A Polyrotaxane Series Containingα-Cyclodextrin and Naphthalene-Modifiedα-Cyclodextrin as a Light-Harvesting Antenna System
- 16 March 2001
- journal article
- research article
- Published by Wiley in Chemistry – A European Journal
- Vol. 7 (7) , 1390-1397
- https://doi.org/10.1002/1521-3765(20010401)7:7<1390::aid-chem1390>3.0.co;2-l
Abstract
Supramolecular light-harvesting antenna systems were constructed by using polyrotaxanes, in which cyclodextrin (CD) rings of α-CD and naphthalene (energy donor)-appended α-CD are threaded by a poly(ethylene glycol) chain with anthracene (energy acceptor) units at both ends (5–8). The effects of the component ratio of the polyrotaxanes on the efficiencies of energy migration and energy transfer were examined by fluorescence emission and excitation spectra and anisotropy and by fluorescence decay measurements. The observed results were explained by using the Förster mechanism.Keywords
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