Ion-Molecule Reactions in Ethylene Oxide

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概要

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• The ion-molecule reactions in the systems including ethylene oxide have been studied at thermal ion energies by means of the ion trapping technique using a modified time-of-flight mass spectrometer. Details of the ion source constructed in this laboratory have been described. The performance of this modified ion source has been examined by the measurement of the ion-molecule reactions in methane. The following major ion-molecule reactions have been identified to be occurring in ethylene oxide, with the measurements of the ionization efficiency curves using the RPD technique for determination of the precursors in the reactions. (All rate constants in cm<SUP>3</SUP>/molecule.sec.) C2H4O+C2H4O→C2H5O++C2H3O, k=1.45×10-<SUP>10</SUP>, CHO++C2H4O→C2H5O++CO, k=2.05×10-<SUP>9</SUP>, CH3++C2H4O+→C2H3O++CH4, k=2.10×10-<SUP>10</SUP>.By the experiments using simple hydrocarbons including ethylene-d4as the additive, the sequence of the reactivity for the protonated ion formation and the charge transfer reactions from simple hydrocarbon ions to the ethylene oxide molecule have also been studied.

• 日本質量分析学会の論文

著者

• KUMAKURA Minoru

  Japan Atomic Energy Research Institute, Takasaki Radiation Chemistry Research Establishment

• ITO Akihiro

  Japan Atomic Energy Research Institute, Takasaki Radiation Chemistry Research Establishment

• SUGIURA Toshio

  Japan Atomic Energy Research Institute, Osaka Laboratory for Radiation Chemistry

• Sugiura Toshio

  Japan Atomic Energy Research Institute

関連論文

• Ion-Molecule Reactions in Ethylene Oxide
• Ion-molecule reactions in the binary mixture of ethylene oxide and trioxane. II. Mechanism for reaction of ethylene oxide molecular ion with trioxane.
• Ion-molecule reactions in the binary mixture of acetaldehyde and trioxane. I. Hydrogen atom and proton transfer reactions.
• Ion-molecule reactions in the binary mixture of ethylene oxide and trioxane. I. Hydrogen atom and proton transfer reactions.

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