Photoinduced electron-transfer reaction between C60 and cyclic silicon compounds

Yoshiko Sasaki, Toshifumi Konishi, Mamoru Fujitsuka, Osamu Ito, Yutaka Maeda, Takatsugu Wakahara, Takeshi Akasaka, Masahiro Kako, Yasuhiro Nakadaira

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Electron transfer from cyclic silicon compounds to photo-excited C60 in polar solvents has been investigated by laser photolysis with observation of the transient absorption bands in the near-IR region. For three-, four- and five-membered cyclic silicon compounds in benzonitrile, the rise of the radical anion of C60 [C60· -] was observed with the rapid decay of the triplet state of C60 [3C60*], indicating that electron transfer takes place via 3C60*. The rate constant (ket) and quantum yield (Φet) of electron transfer decrease with an increase in the number of silicon units. The ket and Φet values of the cyclic silicon compounds are smaller than those of the corresponding cyclic germanium compounds; an especially prominent difference was observed for four-membered cyclic compounds.

Original languageEnglish
Pages (from-to)216-220
Number of pages5
JournalJournal of Organometallic Chemistry
Volume599
Issue number2
DOIs
Publication statusPublished - 2000 Apr 15

Keywords

  • C
  • Cyclic organosilicon compounds
  • Photoinduced electron transfer

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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  • Cite this

    Sasaki, Y., Konishi, T., Fujitsuka, M., Ito, O., Maeda, Y., Wakahara, T., Akasaka, T., Kako, M., & Nakadaira, Y. (2000). Photoinduced electron-transfer reaction between C60 and cyclic silicon compounds. Journal of Organometallic Chemistry, 599(2), 216-220. https://doi.org/10.1016/S0022-328X(99)00766-4