Exploring Autoionization and Photoinduced Proton-Coupled Electron Transfer Pathways of Phenol in Aqueous Solution
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- 作者：Thomas A. A. Oliver ; Yuyuan Zhang ; Anirban Roy ; Michael N. R. Ashfold ; Stephen E. Bradforth
- 刊名：The Journal of Physical Chemistry Letters
- 出版年：2015
- 出版时间：October 15, 2015
- 年：2015
- 卷：6
- 期：20
- 页码：4159-4164
- 全文大小：320K
- ISSN：1948-7185
文摘
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.