Photoinduced electron transfer of dialkynyldisilane-linked zinc porphyrin-[60]fullerene dyad

Hayato Tsuji, Mikio Sasaki, Yuki Shibano, Motoki Toganoh, Takeshi Kataoka, Yasuyuki Araki, Kohei Tamao, Osamu Ito

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

A zinc porphyrin-fullerene dyad with a disilane as a σ-conjugated linker has been newly synthesized to evaluate the electron transfer ability of the oligosilane chain. Its photoinduced processes have been studied using the time-resolved fluorescence and absorption measurements. Photoexcitation of the dyad causes the energy and/or electron transfer from the excited singlet state of the ZnP to C 60 moiety in polar solvents. The charge separation takes place as a final step in the excited-state process to yield the radical-ion pair with a radical cation on the zinc porphyrin and a radical anion on the fullerene, similar to other porphyrin-fullerene dyads. Its lifetime has been estimated to be 0.43-0.52 μs on the basis of the decay rate of the fullerene radical anion in polar solvents.

Original languageEnglish
Pages (from-to)1338-1346
Number of pages9
JournalBulletin of the Chemical Society of Japan
Volume79
Issue number9
DOIs
Publication statusPublished - Nov 9 2006

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Fullerenes
Electrons
Excited states
Anions
Photoexcitation
Porphyrins
Cations
Fluorescence
Ions
zinc hematoporphyrin
fullerene C60

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

Cite this

Photoinduced electron transfer of dialkynyldisilane-linked zinc porphyrin-[60]fullerene dyad. / Tsuji, Hayato; Sasaki, Mikio; Shibano, Yuki; Toganoh, Motoki; Kataoka, Takeshi; Araki, Yasuyuki; Tamao, Kohei; Ito, Osamu.

In: Bulletin of the Chemical Society of Japan, Vol. 79, No. 9, 09.11.2006, p. 1338-1346.

Research output: Contribution to journalArticle

Tsuji, Hayato ; Sasaki, Mikio ; Shibano, Yuki ; Toganoh, Motoki ; Kataoka, Takeshi ; Araki, Yasuyuki ; Tamao, Kohei ; Ito, Osamu. / Photoinduced electron transfer of dialkynyldisilane-linked zinc porphyrin-[60]fullerene dyad. In: Bulletin of the Chemical Society of Japan. 2006 ; Vol. 79, No. 9. pp. 1338-1346.
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AU - Araki, Yasuyuki

AU - Tamao, Kohei

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