Mixing of exciton and charge-transfer states in Photosystem II reaction centers: modeling of Stark spectra with modified Redfield theory.

@article{Novoderezhkin2007MixingOE,
  title={Mixing of exciton and charge-transfer states in Photosystem II reaction centers: modeling of Stark spectra with modified Redfield theory.},
  author={Vladimir I Novoderezhkin and Jan P. Dekker and Rienk van Grondelle},
  journal={Biophysical journal},
  year={2007},
  volume={93 4},
  pages={1293-311}
}
We propose an exciton model for the Photosystem II reaction center (RC) based on a quantitative simultaneous fit of the absorption, linear dichroism, circular dichroism, steady-state fluorescence, triplet-minus-singlet, and Stark spectra together with the spectra of pheophytin-modified RCs, and so-called RC5 complexes that lack one of the peripheral chlorophylls. In this model, the excited state manifold includes a primary charge-transfer (CT) state that is supposed to be strongly mixed with… CONTINUE READING