Reduction and selective oxo group silylation of the uranyl dication

Polly L. Arnold (), Dipti Patel, Claire Wilson and Jason B. Love ()
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Polly L. Arnold: School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, UK
Dipti Patel: School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, UK
Claire Wilson: Rigaku Europe, Chaucer Business Park, Watery Lane, Sevenoaks, Kent TN15 6QY, UK
Jason B. Love: School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, UK

Nature, 2008, vol. 451, issue 7176, 315-317

Abstract: Uranium on the move Uranium is present almost everywhere in the environment as the highly soluble and mobile uranyl dication UO22+, which is also a major radioactive pollutant from the nuclear power and mining industries. The compound is chemically inert because of unusually strong bonds between the uranium atom and its two oxo groups. Arnold et al. now report that one uranyl oxo group can be made to undergo radical reactions normally associated only with transition metal oxo groups, if the strong O=U=O bonding is disrupted by placing the dication within an appropriate rigid molecular framework. Once put in the spot, the uranyl dication undergoes both single-electron reduction and oxo-group functionalization to form unique pentavalent uranyl compounds. These transformations might lead to strategies for manipulating and processing uranium in its most common form in solution.

Date: 2008
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DOI: 10.1038/nature06467

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