Cation-anion CH•••O- interactions in the metal-free phenolate, tetra-n-butylammonium phenol-phenolate

被引:40
作者
Goddard, R [1 ]
Herzog, HM [1 ]
Reetz, MT [1 ]
机构
[1] Max Planck Inst Kohlenforsch, D-45470 Mulheim, Germany
关键词
tetra-n-butylammonium phenol-phenolate; ion pair interaction; metal-free phenolate;
D O I
10.1016/S0040-4020(02)00900-6
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Deprotonation of phenol by tetra-n-butylammonium hydroxide and subsequent removal of water by P2O5 results in quantitative formation of tetra-n-butylammonium phenol-phenolate. The compound crystallizes as an ion pair, with the solute phenol molecule intimately attached to the phenolate anion by an O-H...O- hydrogen bond (O...O 2.471(5) Angstrom). A short contact between one alpha-C atom of the tetra-n-butylammonium cation and the phenolate O atom indicates that the ion pair interaction is strengthened by an additional C-H...O- hydrogen-bond, despite the attached phenol. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:7847 / 7850
页数:4
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