Pal, Samir Kumar ; Sukul, Dipankar ; Mandal, Debabrata ; Sen, Sobhan ; Bhattacharyya, Kankan (2000) Solvation dynamics of coumarin 480 in sol-gel matrix Journal of Physical Chemistry B, 104 (12). pp. 2613-2616. ISSN 1089-5647
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Official URL: http://pubs.acs.org/doi/abs/10.1021/jp993484y?prev...
Related URL: http://dx.doi.org/10.1021/jp993484y
Abstract
Solvation dynamics of Coumarin 480 (C-480) in a tetraethyl orthosilicate (TEOS) sol-gel matrix has been studied using time-resolved emission spectroscopy. In the macroscopically solid TEOS matrix the solvation dynamics of C-480 is described by a major (85%) component of 120 ± 20 ps and a minor (15%) component of 800 ± 100 ps. These components are substantially slower than the solvation dynamics in bulk water. The rotational relaxation time of C-480 in this matrix is found to be very short (<80 ps).
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| ID Code: | 5356 |
| Deposited On: | 18 Oct 2010 08:57 |
| Last Modified: | 11 May 2012 10:27 |
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