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Catalytic Water Oxidation by Ruthenium Complexes Containing Negatively Charged Ligand Frameworks
Stockholm University, Faculty of Science, Department of Organic Chemistry.
Stockholm University, Faculty of Science, Department of Organic Chemistry.
Number of Authors: 2
2016 (English)In: The chemical record, ISSN 1527-8999, E-ISSN 1528-0691, Vol. 16, no 2, 940-963 p.Article in journal (Refereed) Published
Abstract [en]

Artificial photosynthesis represents an attractive way of converting solar energy into storable chemical energy. The H2O oxidation half-reaction, which is essential for producing the necessary reduction equivalents, is an energy-demanding transformation associated with a high kinetic barrier. Herein we present a couple of efficient Ru-based catalysts capable of mediating this four-proton-four-electron oxidation. We have focused on the incorporation of negatively charged ligands, such as carboxylate, phenol, and imidazole, into the catalysts to decrease the redox potentials. This account describes our work in designing Ru catalysts based on this idea. The presence of the negatively charged ligands is crucial for stabilizing the metal centers, allowing for light-driven H2O oxidation. Mechanistic details associated with the designed catalysts are also presented.

Place, publisher, year, edition, pages
2016. Vol. 16, no 2, 940-963 p.
Keyword [en]
electrochemistry, photochemistry, ruthenium, sustainable chemistry, water splitting
National Category
Organic Chemistry
Identifiers
URN: urn:nbn:se:su:diva-130880DOI: 10.1002/tcr.201500254ISI: 000374765700024PubMedID: 26991306OAI: oai:DiVA.org:su-130880DiVA: diva2:933900
Available from: 2016-06-07 Created: 2016-06-07 Last updated: 2016-06-07Bibliographically approved

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Kärkäs, Markus D.Åkermark, Björn
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