Reaction of metastable ar atoms with propylene in flow system.

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概要

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• The reaction of metastable Ar atoms with propylene was studied in a discharge flow system. The major product is ethylene, although ethane, propane and butadiene are also identified as minor products. Within a limited range of propylene concentration the yield of ethylene is proportional to the concentration of propylene. Competitive quenching methods using mixtures of propylene and N<SUB>2</SUB>O or CO<SUB>2</SUB> provided a rate constant of (8.4±0.3)×10<SUP>−10</SUP> cm<SUP>3</SUP> molecule<SUP>−1</SUP> s<SUP>−1</SUP> for the reaction of metastable Ar atom with propylene to yield ethylene. The assumption of a radical mechanism for the main reaction is consistent with the results of competitive quenching, radical scavenger and spin trapping experiments. Measurements of ion current in the reaction mixtures allow an estimation that ionic species contribute less than 2% to the reaction path leading to the formation of ethylene. The metastable Ar atom reaction was also compared to the direct and mercury-sensitized photolysis of propylene.

• 公益社団法人 日本化学会の論文

著者

• Takahasi Makoto

  Department of Pure and Applied Sciences, College of General Education, The University of Tokyo

• Mikuni Hitoshi

  Department of Pure and Applied Sciences, College of General Education, The University of Tokyo

• Sibata Akiko

  Department of Pure and Applied Sciences, College of General Education, the University of Tokyo

• Ohno Shinichi

  Japan Atomic Energy Research Institute, Tokai Research Establishment

関連論文

• Reaction of metastable ar atoms with propylene in flow system.
• Chemiionization of excited mercury atom with 253.7 nm irradiation in the presence of N2 and CH4.
• Mercury-Photosensitized Decomposition of Ethylbenzene
• Photolysis of Nitromethane in Gas Phase at 313 nm

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