Photoinduced electron transfer in a hexaphenylbenzene-based self-assembled porphyrin-fullerene triad

Yuichi Terazono, Gerdenis Kodis, Paul A. Liddell, Vikas Garg, Miguel Gervaldo, Thomas Moore, Ana Moore, Devens Gust

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

A hexaphenylbenzene-based zinc porphyrin dyad forms a 1:1 complex with a fullerene bearing two pyridyl groups via coordination of the pyridyl nitrogens with the zinc atoms. The fullerene is symmetrically located between the two zinc porphyrins. The binding constant for the complex is 7.3 × 104 M-1 in 1,2-difluorobenzene. Photoinduced electron transfer from a porphyrin first excited singlet state to the fullerene occurs with a time constant of 3 ps, and the resulting charge-separated state has a lifetime of 230 ps. This self-assembled construct should form a basis for the construction of more elaborate model photosynthetic antenna-reaction center systems.

Original languageEnglish (US)
Pages (from-to)464-469
Number of pages6
JournalPhotochemistry and Photobiology
Volume83
Issue number2
DOIs
StatePublished - Mar 2007

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Fullerenes
Porphyrins
porphyrins
fullerenes
electron transfer
zinc
Electrons
Bearings (structural)
Photosynthetic Reaction Center Complex Proteins
Excited states
time constant
Zinc
Nitrogen
antennas
Antennas
nitrogen
life (durability)
Atoms
excitation
atoms

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry
  • Biophysics

Cite this

Photoinduced electron transfer in a hexaphenylbenzene-based self-assembled porphyrin-fullerene triad. / Terazono, Yuichi; Kodis, Gerdenis; Liddell, Paul A.; Garg, Vikas; Gervaldo, Miguel; Moore, Thomas; Moore, Ana; Gust, Devens.

In: Photochemistry and Photobiology, Vol. 83, No. 2, 03.2007, p. 464-469.

Research output: Contribution to journalArticle

Terazono, Yuichi ; Kodis, Gerdenis ; Liddell, Paul A. ; Garg, Vikas ; Gervaldo, Miguel ; Moore, Thomas ; Moore, Ana ; Gust, Devens. / Photoinduced electron transfer in a hexaphenylbenzene-based self-assembled porphyrin-fullerene triad. In: Photochemistry and Photobiology. 2007 ; Vol. 83, No. 2. pp. 464-469.
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