Materials Data on UCuO4 by Materials Project
CuUO4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. U6+ is bonded to six O2- atoms to form corner-sharing UO6 octahedra. The corner-sharing octahedral tilt angles are 50°. There are a spread of U–O bond distances ranging from 1.92–2.27 Å. Cu2+ is bonded in a distorted square co-planar geometry to four O2- atoms. There is two shorter (1.94 Å) and two longer (1.96 Å) Cu–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal planar geometry to two equivalent U6+ and one Cu2+ atom. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one U6+ and one Cu2+ atom.
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