Picosecond time-resolved total internal reflection fluorescence spectroscopy was applied lo analyze the proton transfer reaction of I-naphthol in water-sapphire interface layers. The rate constant of the proton transfer reaction from excited neutral species became slow in the interface layer as comp
Geminate recombination of proton transfer reactions: time-resolved fluorescence study of 1-naphthol-3,6-disulfonate
β Scribed by A. Masad; D. Huppert
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 539 KB
- Volume
- 180
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
Unlike the reversible proton recombination found in many excited-state proton transfer reactions, I-naphthol-3.6-disulfonate exhibits an almost irreversible proton recombination process. As a result of quenching through geminate recombination, the fluorescence of the unprotonated form is nonexponential. The Debye-Smoluchowski equation is used to explain the effect of geminate recombination.
π SIMILAR VOLUMES
Time-resolved and steadystate fluorescence studlcs of proflavine in aqueous solutton are presented. The obsenauon of a monoexponentlal fluorescence decay wth a time constant decreasmg wth tnaeasing pH and the presence of an anomalous redjhift m the fluorescence spectrum as a function of pH indwate t
Analyses of the excited-state proton transfer reaction of 1-naphthol in sapphire/water interface layers have been performed using fluorescence decay data obtained by a picosecond time-resolved total internal reflection fluorescence spectroscopy. The rate constant of the excited-state proton transfer