Photochemical Control of Reversible Encapsulation

Remote control: Molecules can be transferred in a chemical system between capsules and bulk solution by using light and heat. The principle is based on the isomerization of azobenzene, the trans isomer of which is encapsulated, but the cis isomer is not (see picture; C gray and brown, Br mauve; O re...

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Bibliographic Details
Published in:Angewandte Chemie (International ed.) 2010-04, Vol.49 (18), p.3192-3195
Main Authors: Dube, Henry, Ajami, Dariush, Rebek, Julius Jr
Format: Article
Language:English
Subjects:
Azo Compounds - chemistry
azobenzenes
Crystallography, X-Ray
encapsulation
host-guest chemistry
Light
Models, Molecular
Photochemistry
photoisomerization
Stereoisomerism
supramolecular chemistry
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Summary:Remote control: Molecules can be transferred in a chemical system between capsules and bulk solution by using light and heat. The principle is based on the isomerization of azobenzene, the trans isomer of which is encapsulated, but the cis isomer is not (see picture; C gray and brown, Br mauve; O red, N blue, H white). The photochemical control can also be used to switch between different capsular assemblies.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201000876