Acid/Base- and Anion-Controllable Organogels Formed From a Urea-Based Molecular Switch

被引：96

作者：

Hsueh, Sheng-Yao ^{[1
]}

Kuo, Chun-Ting ^{[1
]}

Lu, Tsan-Wen ^{[1
]}

Lai, Chien-Chen ^{[2
,3
]}

Liu, Yi-Hung ^{[1
]}

Hsu, Hsiu-Fu ^{[4
]}

Peng, Shie-Ming ^{[1
]}

Chen, Chun-hsien ^{[1
]}

Chiu, Sheng-Hsien ^{[1
]}

机构：

[1] Natl Taiwan Univ, Dept Chem, Taipei 10617, Taiwan

[2] Natl Chung Hsing Univ, Inst Mol Biol, Taichung 40227, Taiwan

[3] China Med Univ, Grad Inst Chinese Med Sci, Taichung, Taiwan

[4] Tamkang Univ, Dept Chem, Tamsui 25137, Taiwan

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2010年 / 49卷 / 48期

关键词：

host-guest chemistry; molecular recognition; molecular switches; organogels; rotaxanes; RECOGNITION; ASSEMBLIES;

D O I：

10.1002/anie.201004090

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A switch in time: Gel-sol transitions of a urea-based [2]rotaxane gelator are controlled by the degree of solvent exposure of the hydrogen-bond-donating urea station and the orientation of the hydrogen-bond-accepting C=O groups of the interlocked ethylene glycol based macrocycle (N blue, O and macrocycle red, phenyl green). Both acid/base and anion-exchange control can be used to reversibly transition the rotaxane in 1-pentanol between solution and gel states. Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：9170 / 9173

页数：4

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