Mercury-Photosensitized Reaction of Acetylene

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概要

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• The mercury-photosensitized reaction of acetylene has been studied with equimolar mixtures of C<SUB>2</SUB>H<SUB>2</SUB> and C<SUB>2</SUB>D<SUB>2</SUB> under various conditions of pressure, temperature, and additives. It is shown that the distribution of isotopically substituted benzenes can be explained by a modified excited state mechanism equally as well as, or more favourably than by the free radical mechanism. The results on deuterium-acetylene mixtures photosensitized by Hg(<SUP>3</SUP>P<SUB>1</SUB>), however, suggest that benzene is also formed by the reaction of hydrogen atoms and acetylene molecules. The rates of benzene formation and of the polymer formation increased gradually with pressure in low pressure region to attain a maximum and then decreased. Argon very strongly inhibited the benzene formation and, to a less extent, the polymer formation. The primary process is explained by assuming the formation of a transient complex of a triplet mercury atom and an acetylene molecule.

• 公益社団法人 日本化学会の論文

著者

• Tsukada Masao

  Laboratory of Physical Chemistry, Tokyo Institute of Technology

関連論文

• Mechanism of Benzene Formation in the Radiation-Induced and Photochemical Reactions of Acetylene
• Photolysis of Acetylene at 1849 Å
• Mercury-Photosensitized Reaction of Acetylene

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