| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 28906 | Journal of Photochemistry and Photobiology A: Chemistry | 2007 | 11 Pages |
Abstract
Benzo[a]phenoxazinium salts were synthesised by reacting 5-alkylamino-2-nitrosophenol hydrochloride with N-alkylated-naphthylamine in good to excellent yields. Photophysical properties of these fluorophores with emphasis in solvent effects were studied. Remarkable shifts in the absorption and emission maximum have been observed as a function of polarity and proton accepting capability of the solvents. The influence on the fluorescence quantum yield was also studied.
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Authors
Vânia H.J. Frade, M. Sameiro T. Gonçalves, Paulo J.G. Coutinho, João C.V.P. Moura,