Equilibrium/nonequilibrium initial configurations in forward/reverse electron transfer within mixed-metal hemoglobin hybrids.

@article{Patel2005EquilibriumnonequilibriumIC,
  title={Equilibrium/nonequilibrium initial configurations in forward/reverse electron transfer within mixed-metal hemoglobin hybrids.},
  author={Ami D. Patel and Judith M. Nocek and Brian M Hoffman},
  journal={Journal of the American Chemical Society},
  year={2005},
  volume={127 48},
  pages={16766-7}
}
In a protein-protein electron transfer (ET) photocycle, the "forward" ET reaction is initiated with the excited complex, [3DA], in an equilibrium ensemble of configurations, the majority of which exhibit less than the maximal ET matrix element. In contrast, the charge-separated intermediate complex is formed in a nonequilibrium set of configurations with maximal ET matrix elements and would be expected to return to the ground state with the largest rate constant possible unless conformational… CONTINUE READING