Scanning Atom Probe Study of Dissociation of Organic Molecules on Titanium Oxide
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概要
- 論文の詳細を見る
Utilizing the unique capability of a scanning atom probe (SAP), the dissociation of crystal violet, C25H30N3, and tetra-$n$-butylammonium hydroxide, N(C4H9)4OH, was investigated. A thin layer of crystal violet on a tungsten substrate was mass analyzed by irradiating a pulsed YAG laser beam. Although undissociated molecules were detected, most molecules dissociated into characteristic fragments. All molecules dissociated when the layer of crystal violet was formed on a layer of titanium oxide, possibly due to the photocatalytic effect of the oxide. The detection of the fragments suggests that double bonds of the molecules are stable. No isolated benzene nucleus, nitrogen atom nor alkyl, such as CH3 and C2H5, were detected. Although most tetra-$n$-butylammonium molecules remained undissociated, many fragments were hardly identifiable because the masses of the fragments were quite different from the multiple masses of carbon atoms.
- 2006-03-15
著者
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Watanabe Shingo
Department Of Cardiology Musashino Red Cross Hospital
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Taniguchi Masahiro
Department Of Bioapplied Chemistry Faculty Of Engineering Osaka City University
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Yamagishi Akihiko
Department Of Chemistry College Of Arts And Sciences The University Of Tokyo
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Sasaki Takayoshi
CREST, JST, Kawaguchi, Saitama 332-0012, Japan
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Yamagishi Akihiko
Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
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Nishikawa Osamu
Department of Biology and Chemistry, Kanazawa Institute of Technology, 7-1 Ohgigaoka, Nonoichi, Ishikawa 921-8501, Japan
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Taniguchi Masahiro
Department of Biology and Chemistry, Kanazawa Institute of Technology, 7-1 Ohgigaoka, Nonoichi, Ishikawa 921-8501, Japan
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Watanabe Shingo
Department of Biology and Chemistry, Kanazawa Institute of Technology, 7-1 Ohgigaoka, Nonoichi, Ishikawa 921-8501, Japan
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NISHIKAWA Osamu
Department of Anatomy II, School of Veterinary Medicine, Azabu University
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