The Photobleaching: of Trapped Electrons and the Electron Capture of Radicals in γ-Irradiated Hydrocarbon Matrices at 77 K

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概要

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• The rate of the photobleaching of the trapped electrons in the 3-methylhexane and methylcyclohexane matrices at 77 K was measured by means of ESR as a function of the concentration of the 3-methylhexyl or methylcyclohexyl radicals present in the matrices. The quantum yield of the photobleaching at the wavelength of 1300 nm increased with the increase in the radical concentration. The stable products such as olefins formed during the γ-irradiation did not affect the quantum efficiency. These results support the suggestion made by Willard <I>et al.</I> that the 3-methylhexyl and methylcyclohexyl radicals capture the electrons released from the trapping sites by the irradiation of the infrared light. A comparison showed that the radicals are comparable with sulfur hexafluoride in electron capture.

• 公益社団法人 日本化学会の論文

著者

• Ishikawa Yo-ichi

  Department of Applied Physics, Tokyo Institute of Technology

• Sato Shin

  Department of Applied Physics, Tokyo Institute of Technology

• Oka Ko-ichi

  Department of Applied Physics, Tokyo Institute of Technology

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