Materials Data on Cs2UO4 by Materials Project
Cs2UO4 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Cs1+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Cs–O bond distances ranging from 3.16–3.36 Å. U6+ is bonded to six O2- atoms to form corner-sharing UO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are two shorter (1.95 Å) and four longer (2.21 Å) U–O bond lengths. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted linear geometry to four equivalent Cs1+ and two equivalent U6+ atoms. In the second O2- site, O2- is bonded in a distorted single-bond geometry to five equivalent Cs1+ and one U6+ atom.
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