螺旋度
高分子
对映选择合成
聚合物
超分子化学
同手性
胺气处理
化学
分子
化学物理
结晶学
组合化学
立体化学
有机化学
对映体
物理
生物化学
粒子物理学
催化作用
作者
Eiji Yashima,Katsuhiro Maeda,Yoshio Okamoto
出处
期刊:Nature
[Springer Nature]
日期:1999-06-01
卷期号:399 (6735): 449-451
被引量:722
摘要
The helicity of biological macromolecules such as DNA and proteins is largely governed by the homochirality of their components (D-sugars and L-amino acids). In polymer and supramolecular chemistry, control of helicity is an attractive goal because of possible applications in materials science, chemical sensing and enantioselective catalysis1,2,3,4,5,6,7,8,9,10,11,12,13. We reported recently that macromolecular helicity can be induced in a polymer by an optically active amine14. Here we show that this helicity can be ‘memorized’ when the amine is replaced by various achiral amines. Although the maintenance of helicity in the polymer is not perfect, it can ‘repair’ itself over time. Small structural changes in the achiral amines influence the efficiency of helicity retention markedly.
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