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Towards artificial photosynthesis: ruthenium-manganese chemistry for energy production
2001 (English)In: Chemical Society Reviews, ISSN 0306-0012, E-ISSN 1460-4744, Vol. 30, no 1, 36-49 p.Article, review/survey (Refereed) Published
Abstract [en]

The synthesis and characterisation of supramolecular model systems mimicking the light reactions on the donor side of Photosystem II (PSII) in green plants have been reviewed. In these systems, manganese complexes and tyrosine are electron donors, modelling the manganese cluster and tyrosine(Z) in PSII. The donors have been covalently linked to a photosensitizer, a ruthenium(ii) tris-bipyridyl complex, that plays the role of the P-680 chlorophylls in PSII. It has been demonstrated that, in the presence of an external electron acceptor in solution, the model systems can undergo an intermolecular electron transfer from the photoexcited state of Ru-II to an acceptor, followed by an intramolecular electron transfer from the coordinated Mn complexes or the tyrosine unit to the photogenerated Ru-III. This leads to regeneration of the Ru-II and oxidation of the Mn complexes or generation of a tyrosine radical. The process closely mimics the primary reaction steps on the donor side of PSII.

Place, publisher, year, edition, pages
2001. Vol. 30, no 1, 36-49 p.
Keyword [en]
intramolecular electron-transfer, o bond formation, tyrosine y-z, photosystem-ii, oxygen evolution, water oxidation, complex, model, systems, plants
Identifiers
URN: urn:nbn:se:kth:diva-20295ISI: 000166454500005OAI: oai:DiVA.org:kth-20295DiVA: diva2:338989
Note
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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