Journal
INORGANIC CHEMISTRY
Volume 48, Issue 13, Pages 5596-5598Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ic900538g
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Funding
- Department of Energy [DE-FG02-07ER15906]
- U.S. Department of Energy (DOE) [DE-FG02-07ER15906] Funding Source: U.S. Department of Energy (DOE)
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The first structurally characterized iridium-substituted polyoxometalate, K-14[(IrCl4)KP2W20O72]center dot 23H(2)O [1; orthorhombic Pnnm, with a = 18.6546(7) angstrom, b = 19.5192(6) angstrom, c = 14.8670(5) angstrom, V = 5413.4(3) angstrom(3), and Z = 2, final R = 0.0730], is reported. Elemental analysis, X-ray crystallography, and NMR all indicate one Ir atom in each molecule, while IR and electronic absorption spectroscopy, thermal gravimetric analysis, and electrochemistry all indicate its purity in both solid and solution states. Complex 1 is a molecular model of iridium supported on redox-active metal oxides, and aqueous solutions of 1 catalyze oxidation of water to O-2.
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