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Updated: Aug 18, 2026

Rejection of Fluorescence Background in Resonance and Spontaneous Raman Microspectroscopy
Published on: May 18, 2011
[The medium effects on fluorescence of coumarin-1 complexes]
Abstract:
The fluorescence spectra of 4-methyl-7-diethylaminocoumarin (coumarin-1) in cyclohexane-alcohol, 1, 4-dioxane-water binary mixed solvents and cyclodextrin, surfactant aqueous solutions were studied in detail. The reasons that fluorescence spectrum of coumarin-1 is very sensitive to environmental polar change were discussed based on solvent-solute molecule hydrogen bond and its effects on formation of nonradiative twisted intramolecular charge transfer (TICT) state for the fluorescence probe. In the meanwhile, it' s inclusion constant with CD and bonding constant with surfactan micella were determined.
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