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Journal Articles Chemical Communications Year : 2016

Reductive disproportionation of nitric oxide mediated by low-valent uranium

Abstract

The reductive disproportionation of nitric oxide (1 atm) is mediated by the bulky UIII aryloxide [UIII(OArAd,Ad,Me)3] (Ad,Ad,MeArO = O-C6H2-2,6-Ad-4-Me) (1) to form the UV terminal oxo species [(Ad,Ad,MeArO)3UV(O)] (2) and N2O, as confirmed by single crystal X-ray diffraction and GC-MS measurements. The reaction is quantitative in the solid state. Mechanistic and theoretical studies of the reaction suggest that the N–N bond is formed by the coupling of an η1-O bound nitric oxide ligand with gaseous NO to give an η1-(N2O2)1− intermediate prior to the spontaneous extrusion of N2O to yield the UV terminal oxo species

Dates and versions

hal-01968833 , version 1 (03-01-2019)

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Cite

Christopher Hoerger, Henry La Pierre, Laurent Maron, Andreas Scheurer, Frank Heinemann, et al.. Reductive disproportionation of nitric oxide mediated by low-valent uranium. Chemical Communications, 2016, 52 (72), pp.10854-10857. ⟨10.1039/c6cc06095a⟩. ⟨hal-01968833⟩
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