External Ionization Potentials of Solvated Species by Photoelectron Emission Spectroscopy

通过光电子发射光谱法测定溶剂化物质的外部电离势

• 批准号: 01540399
• 负责人: WATANABE Iwao
• 金额: $ 0.13万
• 依托单位: Faculty of Science, Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1990
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01540399/
• 关键词: Photoelectron Emission Spectroscopy; External Ionization Potential; Polarization Energy; Reorganization Energy; Thiocyanate; Alternant Aromatic Hydrocarbon; 溶媒効果; フェノ-ル誘導体; 水素結合

A new technique for measuring the external ionization potentials of molecules and ions in solution has been developed. The external ionization potential can be used to obtain information the electronic energy state of solvated species and/or effects of the solvation on its electronic state.1. Reorganization energy of solvent by the photoelectron emission from thiocyanate : The external ionization energies of thiocyanate in various solvents were measured. The values can be converted to the reorganization energy of solvent. It was found that the reorganization energy well correlates with the acceptor number of the solvent.2. Alternant aromatic hydrocarbons in acetonitrile :The external ionization potentials of these solutions are smaller than those of the gaseous state. The differences are due to the polarization energies of solvent molecules around the solute molecule. The polarization energies experimentally determined do not vary in accordance with the Born equation.

发展了一种测量溶液中分子和离子外电离势的新技术。外电离势可以用来获得溶剂化物种的电子能态和/或溶剂化对其电子态的影响的信息。用硫氰酸盐的光电子发射测定溶剂的重组能：测定了硫氰酸盐在各种溶剂中的外电离能。这些值可以转换为溶剂的重组能。发现重组能与溶剂的受体数有很好的相关性.乙腈中的交替芳烃：这些溶液的外电离势小于气态。这种差异是由于溶质分子周围的溶剂分子的极化能。实验确定的极化能量不按照玻恩方程变化。

项目成果

I.Watanabe: "Photoelectron emission study of iron(II) and cobalt(II) complexes in aqueous solution.Reorganization energies." Bull.Chem.Soc.Jpn.64. 352-357 (1991)

I.Watanabe：“水溶液中铁 (II) 和钴 (II) 配合物的光电子发射研究。重组能。”

I.Watanabe: "Photoelectron emission study of halide ions in solutions.Reorganization energies." Bull.Chem.Soc.Jpn.

I.Watanabe：“溶液中卤化物离子的光电子发射研究。重组能量。”

I. Watanabe: "Electronic states of ions and molecules in solution studied by photoelectron emission spectroscopy." "Structure and Dynamics in Solution", ed. by H. Yamatera and H. Ohtaki. (1992)

I. Watanabe：“通过光电子发射光谱研究溶液中离子和分子的电子态。”

I.Watanabe: "Photoelectron emission study of phenols in aqueous and organic solvents.Hydrogenーbond effects on ionization potentials." Bull.Chem.Soc.Jpn.

I.Watanabe：“水性和有机溶剂中酚的光电子发射研究。氢键对电离势的影响。”

I.Watanabe: "Photoelectron emission study of alternant hydrocarbon molecules in solution." Bull.Chem.Soc.Jpn.

I.Watanabe：“溶液中交替碳氢化合物分子的光电子发射研究。”