Pyrene-1-Carboxylate in Water and Glycerol Solutions: Origin of the Change of pK Upon Excitation

Abstract

Pyrene-1-carboxy acid has a pK of 4 in the ground state, and a pK of 8 in the excited state. Fluorescence spectra of the acid and base forms are presented as a function of solvent and temperature. Ab initio quantum calculations indicate that the bond between the ring system and the carboxyl group has aromatic character that becomes stronger upon excitation… (More)
DOI: 10.1007/s10895-007-0233-x

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@article{Nucci2007Pyrene1CarboxylateIW, title={Pyrene-1-Carboxylate in Water and Glycerol Solutions: Origin of the Change of pK Upon Excitation}, author={Nathaniel V. Nucci and Bogumil Zelent and Jane M. Vanderkooi}, journal={Journal of Fluorescence}, year={2007}, volume={18}, pages={41-49} }