Uranyl oxo activation and functionalization by metal cation coordination - Archive ouverte HAL Access content directly
Journal Articles Nature Chemistry Year : 2010

Uranyl oxo activation and functionalization by metal cation coordination

(1) , (1) , (1) , (2, 3) , (2, 3) , (1) , (1)
1
2
3

Abstract

The oxo groups in the uranyl ion [UO$_2$]$^{2+}$ , 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.
Fichier principal
Vignette du fichier
Uranyl_oxo_activation_and_functionalization_by_metal_cation_coordination.pdf (780.1 Ko) Télécharger le fichier
Origin : Publisher files allowed on an open archive
Loading...

Dates and versions

cea-02060610 , version 1 (26-04-2019)

Identifiers

Cite

Polly L. Arnold, Anne-Frédérique Pécharman, Emmalina Hollis, Ahmed Yahia, Laurent Maron, et al.. Uranyl oxo activation and functionalization by metal cation coordination. Nature Chemistry, 2010, 2 (12), pp.1056-1061. ⟨10.1038/nchem.904⟩. ⟨cea-02060610⟩
57 View
259 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More