ORGN 229 |
| Sourav Saha1, Amar Flood1, Kirsten Griffiths1, Hsian Rong Tseng1, J Fraser Stoddart1, Francois Bonet2, and Bruce Dunn2. (1) Department of Chemistry and Biochemistry, California NanoSystems Institute, University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, CA 90095-1569, (2) Department of Materials Science and Engineering, California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095 |
| Donor-chromophore-fullerene (D-P-C60) based molecular triads that undergo photoinduced electron transfer (PET) have enticed researchers to harness light energy in molecular-scale machines by mimicking the photosynthetic reaction center. In the molecular triad, PET from the photoexcited porphyrin chromophore to the electron acceptor C60 moiety which is rapidly followed by electron transfer from an electron-donor tetrathiafulvalene (TTF) moiety to the porphyrin, ultimately leads to a stabilized charge separated state (TTF+•-P-C60–•). Back electron transfer (BET) in the charge-separated species restores the neutral ground state. The rate of BET, which determines the lifetime of the charge separated state, is a critical parameter for solar cells. The talk will highlight progress towards the modular synthesis of the TTF-P-C60 based molecular triads that have the potential to be self-assembled on solid surfaces for photoelectrochemical studies. |
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Physical Organic Chemistry: Calculations, Mechanisms, Photochemistry, and High-Energy Species
8:00 AM-12:00 PM, Tuesday, March 30, 2004 Anaheim Convention Center -- 303A, Oral
Division of Organic Chemistry |
