Formation of Long-Lived Highly-Excited States of H, C, and N Atoms by Low-Energy Electron Impact on CH<SUB>3</SUB>CN
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概要
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Long-lived excited states of hydrogen, carbon and nitrogen atoms (H<SUP>**</SUP>, C<SUP>**</SUP> and N<SUP>**</SUP>) produced by the electron bombardment of CH<SUB>3</SUB>CN in the energy range from 20 to 100 eV were detected as H<SUP>+</SUP>, C<SUP>+</SUP> and N<SUP>+</SUP> ions as a result of collisions with H<SUB>2</SUB>O. The appearance potential of H<SUP>+</SUP> was observed to be about 3 eV lower than the threshold energy for He<SUP>+</SUP> formed from He<SUP>**</SUP> with H<SUB>2</SUB>O (about 24.6eV). The C<SUP>+</SUP> threshold energy was about the same as that for He<SUP>+</SUP>, while that for N<SUP>+</SUP> appeared to be a few eV higher. This suggests that the H<SUP>**</SUP> species is mainly responsible for the formation of CH<SUB>3</SUB>CN<SUP>−</SUP> due to the electron bombardment of CH<SUB>3</SUB>CN observed by Sugiura and Arakawa, at least in the energy region below the He<SUP>**</SUP> threshold energy.
- 公益社団法人 日本化学会の論文
著者
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Kuchitsu Kozo
Department Of Chemistry Faculty Of Science The University Of Tokyo
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Shibata Takemasa
Department Of Chemistry And Fuel Research Japan Atomic Energy Research Institute
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Fukuyama Tsutomu
Department Of Chemistry Faculty Of Science The University Of Tokyo
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