Polyether-bridged sexithiophene as a complexation-gated molecular wire for intramolecular photoinduced electron transfer

Takuro Oike, Tomoyuki Kurata, Kazuo Takimiya, Tetsuo Otsubo, Yoshio Aso, Huimin Zhang, Yasuyuki Araki, Osamu Ito

研究成果: Article査読

50 被引用数 (Scopus)

抄録

The porphyrin-sexithiophene-fullerene triad 2, where the two central thiophene units of the sexithiophene spacer are bridged with a crown-ether-like polyether chain, undergoes efficient intramolecular electron transfer from the photoexcited porphyrin moiety to the fullerene through the sexithiophene. However, complexation with a sodium cation in the crown ether ring causes complete suppression of electron transfer as a result of a drastic conformational change of the sexithiophene backbone. Furthermore, decomplexation resumes the photoinduced electron transfer. This on/off switching phenomenon indicates that the polyether-bridged sexithiophene can function as a complexation-gated molecular wire.

本文言語English
ページ(範囲)15372-15373
ページ数2
ジャーナルJournal of the American Chemical Society
127
44
DOI
出版ステータスPublished - 2005 11 9

ASJC Scopus subject areas

  • 触媒
  • 化学 (全般)
  • 生化学
  • コロイド化学および表面化学

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