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On the relation between absorption and fluorescence emission spectra of photosystems: Derivation of a Stepanov relation for pigment culsters

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Abstract

Stepanov (1957a, Soviet Physics-Doklady 2: 81–84) obtained an equation which relates the absorption spectrum and the fluorescence emission spectrum of a single dye molecule. Here, a similar equation is derived for a cluster of interacting pigments, e.g. the antenna pigments of a photosystem. This relation can be used to assess the possibility of occurrence of rapid exciton equilibration (Dau and Sauer, 1996, Biochim. Biophys. Acta, 1273: 175–190). The excited state potential of a pigment cluster is discussed and compared to the excited state potential of a single pigment.

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Abbreviations

Chl:

chlorophyll

EE:

exciton equilibrium

PS:

photosystem

RC:

reaction center

REE:

rapid exciton equilibration

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Dau, H. On the relation between absorption and fluorescence emission spectra of photosystems: Derivation of a Stepanov relation for pigment culsters. Photosynth Res 48, 139–145 (1996). https://doi.org/10.1007/BF00041004

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  • DOI: https://doi.org/10.1007/BF00041004

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