We report on an increase in the steady-state fluorescence Stokes shift of coumarin 153 when LiCI04 is added to polar solvents. A new relaxation process is observed in the presence of the electrolyte which is related to the ionic atmosphere relaxation around the large dipole created in the excited s
Dynamic salt effect on excited large dipole solvation
โ Scribed by E. Bart; D. Huppert
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 664 KB
- Volume
- 195
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
A time-resolved fluorescence technique is employed to measure the time-dependent Stokes shift of coumarins 102 and 153 in non-aqueous electrolyte solutions. The electrolyte relaxation time exhibits a linear dependence on the electrolyte concentration in the range 10 mM-1 M.
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