The [U2F12]2- Anion of Sr[U2F12]
Research output: Contribution to journal › Article › Scientific › peer-review
- University of Marburg
- Max Planck Institute for Chemical Energy Conversion
The D2h-symmetric dinuclear complex anion [U2F12]2- of pastel green Sr[U2F12] shows a hitherto unknown structural feature: The coordination polyhedra around the U atoms are edge-linked monocapped trigonal prisms, the UV atoms are therefore seven-coordinated. This leads to a U-U distance of 3.8913(6)Å. A weak UV-UV interaction is observed for the dinuclear [U2F12]2- complex and described by the antiferromagnetic exchange Jexp of circa -29.9cm-1. The crystalline compound can be easily prepared from SrF2 and β-UF5 in anhydrous hydrogen fluoride (aHF) at room temperature. It was studied by means of single crystal X-ray diffraction, IR, Raman and UV/VIS spectroscopy, magnetic measurements, and by molecular as well as by solid-state quantum chemical calculations.
|Publication status||Published - Jan 2018|
|MoE publication type||A1 Journal article-refereed|
- Fluorine, Hexafluoridouranate(V), Magnetic properties, Quantum chemical calculations, Uranium