Simulation of photochemical hole-burning experiments on photosynthetic reaction centers
- 1 August 1987
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 84 (16) , 5511-5515
- https://doi.org/10.1073/pnas.84.16.5511
Abstract
An effective Hamiltonian formalism is used to calculate the homogeneous linewidth of long-wavelength absorption in the photosynthetic reaction center. Agreement with the experimental values of .apprxeq.400 cm-1 for the hole width of the 990-nm band of Rhodopseudomonas viridis is obtained. The anomalously (two orders of magnitude) large width is explained in terms of resonant coupling to charge transfer states. These results support a dynamical model of primary charge separation [Friesner, R. and Wertheimer. R. (1982) Proc. Natl. Acad. Sci USA 79, 2138-2142] in which such resonant coupling was also concluded to be important.Keywords
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