Halide recognition by tetraoxacalix[2]arene[2]triazine receptors:: Concurrent noncovalent halide-π and lone-pair-π interactions in host-halide-water ternary complexes

被引：245

作者：

Wang, De-Xian ^{[1
]}

Zheng, Qi-Yu ^{[1
]}

Wang, Qi-Qiang ^{[1
]}

Wang, Mei-Xiang ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, Natl Lab Mol Sci, Beijing 100190, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2008年 / 47卷 / 39期

基金：

中国国家自然科学基金;

关键词：

pi interactions; anion recognition; calixarenes; host-guest systems; noncovalent interactions;

D O I：

10.1002/anie.200801705

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Cleft of center: The self fine-tuning π-deficient cleft of 1,3-dichloro-substituted tetraoxacalix[2]arene[2]triazine forms noncovalent π-halide and π-lone-pair-electron interactions withh alides Cl- and Br-, and water, giving rise to ternary complexes in the solid state (see structure, N blue). In solution, the host molecule, formed by a different mechanism, complexes withfluoride, giving Ka (1:1) of over 4000m-1. (Figure Presented) © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：7485 / 7488

页数：4

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