[UF
<sub>6</sub>
]
<sup>2−</sup>
: A Molecular Hexafluorido Actinide(IV) Complex with Compensating Spin and Orbital Magnetic Moments
作者:Kasper S. Pedersen、Katie R. Meihaus、Andrei Rogalev、Fabrice Wilhelm、Daniel Aravena、Martín Amoza、Eliseo Ruiz、Jeffrey R. Long、Jesper Bendix、Rodolphe Clérac
DOI:10.1002/anie.201905056
日期:2019.10.28
The first structurally characterized hexafluorido complex of a tetravalentactinide ion, the [UF6 ]2- anion, is reported in the (NEt4 )2 [UF6 ]⋅2 H2 O salt (1). The weak magnetic response of 1 results from both UIV 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