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 language | English (US) |
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Pages (from-to) | 7567-7573 |
Number of pages | 7 |
Journal | Journal of Physical Chemistry A |
Volume | 107 |
Issue number | 38 |
DOIs | |
State | Published - Sep 25 2003 |
ASJC Scopus subject areas
- Physical and Theoretical Chemistry