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On spin-exchange and electron-transfer rates in bacterial photosynthesis

Haberkorn, R. and Michel-Beyerle, M. E. and Marcus, R. A. (1979) On spin-exchange and electron-transfer rates in bacterial photosynthesis. Proceedings of the National Academy of Sciences of the United States of America, 76 (9). pp. 4185-4188. ISSN 0027-8424.

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A discrepancy is explored regarding the spin exchange integral estimated from magnetic field effects on recombination of the bacteriochlorophyll dimer cation (Bchl)2+ and the bacteriopheophytin anion Bph- and the measured electron transfer rate between Bph and electronically excited (Bchl)2. In one explanation considered here there are two sites for the electron or for the hole, with a hopping between sites.

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Marcus, R. A.0000-0001-6547-1469
Additional Information:Copyright © 1979 by the National Academy of Sciences. Contributed by R. A. Marcus, June 21, 1979. It is a pleasure to acknowledge support of this research by grants from the North Atlantic Treaty Organization and from the National Science Foundation. This is contribution no. 6051 from the Arthur Amos Noyes Laboratory of Chemical Physics, California Institute of Technology. The publication costs of this article were defrayed in part by page charge payment. This article must therefore be hereby marked "advertisement" in accordance with 18 U. S. C. §1734 solely to indicate this fact.
Subject Keywords:magnetic field effects, reaction center, bacteriochlorophyll dimer, bacteriopheophytin
Issue or Number:9
Record Number:CaltechAUTHORS:HABpnas79
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:947
Deposited By: Tony Diaz
Deposited On:15 Nov 2005
Last Modified:12 Dec 2019 17:06

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