Das, Sinjan ; Ghosh, Saptarshi ; Chattopadhyay, Nitin (2016) Unprecedented high fluorescence anisotropy in protic solvents: hydrogen bond induced solvent caging? Chemical Physics Letters, 644 . pp. 284-287. 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.2015.12.015
Abstract
Atypical high fluorescence anisotropy has been revealed in protic solvents for excited state intramolecular proton transfer (ESIPT) prone 3-hydroxyflavone and some of its hydroxy derivatives. In non-protic solvents, however, the anisotropy values are low. The low and alike anisotropy values of 3-methoxyflavone in all the studied solvents and other experimental evidences ascribe the formation of hydrogen bond induced cage-like structures in case of the hydroxy compounds involving the probe and the solvent molecules to be responsible for the high values of fluorescence anisotropy in protic media.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 99246 |
| Deposited On: | 28 Jan 2016 05:31 |
| Last Modified: | 28 Jan 2016 05:31 |
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