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Cyclometalated Iridium(III) Aquo Complexes: Efficient and Tunable Catalysts for the Homogeneous Oxidation of Water
Abstract
A series of bis-phenylpyridine, bis-aquo iridium(III) complexes is herein shown to robustly and efficiently catalyze the oxidation of water to dioxygen in the presence of a sacrificial oxidant. Through substitution on the cyclometalating ligands of these complexes, it is shown that a broad range of oxidation potentials can be achieved within this class of catalyst. Parallel, dynamic monitoring of oxygen evolution, made possible by equipping reaction vessels with pressure-voltage transducers, facilitates correlation of these complexes' ionization potentials with their respective activity toward water oxidation. The importance of these catalysts lies in (A) their ability to oxidize water in a purely aqueous medium, (B) their simplicity of design, (C) their durability, and (D) the ease with which they can be tuned to accommodate the electrochemical needs of photosensitizers in hypothetical photochemical water oxidation and full artificial photosynthetic schemes.
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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
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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
Recent Developments in the Application of Phosphorescent Iridium(III) Complex Systems
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Water-oxidation catalysis by manganese in a geochemical-like cycle
Hocking, R. K., Brimblecombe, R., Chang, L.-Y., Singh, A., Cheah, M. H., Glover, C., Casey, W. H., & Spiccia, L. (2011) · Nature Chemistry · doi:10.1038/nchem.1049 · Cited by 517
A Biomimetic Copper Water Oxidation Catalyst with Low Overpotential
Zhang, T., Wang, C., Liu, S., Wang, J.-L., & Lin, W. (2014) · Journal of the American Chemical Society · doi:10.1021/ja409267p · Cited by 389
Finding the Way to Solar Fuels with Dye-Sensitized Photoelectrosynthesis Cells
Brennaman, M. K., Dillon, R. J., Alibabaei, L., Gish, M. K., Dares, C. J., Ashford, D. L., House, R. L., Meyer, G. J., Papanikolas, J. M., & Meyer, T. J. (2016) · Journal of the American Chemical Society · doi:10.1021/jacs.6b06466 · Cited by 369
Song, F., Ding, Y., Ma, B., Wang, C., Wang, Q., Du, X., Fu, S., & Song, J. (2013) · Energy & Environmental Science · doi:10.1039/c3ee24433d · Cited by 314
Metadata
- Authors
- McDaniel, N. D., Coughlin, F. J., Tinker, L. L., & Bernhard, S.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-12-07
- Volume
- 130
- Issue
- 1
- Pages
- 210-217
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2070035569
- Cited by
- 610
- References
- 0
- FWCI
- 21.50
- Type
- journal article
- Language
- en
- Open access
- closed
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