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. 1982 Jan;79(2):413–417. doi: 10.1073/pnas.79.2.413

Picosecond photochemistry of a cofacial diporphyrin containing iron(III) and zinc(II): Mimicking electron transfer between cytochrome c and the primary electron donor in reaction centers of photosynthetic bacteria

I Fujita †, T L Netzel ‡,§, C K Chang , C-B Wang
PMCID: PMC345753  PMID: 16593145

Abstract

Comparison of picosecond kinetic and spectroscopic data for Zn octaethylporphine and Fe(III)Cl octaethylporphine with that for Zn—Fe(III)Cl, a cofacial diporphyrin composed of a Zn porphyrin covalently bound to an Fe(III)Cl porphyrin with two chains of five atoms each, supports the assignment of a light-driven electron transfer (k > 1011s-1) within Zn—Fe(III)Cl to form [Zn+·—Fe(II)]Cl. The kinetics (k ≈ 1010s-1) and thermodynamics of the reverse electron transfer are compared to those of a similar electron transfer in bacterial photosynthesis, the reduction of an oxidized bacteriochlorophyll dimer, (BChl)2+·, by Fe(II) cytochrome c.

Keywords: energy transduction, biomimetic charge separation

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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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