Synthesis and photochemical properties of chlorin-chlorin and oxochlorin-oxochlorin dyads

ORGN 236

Masahiko Taniguchi1, Doyoung Ra1, Christine Kirmaier2, Eve K. Hindin2, Jennifer K. Schwartz2, James R. Diers3, Dewey Holten2, Robert S. Knox4, David F. Bocian3, and Jonathan S. Lindsey1. (1) Department of Chemistry, North Carolina State University, Box 8204, Raleigh, NC 27695-8204, (2) Department of Chemistry, Washington University, Box 1134, One Brookings Drive, St. Louis, MO 63130, (3) Department of Chemistry, University of California, Riverside, Riverside, CA 92521-0403, (4) Department of Physics and Astronomy, University of Rochester, P. O. Box 27-0171, Rochester, NY 14627-0171
Chlorins (e.g., chlorophyll) are dihydroporphyrins that provide the basis for photosynthesis. Chlorins provide superior spectral coverage compared with porphyrins but have traditionally presented more challenging syntheses. Artificial photosynthesis has largely employed porphyrins rather than chlorins, owing to more facile syntheses of porphyrins. We have exploited a new route to chlorin/oxochlorin building blocks in preparation of chlorin/oxochlorin dyads. We now can compare the light-harvesting and energy-transfer properties of dyads composed of porphyrins, chlorins, or oxochlorins.

 

Heterocycles and Aromatics
8:00 AM-12:00 PM, Monday, September 8, 2003 Sheraton New York -- Royal Ballroom B, Oral

Division of Organic Chemistry
The 226th ACS National Meeting, New York, NY, September 7-11, 2003