Studies on the inelastic electron tunneling spectroscopy of o-hydroxy-, o-amino-, and o-mercaptobenzoic acid on aluminium oxide.

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概要

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• Inelastic electron tunneling (IET) spectra were obtained for <I>o</I>-hydroxybenzoic acid(OHBA), <I>o</I>-aminobenzoic acid (OABA) and <I>o</I>-mercaptobenzoic acid (OMBA) adsorbed on aluminium oxide (AlO<I><SUB>x</SUB></I>) grown on aluminium film and were analyzed by referring IR results. OHBA is adsorbed on AlO<I><SUB>x</SUB></I> with both two functional groups, carboxyl and hydroxyl radicals. In the case of OABA, the adsorption occurs mainly with carboxyl group and the interaction between amino group and AlO<I><SUB>x</SUB></I> is rather weak. Mercapto group of OMBA forms two kinds of hydrogen bonding, and a dissociated species on AlO<I><SUB>x</SUB></I>. These results indicate that the surface of AlO<I><SUB>x</SUB></I> used in this study is highly hydrated and hydroxyl groups on the oxide are reactive with the proton donating sites of the chemical species. IET spectra of <I>o</I>-fluoro- and <I>o</I>-chlorobenzoic acid were also observed for comparison.

• 公益社団法人 日本化学会の論文

著者

• Ikeda Shigero

  Department of Chemistry, Faculty of Science, Osaka University

関連論文

• He I photoelectron spectra of ethylene carbonate and related compounds.
• Studies on the inelastic electron tunneling spectroscopy of o-hydroxy-, o-amino-, and o-mercaptobenzoic acid on aluminium oxide.

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