The rate expression for the superexchange reaction in a three-component system, involving a donor, a bridging intermediate and a distant acceptor, is derived using the spin-boson model for the primary electron transfer in a photosynthetic reaction center. In this model, a vector spin for SU( 3) grou
Electron spin polarization in a three-electron spin system. An application to bacterial photosynthesis
β Scribed by A.J. Hoff; P.J. Hore
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 663 KB
- Volume
- 108
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
β¦ Synopsis
CkxArtions
on a system consisting of' three rlcctron spins and one nuclear spin arc presented and their implications for bactcri4 photosynthesis discussed. Comparison with espcrimental measurements of electron spin polarization in prc-reduced photosynthrtic reaction ccnircs lcads to rhc conclusion that the cschanjic interaction witltin the primary radical pair is posifire and less than 0.8 mT when the g values of the photoinduced radicals are taken to be those measured for the isolated radical spccics.
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The uniform electron fluid is the reference model for density functional calculations. Even for this system, many-body perturbation theory, and related methods become questionable when the density parameter r s exceeds unity. Hence, quantum Monte Carlo (QMC) simulation has been almost the only appli
ZFS parameters for the title chlorophylls in both ordi'nary and fully dcuterated form have been d&mined under esperimental conditions that auow the aggregation state of rhe chlorophylls to be specified. The triplet state spectra are polarized. The electron spin polarization (ESP) con be analyzed by