Dual memory of enantiomeric helices in a polyacetylene induced by a single enantiomer

被引：115

作者：

Miyagawa, T

Furuko, A

Maeda, K

Katagiri, H

Furusho, Y

Yashima, E

机构：

[1] Japan Sci & Technol Agcy, JST, ERATO, Yashima Superstruct Helix Project,Moriyama Ku, Nagoya, Aichi 4630003, Japan

[2] Nagoya Univ, Grad Sch Engn, Dept Mol Design & Engn, Nagoya, Aichi 4648603, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2005年 / 127卷 / 14期

关键词：

D O I：

10.1021/ja0509634

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report the dual memory of both the enantiomeric right- and left-handed helical conformations induced in a polyacetylene based on the temperature-stimulated helicity inversion of the polymer. The polyacetylene folds into a one-handed helix induced by noncovalent bonding interactions with a single enantiomeric amine. The induced helix underwent a reversible inversion of the helicity by temperature. The diastereomeric right- and left-handed helices obtained at different temperatures could be further memorized when the optically active amine was replaced by an achiral diamine, generating right- and left-handed helices of the mirror images of each other. Consequently, both enantiomeric helices can be produced with a high efficiency from dynamically diastereomeric helical polyacetylenes induced by a single enantiomer. Copyright © 2005 American Chemical Society.

引用

页码：5018 / 5019

页数：2

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