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Substituent Effects in Molecular Ruthenium Water Oxidation Catalysts Based on Amide Ligands
Stockholm University, Faculty of Science, Department of Organic Chemistry.
Stockholm University, Faculty of Science, Department of Organic Chemistry.
Stockholm University, Faculty of Science, Department of Organic Chemistry.
Stockholm University, Faculty of Science, Department of Organic Chemistry.
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Number of Authors: 7
2017 (English)In: ChemCatChem, ISSN 1867-3880, E-ISSN 1867-3899, Vol. 9, no 9, 1583-1587 p.Article in journal (Refereed) Published
Abstract [en]

The production of clean and sustainable energy is considered as one of the most urgent issues for our society. Mastering the oxidation of water to dioxygen is essential for the production of solar fuels. A study of the influence of the substituents on the catalytic activity of a series of mononuclear Ru complexes (2a-e) based on a tetradentate ligand framework is presented. At neutral pH, using [Ru(bpy)(3)](PF6)(3) (bpy=2,2'-bipyridine) as the terminal oxidant, a good correlation between the turnover frequency (TOF) and the Hammett sigma(meta) parameters was obtained. Additionally, a general pathway for the deactivation of Ru-based catalysts 2a-e during the catalytic oxidation of water through poisoning by carbon monoxide was demonstrated. These results highlight the importance of ligand design for fine-tuning the catalytic activity of water oxidation catalysts.

Place, publisher, year, edition, pages
2017. Vol. 9, no 9, 1583-1587 p.
Keyword [en]
homogeneous catalysis, O-O bond formation, oxidation, ruthenium, water splitting
National Category
Organic Chemistry
Identifiers
URN: urn:nbn:se:su:diva-144650DOI: 10.1002/cctc.201601382ISI: 000400982900008OAI: oai:DiVA.org:su-144650DiVA: diva2:1115947
Available from: 2017-06-27 Created: 2017-06-27 Last updated: 2017-06-27Bibliographically approved

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Abdel-Magied, Ahmed F.Shatskiy, AndreyKärkäs, Markus D.Åkermark, BjörnJohnston, Eric V.
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