Mondal, Sudip Kumar ; Sahu, Kalyanasis ; Sen, Pratik ; Roy, Durba ; Ghosh, Subhadip ; Bhattacharyya, Kankan (2005) Excited state proton transfer of pyranine in a γ-cyclodextrin cavity Chemical Physics Letters, 412 (1-3). pp. 228-234. ISSN 0009-2614
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.cplett.2005.07.001
Abstract
Excited state proton transfer of pyranine (8-hydroxypyrene-1,3,6-trisulfonate, HPTS) in γ-cyclodextrin (γ-CD) is studied using picosecond and femtosecond fluorescence spectroscopy. It is shown that confinement of pyranine in γ-CD cavity accelerates recombination of the geminate ion pair and slows down the initial proton transfer step and the dissociation of the geminate ion pair. This results in enhanced emission from the protonated species.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 77141 |
| Deposited On: | 10 Jan 2012 05:52 |
| Last Modified: | 10 Jan 2012 05:52 |
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