Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/154807
Title: [UF6](2-): A molecular hexafluorido actinide(IV) complex with compensating spin and orbital magnetic moments
Author: Pedersen, Kasper S.
Meihaus, Katie R.
Rogalev, Andrei
Wilhelm, Fabrice
Aravena, Daniel
Amoza Dávila, Martín
Ruiz Sabín, Eliseo
Long, Jeffrey R.
Bendix, Jesper
Clerac, Rodolphe
Keywords: Metalls de terres rares
Imants
Urani
Espectroscòpia de raigs X
Rare earth metals
Magnets
Uranium
X-ray spectroscopy
Issue Date: 7-Aug-2019
Publisher: Wiley-VCH
Abstract: The first structurally characterized hexafluorido complex of a tetravalent actinide ion, the [UF6]2- anion, is reported in the (NEt4)2[UF6]2H2O salt (1). The weak magnetic response of 1 results from both U(IV) spin and orbital contributions, as established by combining X-ray magnetic circular dichroism (XMCD) spectroscopy and bulk magnetization measurements. The spin and orbital moments are virtually identical in magnitude, but opposite in sign, resulting in an almost perfect cancellation, which is corroborated by ab initio calculations. This work constitutes the first experimental demonstration of a seemingly non-magnetic molecular actinide complex carrying sizable spin and orbital magnetic moments.
Note: Versió postprint del document publicat a: https://doi.org/10.1002/anie.201905056
It is part of: Angewandte Chemie-International Edition, 2019, vol. 58, num. 44, p. 15650-15654
URI: http://hdl.handle.net/2445/154807
Related resource: https://doi.org/10.1002/anie.201905056
ISSN: 1433-7851
Appears in Collections:Articles publicats en revistes (Química Inorgànica i Orgànica)

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