Characterization of the Giant Transient Dipole Generated by Photoinduced Electron Transfer in a Carotene-Porphyrin-Fullerene Molecular Triad

Sergei N. Smirnov, Paul A. Liddell, Ivan V. Vlassiouk, Alexey Teslja, Darius Kuciauskas, Charles L. Braun, Ana L Moore, Thomas A Moore, John Devens Gust

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

Excitation of a carotenoid (C) porphyrin (P) fullerene (C60) molecular triad yields the poiphyrin first excited singlet state, C- 1P-C60, which decays via a sequential two-step photoinduced electron-transfer process into a C•+-P-C 60 •- charge-separated state with a lifetime of 340 ns in 2-methyltetrahydrofuran solution. The transient dc photocurrent method has been used to investigate the dipole moment of the charge-separated state in tetrahydrofuran and 2-methyltetrahydrofuran. The results show formation of a giant dipole with a moment in excess of 150 D, corresponding to separated charges located on the fullerene and carotene moieties of the triad.

Original languageEnglish
Pages (from-to)7567-7573
Number of pages7
JournalJournal of Physical Chemistry A
Volume107
Issue number38
DOIs
Publication statusPublished - Sep 25 2003

Fingerprint

Fullerenes
carotene
Porphyrins
Carotenoids
porphyrins
fullerenes
electron transfer
dipoles
carotenoids
Electrons
Dipole moment
tetrahydrofuran
Photocurrents
Excited states
excitation
photocurrents
dipole moments
moments
life (durability)
decay

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Characterization of the Giant Transient Dipole Generated by Photoinduced Electron Transfer in a Carotene-Porphyrin-Fullerene Molecular Triad. / Smirnov, Sergei N.; Liddell, Paul A.; Vlassiouk, Ivan V.; Teslja, Alexey; Kuciauskas, Darius; Braun, Charles L.; Moore, Ana L; Moore, Thomas A; Gust, John Devens.

In: Journal of Physical Chemistry A, Vol. 107, No. 38, 25.09.2003, p. 7567-7573.

Research output: Contribution to journalArticle

Smirnov, Sergei N. ; Liddell, Paul A. ; Vlassiouk, Ivan V. ; Teslja, Alexey ; Kuciauskas, Darius ; Braun, Charles L. ; Moore, Ana L ; Moore, Thomas A ; Gust, John Devens. / Characterization of the Giant Transient Dipole Generated by Photoinduced Electron Transfer in a Carotene-Porphyrin-Fullerene Molecular Triad. In: Journal of Physical Chemistry A. 2003 ; Vol. 107, No. 38. pp. 7567-7573.
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AU - Teslja, Alexey

AU - Kuciauskas, Darius

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