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. This stabilization helps to account for the increase in pK upon excitation.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 41-49 |
| Number of pages | 9 |
| Journal | Journal of Fluorescence |
| Volume | 18 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 1 2008 |
All Science Journal Classification (ASJC) codes
- Biochemistry
- Clinical Psychology
- Social Sciences (miscellaneous)
- Sociology and Political Science
- Spectroscopy
- Clinical Biochemistry
- Law
Fingerprint Dive into the research topics of 'Pyrene-1-carboxylate in water and glycerol solutions: Origin of the change of pK upon excitation'. Together they form a unique fingerprint.
Cite this
Nucci, N. V., Zelent, B., & Vanderkooi, J. M. (2008). Pyrene-1-carboxylate in water and glycerol solutions: Origin of the change of pK upon excitation. Journal of Fluorescence, 18(1), 41-49. https://doi.org/10.1007/s10895-007-0233-x