Main Group Metal−Actinide Magnetic Coupling and Structural Response Upon U4+ Inclusion Into Bi, Tl/Bi, or Pb/Bi Cages - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of the American Chemical Society Année : 2016

Main Group Metal−Actinide Magnetic Coupling and Structural Response Upon U4+ Inclusion Into Bi, Tl/Bi, or Pb/Bi Cages

Résumé

The encapsulation of actinide ions in intermetalloid clusters has long been proposed but was never realized synthetically. We report the isolation and experimental, as well as quantum chemical, characterization of the uranium-centered clusters [U@Bi12]3−, [U@ Tl2Bi11]3−, [U@Pb7 Bi7]3−, and [U@Pb4 Bi9]3−, upon reaction of (EE′Bi2)2− (E = Ga, Tl, E′ = Bi; E = E′ = Pb) and [U(C5Me4H)3] or [U(C5Me4H)3Cl] in 1,2- diaminoethane. For [U@Bi12]3−, magnetic susceptibility measurements rationalize an unprecedented antiferromagnetic coupling between a magnetic U4+ site and a unique radical Bi12 7− shell.

Domaines

Matériaux

Dates et versions

hal-01356203 , version 1 (25-08-2016)

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Citer

Niels Lichtenberger, Robert J. Wilson, Armin R. Eulenstein, Werner Massa, Rodolphe Clérac, et al.. Main Group Metal−Actinide Magnetic Coupling and Structural Response Upon U4+ Inclusion Into Bi, Tl/Bi, or Pb/Bi Cages. Journal of the American Chemical Society, 2016, 138, pp. 9033-9036. ⟨10.1021/jacs.6b04363⟩. ⟨hal-01356203⟩

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