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A New Family of Ru Complexes for Water Oxidation
Abstract
Reaction of the bridging ligand 3,6-bis-[6'-(1' ',8' '-naphthyrid-2' '-yl)-pyrid-2'-yl]pyridazine (1) with [Ru(DMSO)4Cl2] in aqueous ethanol followed by excess 4-substituted pyridine (4-R-py) in the presence of triethylamine provides a series of three well-organized dinuclear complexes characterized by 1H NMR, MS, and X-ray. Mononuclear analogues are prepared from 4-tert-butyl-2,6-di(1',8'-naphthyrid-2'-yl)pyridine (5) and characterized in a similar fashion. All six complexes show electronic absorption and redox properties consistent with the electron donor/acceptor ability of the axial 4-R-py ligand. When an acetonitrile solution of the catalyst is added to an aqueous Ce(IV)-CF3SO3H solution (pH = 1.0) at 24 degrees C, oxygen evolution is observed for both mono and dinuclear systems. Turnover numbers range from 50 to 3200 with the best results being found when the axial ligand is 4-methylpyridine (mononuclear TN = 580 and dinuclear TN = 3200).
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Cites
Catalytic oxidation of water by an oxo-bridged ruthenium dimer
Gersten, S. W., Samuels, G. J., & Meyer, T. J. (1982) · Journal of the American Chemical Society · doi:10.1021/ja00378a053 · Cited by 958
A Functional Model for O-O Bond Formation by the O 2 -Evolving Complex in Photosystem II
Limburg, J., Vrettos, J. S., Liable-Sands, L. M., Rheingold, A. L., Crabtree, R. H., & Brudvig, G. W. (1999) · Science · doi:10.1126/science.283.5407.1524 · Cited by 729
Synthetic Water-Oxidation Catalysts for Artificial Photosynthetic Water Oxidation
Rüttinger, W., & Dismukes, G. C. (1997) · Chemical Reviews · doi:10.1021/cr950201z · Cited by 725
Cheon, K. S., Selinger, J. V., & Green, M. M. (2000) · Angewandte Chemie International Edition · doi:10.1002/(sici)1521-3773(20000417)39:8<1482::aid-anie1482>3.0.co;2-7 · Cited by 99
Cited by
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
A Fast Soluble Carbon-Free Molecular Water Oxidation Catalyst Based on Abundant Metals
Yin, Q., Tan, J. M., Besson, C., Geletii, Y. V., Musaev, D. G., Kuznetsov, A. E., Luo, Z., Hardcastle, K. I., & Hill, C. L. (2010) · Science · doi:10.1126/science.1185372 · Cited by 1,438
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
Visible Light Water Splitting Using Dye-Sensitized Oxide Semiconductors
Youngblood, W. J., Lee, S.-H. A., Maeda, K., & Mallouk, T. E. (2009) · Accounts of Chemical Research · doi:10.1021/ar9002398 · Cited by 1,011
Recent Developments in the Application of Phosphorescent Iridium(III) Complex Systems
Ulbricht, C., Beyer, B., Friebe, C., Winter, A., & Schubert, U. S. (2009) · Advanced Materials · doi:10.1002/adma.200803537 · Cited by 746
Metadata
- Authors
- Zong, R., & Thummel, R. P.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2005-08-27
- Volume
- 127
- Issue
- 37
- Pages
- 12802-12803
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2074880155
- Cited by
- 565
- References
- 4
- FWCI
- 10.43
- Type
- journal article
- Language
- en
- Open access
- closed
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