期刊
NATURE CHEMISTRY
卷 2, 期 12, 页码 1056-1061出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/NCHEM.904
关键词
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资金
- EPSRC(UK)
- EaStCHEM
- University of Edinburgh
- CEA
- CNRS
- UPS
- EPSRC [EP/G038945/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/G038945/1] Funding Source: researchfish
The oxo groups in the uranyl ion [UO2](2+)-one of many oxo cations formed by metals from across the periodic table-are particularly inert, which explains the dominance of this ion in the laboratory and its persistence as an environmental contaminant. In contrast, transition metal oxo (M=O) compounds can be highly reactive and carry out difficult reactions such as the oxygenation of hydrocarbons. Here we show how the sequential addition of a lithium metal base to the uranyl ion constrained in a 'Pacman' environment results in lithium coordination to the U=O bonds and single-electron reduction. This reaction depends on the nature and stoichiometry of the lithium reagent and suggests that competing reduction and C-H bond activation reactions are occurring.
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