Autonomous shuttling driven by an oscillating reaction: proof of principle in a cucurbit [7] uril-Bodipy pseudorotaxane

Date
2013
Authors
Buyukcakir, O.
Yasar, F. T.
Bozdemir, O. A.
Icli, B.
Akkaya, E. U.
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Source Title
Organic Letters
Print ISSN
1523-7060
Electronic ISSN
1523-7052
Publisher
American Chemical Society
Volume
15
Issue
5
Pages
1012 - 1015
Language
English
Type
Article
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Abstract

A bipyridinium dication-substituted Bodipy fluorophore, with a terminal carboxylic acid function, provides two alternative stations for cucurbit[7]uril. Changing pH from basic to acidic results in shuttling of the cucurbit[7]uril from one station to another. In addition, this shuttling is accompanied by a change in the emissive properties of the Bodipy dye, which is only observed in the presence of cucurbit[7]uril. More striking, is a demonstration of autonomous shuttling of the pseudorotaxane system in an oscillating pH system.

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Published Version (Please cite this version)