Disrupting Aggregation of Tethered Rhodamine B Dyads through Inclusion in Cucurbit[7]uril
- 27 March 2008
- journal article
- Published by American Chemical Society (ACS) in The Journal of Organic Chemistry
- Vol. 73 (8) , 3266-3269
- https://doi.org/10.1021/jo7026432
Abstract
Hexano- and dodecano-tethered diesters of rhodamine B were prepared. The absorption and fluorescence spectra of these flexibly tethered dyads were compared with those of the rhodamine 3B ethyl ester. Increased J- and H-type dimer formation and decreased fluorescence emission were observed for the tethered dyads. Complexation of the cationic chromophoric units in cucurbit[7]uril (CB7) hosts decreased H-dimer aggregation, especially for the dodecano-tethered dyad. The monomeric dye and both dye dyads exhibited enhanced fluorescence upon addition of CB7.Keywords
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