Materials Data on UPt2 by Materials Project
UPt2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. U4+ is bonded in a 4-coordinate geometry to eleven Pt2- atoms. There are a spread of U–Pt bond distances ranging from 2.81–3.54 Å. There are two inequivalent Pt2- sites. In the first Pt2- site, Pt2- is bonded to six equivalent U4+ and six Pt2- atoms to form a mixture of distorted edge, face, and corner-sharing PtU6Pt6 cuboctahedra. There are two shorter (2.83 Å) and four longer (2.85 Å) Pt–Pt bond lengths. In the second Pt2- site, Pt2- is bonded in a 5-coordinate geometry to five equivalent U4+ and four equivalent Pt2- atoms.
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