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DOE OSTI · 1301376

Materials Data on Rb2UO4 by Materials Project

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Abstract

Rb2UO4 is (La,Ba)CuO4 structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Rb1+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Rb–O bond distances ranging from 2.96–3.11 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 (2.19 Å) U–O bond lengths. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to five equivalent Rb1+ and one U6+ atom. In the second O2- site, O2- is bonded in a distorted linear geometry to four equivalent Rb1+ and two equivalent U6+ atoms.

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36 MATERIALS SCIENCEcrystal structureO-Rb-URb2UO4

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2020-07-16. Materials Data on Rb2UO4 by Materials Project. https://doi.org/10.17188/1301376

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