Methane Formation in the Radiolysis of Neopentane and Isooctane

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概要

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• The formation of methane and hydrogen in the γ-radiolysis of neopentane and isooctane has been studied in the presence of an electron scavenger (N<SUB>2</SUB>O) and/or a radical scavenger (styrene). The <I>G</I>-value of nitrogen from neopentane solutions of nitrous oxide was found to be about twice the sum of the decrease in the <I>G</I>-values of methane and hydrogen. From isooctane solutions, <I>G</I>(N<SUB>2</SUB>) was more than three times the sum of the decrease in <I>G</I>(H<SUB>2</SUB>) and <I>G</I>(CH<SUB>4</SUB>). This can be interpreted on the assumption that a significant part of the neutralization of isooctane ions with electrons induces the fragmentation into C<SUB>4</SUB>-hydrocarbons. It was also found that a part of the methane formed (0.9 <I>G</I> in neopentane and 0.2 <I>G</I> in isooctane) was not produced by the reactions of ions or methyl radicals, but by a "molecular" process, probably the decomposition of the highly-excited states.

• 公益社団法人 日本化学会の論文

著者

• Sato Shin

  Department Of Chemistry School Of Science The University Of Tokyo

• Iida Shuichi

  Department of Applied Physics, Tokyo Institute of Technology

• Yugeta Rei

  Department of Applied Physics, Tokyo Institute of Technology

• Sato Shin

  Department of Applied Physics, Tokyo Institute of Technology

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