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Redox control of oxoiron(IV)
The oxygen-evolving centre in the protein complex photosystem II involves Ca2+ within a high-valent oxomanganese cluster, but the role of Ca2+ has yet to be clarified. Interestingly, the electron-transfer behaviour of a non-haem oxoiron(IV) complex has now been found to be significantly altered by Lewis acid metal-ion binding to the oxo atom.
- Kenneth D. Karlin
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All together now
A promising material for splitting water relies on the favourable arrangement of photosensitive and catalytic components.
- Gavin Armstrong
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