Charge Transfer Reactions from I- to Polar Protic Solvents Studied Using Ultrafast Extreme Ultraviolet Photoelectron Spectroscopy
Charge Transfer Reactions from I- to Polar Protic Solvents Studied Using Ultrafast Extreme Ultraviolet Photoelectron Spectroscopy
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使用超快极紫外光电子能谱研究从 I- 到极性质子溶剂的电荷转移反应
DOI：
10.1021/acs.jpclett.2c03849
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
and Toshinori Suzuki
中科院分区：
文献类型：
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作者：
Yo-ichi Yamamoto;Yoshi-Ichi Suzuki;and Toshinori Suzuki
用极紫外时间分辨光电子能谱（EUV-TRPES）研究了碘离子与水、甲醇和乙醇的电荷转移反应。这种技术消除了光谱展宽，以前看到的UV-TRPES，在液体中的电子非弹性散射所造成的，并能够清楚地观察光谱形状的时间演变。电子结合能分布的峰值位置、宽度和强度指示电子脱离以及随后的溶剂化和热化过程。利用扩散方程和基于动力学模型的整体拟合分析，讨论了分离电子与碘原子的双生复合。
Charge transfer reactions from I–to solvent water, methanol, and ethanol were studied using extreme ultraviolet time-resolved photoelectron spectroscopy (EUV-TRPES). This technique eliminates spectral broadening, previously seen in UV-TRPES, caused by electron inelastic scattering in liquids, and enables clear observation of the temporal evolution of the spectral shape. The peak position, width, and intensity of the electron binding energy distribution indicate electron detachment and subsequent solvation and thermalization processes. Geminate recombination between detached electrons and iodine atoms is discussed using a diffusion equation and a global fitting analysis based on a kinetics model.