Theoretical studies of O-O bond formation in photosystem II.

  title={Theoretical studies of O-O bond formation in photosystem II.},
  author={Per E. M. Siegbahn},
  journal={Inorganic chemistry},
  volume={47 6},
The most critical part of dioxygen evolution in photosystem II is the O-O bond formation step. In order to reach an efficient mechanism, nature uses a unique oxygen-evolving complex (OEC) having four manganese and one calcium center. Even though the structure of the OEC has become much more clear during recent years, it has still been difficult to find a transition state (TS) for O-O bond formation with a sufficiently low barrier. However, about a year ago, a quite surprising type of TS was… CONTINUE READING

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