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DOE OSTI · 1737006

Materials Data on UC2 by Materials Project

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Abstract

UC2 is Pyrite structured and crystallizes in the cubic Pa-3 space group. The structure is three-dimensional. U6+ is bonded to six equivalent C3- atoms to form UC6 octahedra that share corners with twelve equivalent UC6 octahedra and corners with six equivalent CU3C tetrahedra. The corner-sharing octahedral tilt angles are 72°. All U–C bond lengths are 2.36 Å. C3- is bonded to three equivalent U6+ and one C3- atom to form CU3C tetrahedra that share corners with three equivalent UC6 octahedra and corners with fifteen equivalent CU3C tetrahedra. The corner-sharing octahedral tilt angles are 69°. The C–C bond length is 1.43 Å.

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36 MATERIALS SCIENCEC-Ucrystal structureUC2

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2020-05-03. Materials Data on UC2 by Materials Project. https://doi.org/10.17188/1737006

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