Theoretical calculations of kinetics of the radical pair PF state in bacterial photosynthesis

✍ Scribed by J. Tang; J.R. Norris

• Book ID: 103021123
• Publisher: Elsevier Science
• Year: 1982
• Tongue: English
• Weight: 392 KB
• Volume: 92
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(82)80091-2

✦ Synopsis

Czdcul3r~on~ oithe ttmc evolution oi the population tn the transtent radical patt PF state and the magnettc field depen. dcnce of the eficcurc decay time me presented A gcner~l treatment is proposed to mclude (1) unequal dray rates kT and ks for Ihe ln~+=r md the W-I&% (2) Ihe ~IUOUOPIE elecuon-elcmon dlpoku intencuon and (3) the multiple nude= hyperfiie mtcractton. It 15 found that the dlpolar interaction 3nd the exchange Interaction have a strong impact on [he tield dependence oi the eiicctnc de=) lime. In addwon, rhc umc evolution of the PF popuLtmn is found to be qu3+z\ponenttil ior hT > ks, and the effecuvc decay rate is detrrmincd much more by the smglet decay rate thjn the Inplrt dccay nte 3s long as domtnxtt spm-sptn interactIons are prwnt. The decay curve becomes nonexponenttal as ks becomes laker than AT.