The excited state dynamics of phenol in water have been investigated using transient absorption spectroscopy. Solvated electrons and vibrationally cold phenoxyl radicals are observed upon 200 and 267 nm excitation, but with formation time scales that differ by more than 4 orders of magnitude. The impact of these findings is assessed in terms of the relative importance of autoionization versus proton-coupled electron transfer mechanisms in this computationally tractable model system.
Bibliographical noteDate of Acceptance: 30/09/2015
- UV photochemistry
- solvated electrons
- proton transfer
- electron transfer
- nonradiative decay
Oliver, T. A. A., Zhang, Y., Roy, A., Ashfold, M. N. R., & Bradforth, S. E. (2015). Exploring autoionization and photo-induced proton-coupled electron transfer pathways of phenol in aqueous solution. Journal of Physical Chemistry Letters, 6(20), 4159-4164. https://doi.org/10.1021/acs.jpclett.5b01861