Picosecond pulse radiolysis studies on geminate ion recombination in saturated hydrocarbon

S. Tagawa, M. Washio, H. Kobayashi, Y. Katsumura, Y. Tabata

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

The geminate recombination kinetics of the excess electron and the electron hole are discussed, based on time-resolved data on picosecond and nanosecond time scales. The recombination times of the excess electron and the electron hole are evaluated to be 3 ps for cyclohexane on the basis of the comparison between the experimental and the calculated results. The spin correlation decay of the geminate ion pairs and the triplet state formation before the spin correlation loss have also been discussed. The rapidly decaying species with very broad absorption spectra, which are similar to the absorption spectra of the cation radicals of saturated hydrocarbons, have been observed in neat saturated hydrocarbons in the sub-nanosecond and a few nanosecond time regions. The identification of the rapidly decaying species were not definitely made but those species are tentatively assigned to the excited states and/or the tail of the geminate cation radicals of saturated hydrocarbons.

Original languageEnglish
Pages (from-to)45-52
Number of pages8
JournalRadiation Physics and Chemistry
Volume21
Issue number1-2
DOIs
Publication statusPublished - 1983
Externally publishedYes

ASJC Scopus subject areas

  • Radiation

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