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Mechanism of Charge Separation in Photosynthetic Reaction Centers: Electric Field Effects on the Initial Electron Transfer Kinetics

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Perspectives in Photosynthesis

Part of the book series: The Jerusalem Symposia on Quantum Chemistry and Biochemistry ((JSQC,volume 22))

Abstract

The effect of an applied electric field on the kinetics of the initial electron transfer step in Rb. sphaeroides reaction centers has been measured in isotropic samples at 77 K. The rate of formation of

$$ {H_L}^{\underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle\cdot}$}}{ - } } $$

is slowed slightly upon application of an electric field of 106 V/cm. This result is consistent with earlier measurements of the electric field effect on the steady-state fluorescence [1,2]. No evidence was found for electron transfer down the M-side at the highest applied field.

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Author information

Authors and Affiliations

  1. Department of Chemistry, Stanford University, Stanford, California, 94305, USA

    Steven G. Boxer & David J. Lockhart

  2. Department of Chemistry, Washington University, St. Louis, Missouri, 63130, USA

    Christine Kirmaier & Dewey Holten

Authors
  1. Steven G. Boxer
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  2. David J. Lockhart
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  3. Christine Kirmaier
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  4. Dewey Holten
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Editor information

Editors and Affiliations

  1. Department of Chemistry, University of Tel-Aviv, Israel

    J. Jortner

  2. Institut de Biologie Physico-Chimique (Fondation Edmond de Rothschild), Paris, France

    B. Pullman

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© 1990 Kluwer Academic Publishers

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Boxer, S.G., Lockhart, D.J., Kirmaier, C., Holten, D. (1990). Mechanism of Charge Separation in Photosynthetic Reaction Centers: Electric Field Effects on the Initial Electron Transfer Kinetics. In: Jortner, J., Pullman, B. (eds) Perspectives in Photosynthesis. The Jerusalem Symposia on Quantum Chemistry and Biochemistry, vol 22. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0489-7_4

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  • DOI: https://doi.org/10.1007/978-94-009-0489-7_4

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-6706-5

  • Online ISBN: 978-94-009-0489-7

  • eBook Packages: Springer Book Archive

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