The DOI matches its Crossref record; 26 of the 26 references it cites were found in a registry or an index.
Isolated Seven-Coordinate Ru(IV) Dimer Complex with [HOHOH]− Bridging Ligand as an Intermediate for Catalytic Water Oxidation
Abstract
With the inspiration from an oxygen evolving complex (OEC) in Photosystem II (PSII), a mononuclear Ru(II) complex with a tetradentate ligand containing two carboxylate groups has been synthesized and structurally characterized. This Ru(II) complex showed efficient catalytic properties toward water oxidation by the chemical oxidant cerium(IV) ammonium nitrate. During the process of catalytic water oxidation, Ru(III) and Ru(IV) species have been successfully isolated as intermediates. To our surprise, X-ray crystallography together with HR-MS revealed that the Ru(IV) species is a seven-coordinate Ru(IV) dimer complex containing a [HOHOH](-) bridging ligand. This bridging ligand has a short O...O distance and is hydrogen bonded to two water molecules. The discovery of this very uncommon seven-coordinate Ru(IV) dimer together with a hydrogen bonding network may contribute to a deeper understanding of the mechanism for catalytic water oxidation. It will also provide new possibilities for the design of more efficient catalysts for water oxidation, which is the key step for solar energy conversion into hydrogen by light-driven water splitting, the ultimate challenge in artificial photosynthesis.
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Cites
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Self-citation
Cited by
Chatenet, M., Pollet, B. G., Dekel, D. R., Dionigi, F., Deseure, J., Millet, P., Braatz, R. D., Bazant, M. Z., Eikerling, M., Staffell, I., et al. (2022) · Chemical Society Reviews · doi:10.1039/d0cs01079k · Cited by 2,025
The Mechanism of Water Oxidation: From Electrolysis via Homogeneous to Biological Catalysis
Dau, H., Limberg, C., Reier, T., Risch, M., Roggan, S., & Strasser, P. (2010) · ChemCatChem · doi:10.1002/cctc.201000126 · Cited by 1,783
Artificial Photosynthesis: Molecular Systems for Catalytic Water Oxidation
Kärkäs, M. D., Verho, O., Johnston, E. V., & Åkermark, B. (2014) · Chemical Reviews · doi:10.1021/cr400572f · Cited by 1,376
A molecular ruthenium catalyst with water-oxidation activity comparable to that of photosystem II
Duan, L., Bozoglian, F., Mandal, S., Stewart, B., Privalov, T., Llobet, A., & Sun, L. (2012) · Nature Chemistry · doi:10.1038/nchem.1301 · Cited by 1,257
Self-citationYou, Y., & Nam, W. (2012) · Chemical Society Reviews · doi:10.1039/c2cs35171d · Cited by 668
Metadata
- Authors
- Duan, L., Fischer, A., Xu, Y., & Sun, L.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-07-14
- Volume
- 131
- Issue
- 30
- Pages
- 10397-10399
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2023879527
- Cited by
- 522
- References
- 26
- FWCI
- 19.78
- Type
- journal article
- Language
- en
- Open access
- closed
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- Duan, L., Fischer, A., Xu, Y., & Sun, L. (2009). Isolated Seven-Coordinate Ru(IV) Dimer Complex with [HOHOH]− Bridging Ligand as an Intermediate for Catalytic Water Oxidation. Journal of the American Chemical Society. https://doi.org/10.1021/ja9034686
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