Magnetic field effects on the decay rate of photogenerated biradical from intramolecular electron transfer of triplet excited fullerene in a fullerene-phenothiazine linked compound

Hiroaki Yonemura, Hiromasa Tokudome, Sunao Yamada

    研究成果: Contribution to journalArticle査読

    18 被引用数 (Scopus)

    抄録

    Transient absorption spectra of a fullerene (C60)-phenothiazine (PH) linked compound indicated that the intramolecular electron transfer occurred in benzonitrile, while not in benzene. In benzonitrile, the lifetime (118 ns) of photogenerated biradical was very long, in spite of being around the top region in Marcus theory. The lifetime of the biradical was enhanced by 1.8 times in the presence of magnetic fields (>0.2 T). The magnetic field effects verified that the triplet biradical was generated from the intramolecular electron transfer from PH to the triplet C60. The long lifetime is most likely ascribed to spin multiplicities of the biradical.

    本文言語英語
    ページ(範囲)361-367
    ページ数7
    ジャーナルChemical Physics Letters
    346
    5-6
    DOI
    出版ステータス出版済み - 10 12 2001

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy(all)
    • Physical and Theoretical Chemistry

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