Title

Progress Toward a Molecular Mechanism of Water Oxidation in Photosystem II

Document Type

Article

Publication Date

5-5-2017

Abstract

©2017 by Annual Reviews. All rights reserved. The active site of photosynthetic water oxidation is the oxygen-evolving complex (OEC) in the photosystem II (PSII) reaction center. The OEC is a Mn4CaO5 cluster embedded in the PSII protein matrix, and it cycles through redox intermediates known as Si states (i 04). Significant progress has been made in understanding the inorganic and physical chemistry of states S0S3 through experiment and theory. The chemical steps from S3 to S0 are more poorly understood, however, because the identity of the substrate water molecules and the mechanism of OO bond formation are not well established. In this review, we highlight both the consensuses and the remaining challenges of PSII research.

Publication Source (Journal or Book title)

Annual Review of Physical Chemistry

First Page

101

Last Page

116

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