Chlorophyll-b in glassy solution has a spin-polarized lowest triplet state at and above 7? K. Ths magnitude of the .).'\_, .: effect is different for MTHF and ethanol as soIvents, in contrast to what is found for the porphin free base. Chloro-\_-phyla-a does not exhibit spa-polar~ation under identi
Comments on the triplet-state spin polarization in photosynthetic bacteria
โ Scribed by A.M. Ponte Goncalvez; W.U. Spendel
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- English
- Weight
- 450 KB
- Volume
- 54
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
โฆ Synopsis
The triplet-state EPR spectra of photosynthetic bacteria reported in the hterature exhibit a unique spin polarization pattern, previously attributed to intermolecular processes such as electron transfer. We show here that another, purely intramolecular, model can also account for the observed spin polarization. New experimental results, obtained for a porphyrin triplet state, are used to illustrate the proposed interpretation.
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