由非手性两性离子盐形成水合同手性螺旋、晶体的自发手性对称性破缺和氧化还原变色。
The formation of a hydrated homochiral helix from an achiral zwitterionic salt, spontaneous chiral symmetry breaking and redox chromism of crystals.
作者信息
Yao Qing-Xia, Xuan Wei-Min, Zhang Hui, Tu Chao-Yang, Zhang Jie
机构信息
Graduate School of the Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China.
出版信息
Chem Commun (Camb). 2009 Jan 7(1):59-61. doi: 10.1039/b815456b. Epub 2008 Nov 18.
DOI:10.1039/b815456b
PMID:19081998
Abstract
A unique supramolecular helix assisted by water tetramers is obtained by static evaporation of aqueous solution of a zwitterionic salt, 1,1'-bis(4-carboxylatebenzyl)-4,4'-bipyridinium; spontaneous chiral symmetry breaking occurs in crystallization; interestingly, redox chromism behavior of crystals upon exposure to alcohol atmosphere has been observed.
摘要
通过两性离子盐1,1'-双(4-羧基苄基)-4,4'-联吡啶的水溶液静态蒸发得到了一种由四聚水辅助的独特超分子螺旋结构；在结晶过程中发生了自发的手性对称性破缺；有趣的是，观察到晶体在暴露于酒精气氛时具有氧化还原变色行为。
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