Magnetic-Field-Induced Orientation of Photosynthetic Reaction Centers As Revealed by Time-Resolved W-Band EPR of Spin-Correlated Radical Pairs

Magnetic-Field-Induced Orientation of Photosynthetic Reaction Centers As Revealed by Time-Resolved W-Band EPR of Spin-Correlated Radical Pairs

The spin-polarized W-band EPR spectra of the secondary radical pair in plant photosystem I indicate a magnetic-field-induced orientation of the photosynthetic reaction centers in the field of the EPR spectrometer. This orientation arises due to the anisotropy of the diamagnetic susceptibility of the...

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Bibliographic Details
Published in:The journal of physical chemistry. B Vol. 103; no. 49; pp. 10733 - 10736
Main Authors: Berthold, Thomas, Bechtold, Michael, Heinen, Ulrich, Link, Gerhard, Poluektov, Oleg, Utschig, Lisa, Tang, Jau, Thurnauer, Marion C, Kothe, Gerd
Format: Journal Article
Language:English
Published: American Chemical Society 09-12-1999
Online Access:Get full text
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Summary:The spin-polarized W-band EPR spectra of the secondary radical pair in plant photosystem I indicate a magnetic-field-induced orientation of the photosynthetic reaction centers in the field of the EPR spectrometer. This orientation arises due to the anisotropy of the diamagnetic susceptibility of the reaction center protein. Analysis of the angular-dependent EPR spectra on the basis of the spin-correlated radical pair concept provides new information on the cofactor arrangement in plant photosystem I.
Bibliography:istex:CDCB1B586C522898B10208C5F3AA4AD358F08D41
ark:/67375/TPS-M2V54ZHP-W
ISSN:1520-6106
1520-5207
DOI:10.1021/jp992011o