Exploring Autoionization and Photoinduced Proton-Coupled Electron Transfer Pathways of Phenol in Aqueous Solution
Exploring Autoionization and Photoinduced Proton-Coupled Electron Transfer Pathways of Phenol in Aqueous Solution
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DOI：
10.1021/acs.jpclett.5b01861
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发表时间：
2015-10-15
影响因子：
5.7
通讯作者：
Bradforth, Stephen E.
中科院分区：
文献类型：
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作者：
Oliver, Thomas A. A.;Zhang, Yuyuan;Bradforth, Stephen E.
利用瞬态吸收光谱研究了苯酚在水中的激发态动力学。溶剂化的电子和振动冷苯氧基自由基后，观察到200和267 nm的激发，但形成的时间尺度，不同的超过4个数量级。这些研究结果的影响进行评估的相对重要性，自电离与质子耦合的电子转移机制，在这个计算易处理的模型系统。
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.