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The mechanisms of charge separation in bacterial reaction centers

Marten H. Vos, Fabrice Rappaport, Jean-Christophe Lambry, Christian Rischel, Jacques Breton, and Jean-Louis Martin

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Abstract

The mechanism of primary electron transport in photosynthetic reaction centers has received considerable recent attention. It is generally accepted that upon excitation an electron is transferred from a dimer-like bacteriochlorophyll donor P to a bacteriopheophytin electron acceptor HL in a time in the order of 1 ps, dependant on species and temperature. The question is how the protein/chromophore medium mediates this very fast transport, which spans about 17 Å. It is clearly outside of the range of classical non-adiabatic, pseudo-equilibrium electron transport theory.

© 1992 The Author(s)

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