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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
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https://hal.insa-toulouse.fr/hal-01968833
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Submitted on : Thursday, January 3, 2019 - 12:24:14 PM
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  • HAL Id : hal-01968833, version 1

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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, Royal Society of Chemistry, 2016, 52 (72), pp.10854-10857. ⟨hal-01968833⟩

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