Photo-Induced Switchable Binding Behavior of Bridged Bis(β-cyclodextrin) with an Azobenzene Dicarboxylate Linker |
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| Authors: | Yu Liu Shu Kang Yong Chen Ying-Wei Yang Jurriaan Huskens |
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| Affiliation: | (1) Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, 300071 Tianjin, P.R. China;(2) Laboratory of Supramolecular Chemistry and Technology and Strategic Research Orientation “Nanofabrication”, MESA+ Institute for Nanotechnology, University of Twente, 217, 7500 AE Enschede, The Netherlands |
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| Abstract: | ![]()
A bridged bis(β-cyclodextrin) (1) with an azobenzene dicarboxylate linker was synthesized, and its binding behavior with a fluorescent dye, acridine red (AR), was investigated by means of fluorescence spectroscopy. Due to the photo-induced conversion of the azobenzene dicarboxylate linker from the trans-conformer to the cis-conformer, 1 exhibits a different binding behavior before and after UV light irradiation, giving a stronger binding ability towards AR in the cis form. This switchable binding behavior of 1 may open a new channel to the design of azobenzene-linked dimeric receptors as photo-induced molecular devices. |
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| Keywords: | azobenzene bridged bis(cyclodextrin) photoisomerization switchable binding behavior |
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