Journal of Physical Chemistry p. 10331 - 10336 (1991)
Update date:2022-08-16
Topics:
Tolbert, Laren M.
Nesselroth, Susan M.
"Charge-transfer" quenching of naphthols by amines can occur via either proton transfer or electron transfer.To gain insight into the quenching mechanism, the room temperature photophysics of 2-naphthol (N2) in the presence of a trialkylamine was compared with that of 2-methoxynaphthalene (N2M) and of an intramolecular equivalent, 1-<(dimethylamino)methyl>-2-naphthol (1DMN2).To maintain structural analogy, dimethylbenzylamine (DMBA) was used as the quencher.Comparison of steady-state and time-resolved fluorescence for both intermolecular and intramolecular cases leads to the conclusion that the major quenching pathway involves proton transfer.
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