| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5404061 | Journal of Luminescence | 2006 | 9 Pages |
Abstract
Fluorescence quenching of 3,7-diamino-2, 8-dimethyl-5-phenylphenazinium chloride (safranine T (ST)) by halides and pseudo halides in binary solvent mixtures was investigated by steady-state fluorescence spectroscopy. Several parameters, such as dielectric constant, viscosity coefficient, ET30 and fluorescence quantum yield have been investigated as a function of solvent compositions. In mixed solvents ST has been used as a probe for studying the microheterogenity of the mixture. The preferential solvations around ST in the excited state were determined. The Stern-Volmer quenching constants at different compositions of solvent mixtures were determined and the rational analysis of the results was attempted.
Related Topics
Physical Sciences and Engineering
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Physical and Theoretical Chemistry
Authors
Pijus Kanti Khatua, Sujan Chatterjee, S.C. Bhattacharya,