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Guy M. Jones, Prof. Polly L. Arnold and Dr. Jason B. Love Controlled Deprotection and Reorganization of Uranyl Oxo Groups in a Binuclear Macrocyclic Environment Angewandte Chemie International Edition 51

Article first published online: 6 NOV 2012 | DOI: 10.1002/anie.201207609

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Switching on uranium(V) reactivity: The silylated uranium(V) dioxo complex [(Me3SiOUO)2(L)2] (A) is inert to oxidation, but after two-electron reduction to [(Me3SiOUO)2(L)]2− (1), it can be desilylated to form [OU(μ-O)2UO(L)2]2− (2) with reinstated uranyl character. Removal of the silyl group uncovers new redox and oxo rearrangement chemistry for uranium, thus reforming the uranyl motif and involving the UVI/V couple in dioxygen reduction.

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