Photoswitchable Supramolecular Catalysis by Interparticle Host-Guest Competitive Binding

被引：51

作者：

Zhu, Liangliang ^{[1
]}

Yan, Hong ^{[1
]}

Ang, Chung Yen ^{[1
]}

Kim Truc Nguyen ^{[1
]}

Li, Menghuan ^{[2
]}

Zhao, Yanli ^{[1
,2
]}

机构：

[1] Nanyang Technol Univ, Div Chem & Biol Chem, Sch Phys & Math Sci, Singapore 637371, Singapore

[2] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2012年 / 18卷 / 44期

基金：

新加坡国家研究基金会;

关键词：

azo compounds; cyclodextrins; gold nanoparticles; photoisomerization; supramolecular chemistry; CYCLODEXTRIN DIMER CATALYST; REVERSIBLE IMMOBILIZATION; GOLD NANOPARTICLES; ESTER HYDROLYSIS; AZOBENZENE; CONSTRUCTION; AGGREGATION; SEPARATION; ASSEMBLIES; COMPLEX;

D O I：

10.1002/chem.201202711

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

On and off: Ester hydrolysis catalyzed by a Zn II-coordinated β-cyclodextrin dimer can be switched on and off using light in the presence of gold nanoparticles with azobenzene units attatched to their surfaces. Under visible light, the azobenzene units are trans and bind tightly to the dimer, thus leading to reduced catalysis. Under UV light, the azobenzene units are cis and bind loosely to the dimer, thus allowing substrates to bind and hydrolysis to occur. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：13979 / 13983

页数：5

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