Conformation effect of oligosilane linker on photoinduced electron transfer of tetrasilane-linked zinc porphyrin-[60]fullerene dyads

Yuki Shibano, Mikio Sasaki, Hayato Tsuji, Yasuyuki Araki, Osamu Ito, Kohei Tamao

研究成果: Article査読

34 被引用数 (Scopus)

抄録

A series of zinc porphyrin-[60]fullerene dyads linked by conformation-constrained tetrasilanes and permethylated tetrasilane have been synthesized for the evaluation of the conformation effect of the tetrasilane linkers on the photoinduced electron transfer. The excited-state dynamics of these dyads have been studied using the time-resolved fluorescence and absorption measurements. The fluorescence of the zinc porphyrin moiety in each dyad was quenched by the electron transfer to the fullerene moiety. The transient absorption measurements revealed that the final state of the excited-state process was a radical ion pair with a radical cation on the zinc porphyrin moiety and a radical anion on the fullerene moiety as a result of the charge separation. The charge separation and charge recombination rates were found to show only slight conformation dependence of the tetrasilane linkers, which is characteristic for the Si-linkages.

本文言語English
ページ(範囲)356-367
ページ数12
ジャーナルJournal of Organometallic Chemistry
692
1-3
DOI
出版ステータスPublished - 2007 1 1

ASJC Scopus subject areas

  • 生化学
  • 物理化学および理論化学
  • 有機化学
  • 無機化学
  • 材料化学

フィンガープリント

「Conformation effect of oligosilane linker on photoinduced electron transfer of tetrasilane-linked zinc porphyrin-[60]fullerene dyads」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル