when strong acids are used as catalysts in arene solvents containing trace water. They are also relevant to structures that may be present in biological proton transport. Copyright © 2005 American Chemical Society."
引用
收藏
页码:7664 / 7665
页数:2
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