✦ LIBER ✦
Superexchange electron-transfer reactions in a three-component system. The spin-boson model for photosynthesis
✍ Scribed by Jau Tang
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 476 KB
- Volume
- 217
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
✦ Synopsis
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) group with S= 1 is assumed instead of a spinor of SU(2) with S= l/2. The derivation has taken into consideration the quantum tunneling effects due to high-frequency intramolecular nuclear motion.