Correlation of structural and spectroscopic properties of a photosynthetic reaction center

W. Zinth, E. W. Knapp, S. F. Fischer, W. Kaiser, J. Deisenhofer, H. Michel

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Abstract

Polarized spectra of absorption and light-induced absorbance changes are presented for the crystallized reaction centers of Rhodopseudomonas viridis. We find that a model based on extended dipole interaction between all six pigments is capable of interpreting detailed features such as the contributions from the individual pigments to the various absorption peaks. Even though the pigments are arranged in approximate C2 symmetry, the optical spectra together with the calculations reflect deviations from this symmetry, which may be important in understanding the electron pathway.

Original languageEnglish (US)
Pages (from-to)1-4
Number of pages4
JournalChemical Physics Letters
Volume119
Issue number1
DOIs
StatePublished - Aug 23 1985

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ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces

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