The acidity dependence of the fluorescence of β-naphthylamin

Capomacchia, Anthony C.; Schulman, Stephen G.

The acidity dependence of the fluorescence of β-naphthylamin

Capomacchia, Anthony C.; Schulman, Stephen G.

URI: http://hdl.handle.net/10725/6345

URL: http://www.sciencedirect.com/science/article/pii/0584853972800023

DOI: https://doi.org/10.1016/0584-8539(72)80002-3

Date: 2017-10-18

Terms of Use: This item is made available under the terms and conditions applicable to " Article ", as set forth at: http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php

Abstract:

The change of hybridization of β-naphthylamine from sp3 to sp2, subsequent to excitation is found to have little effect upon the entropy of protonation of β-naphthylamine in the lowest excited singlet state. Solvent relaxation of the neutral amine, subsequent to excitation and as a result of dipole-dipole interactions, is shown to play an important role in the energy of the lowest excited singlet state and the pKa∗ value. The rates of protonation and dissociation of excited β-naphthylamine appear to be slightly slower than the rate of fluorescence of the β-naphthylammonium ion.

Citation:

Schulman, S. G., & Capomacchia, A. C. (1972). The acidity dependence of the fluorescence of β-naphthylamin. Spectrochimica Acta Part A: Molecular Spectroscopy, 28(1), 1-4.