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  Artificial photosynthesis: understanding water splitting in nature

Cox, N., Pantazis, D. A., Neese, F., & Lubitz, W. (2015). Artificial photosynthesis: understanding water splitting in nature. Interface Focus, 5(3): 20150009. doi:10.1098/rsfs.2015.0009.

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 Creators:
Cox, Nicholas1, Author              
Pantazis, Dimitrios A.2, Author              
Neese, Frank2, Author              
Lubitz, Wolfgang1, Author              
Affiliations:
1Research Department Lubitz, Max Planck Institute for Chemical Energy Conversion, Max Planck Society, ou_3023873              
2Research Department Neese, Max Planck Institute for Chemical Energy Conversion, Max Planck Society, ou_3023886              

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Free keywords: photosynthesis; photosystem II; water splitting; H2 production
 Abstract: In the context of a global artificial photosynthesis (GAP) project, we review our current work on nature's water splitting catalyst. In a recent report (Cox et al. 2014 Science 345, 804–808 (doi:10.1126/science.1254910)), we showed that the catalyst—a Mn4O5Ca cofactor—converts into an ‘activated’ form immediately prior to the O–O bond formation step. This activated state, which represents an all MnIV complex, is similar to the structure observed by X-ray crystallography but requires the coordination of an additional water molecule. Such a structure locates two oxygens, both derived from water, in close proximity, which probably come together to form the product O2 molecule. We speculate that formation of the activated catalyst state requires inherent structural flexibility. These features represent new design criteria for the development of biomimetic and bioinspired model systems for water splitting catalysts using first-row transition metals with the aim of delivering globally deployable artificial photosynthesis technologies.

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Language(s): eng - English
 Dates: 2015-06-06
 Publication Status: Published in print
 Pages: 10
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1098/rsfs.2015.0009
 Degree: -

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Title: Interface Focus
Source Genre: Journal
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Publ. Info: London : The Royal Society
Pages: - Volume / Issue: 5 (3) Sequence Number: 20150009 Start / End Page: - Identifier: ISSN: 2042-8898
CoNE: https://pure.mpg.de/cone/journals/resource/2042-8898