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. 1975 Sep;72(9):3270–3274. doi: 10.1073/pnas.72.9.3270

The triplet state in bacterial photosynthesis: Possible mechanisms of the primary photo-act

Marion C Thurnauer 1, Joseph J Katz 1, James R Norris 1
PMCID: PMC432970  PMID: 16592270

Abstract

In vitro and in vivo triplet state electron paramagnetic resonance (epr) spectra of bacteriochlorophylls (Bchls) show important differences in (a) electron spin polarization (esp), and (b) zero field splitting (ZFS) parameters. The unusual esp and ZFS properties of the observed in vivo triplet state are best interpreted as arising from a short-lived radical pair precursor (not directly observable by epr) formed in or with the special pair of bacteriochlorophyll molecules involved in the primary photo-act.

Keywords: electron paramagnetic resonance, electron spin polarization, radical pair, special pair

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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