Resonance Raman spectra of electrons solvated in liquid alcohols
Resonance Raman spectra of electrons solvated in liquid alcohols
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DOI：
10.1021/ja031816d
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发表时间：
2004-03-24
影响因子：
15
通讯作者：
Mathies, RA
中科院分区：
文献类型：
--
作者：
Tauber, MJ;Stuart, CM;Mathies, RA
本文给出了电子在甲醇、乙醇和正丙醇中溶剂化的共振拉曼光谱。至少有五种不同的溶剂模式表现出共振增强的散射，包括OH扭转，CO/CC拉伸，OH面内弯曲，甲基变形，和OH拉伸。OH伸缩的200−350 cm-1频率下移表明电子和羟基之间存在强的氢键相互作用。包括烷基振动耦合到溶剂化电子的电子跃迁的多个模式揭示了电子的波函数到烷基溶剂环境中的延伸。
Resonance Raman spectra of electrons solvated in liquid methanol, ethanol, andn-propanol are presented. At least five distinct solvent modes exhibit resonantly enhanced scattering, including the OH torsion, CO/CC stretches, the OH in-plane bend, methyl deformations, and the OH stretch. The 200−350 cm-1frequency downshift of the OH stretch indicates a strong H-bond interaction between the electron and the hydroxyl group. The multiple modes including alkyl vibrations that are coupled to the electronic transition of the solvated electron reveal the extension of the electron's wavefunction into the alkyl solvent environment.