Photoionization threshold energies of amine solutions studied by photoelectron emission by solution.
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概要
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The threshold energies <I>E</I><SUB>t</SUB> of photoelectron emission by solutions (PEES) were determined for several butylamines in acetonitrile and water. The correlations between <I>E</I><SUB>t</SUB> and gas-phase ionization potential <I>I</I><SUB>p</SUB> and oxidation potential <I>E</I><SUB>ox</SUB> were found to be linear. The difference between <I>E</I><SUB>t</SUB> and <I>I</I><SUB>p</SUB> originates from the electronic polarization energy of solvent molecules and the polarization energy was found to be inversely proportional to the solvation radius in accordance with the Born solvation free energy model. The <I>E</I><SUB>t</SUB> values were also compared with <I>E</I><SUB>ox</SUB> to discuss the reorientation relaxation of solvent molecules in the electron transfer process. The selective coverage of aqueous solution surface with amine molecule was indicated by the PEES technique.
- 公益社団法人 日本化学会の論文
著者
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Watanabe Iwao
Department Of Anesthesilogy Takasaki National Hospital
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Ikeda Shigero
Department Of Chemistry Faculty Of Science Osaka University
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Maya Keiichi
Department of Chemistry, Faculty of Science, Osaka University
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Yabuhara Yoshiki
Department of Chemistry, Faculty of Science, Osaka University
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