Materials Data on URe2 by Materials Project
URe2 is Hexagonal Laves structured and crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. U is bonded in a 10-coordinate geometry to one U and twelve Re atoms. The U–U bond length is 2.66 Å. There are a spread of U–Re bond distances ranging from 3.06–3.28 Å. There are three inequivalent Re sites. In the first Re site, Re is bonded to six equivalent U and six Re atoms to form a mixture of edge, face, and corner-sharing ReU6Re6 cuboctahedra. There are two shorter (2.63 Å) and four longer (2.64 Å) Re–Re bond lengths. In the second Re site, Re is bonded to six equivalent U and six Re atoms to form a mixture of edge, face, and corner-sharing ReU6Re6 cuboctahedra. There are a spread of Re–Re bond distances ranging from 2.67–2.85 Å. In the third Re site, Re is bonded to six equivalent U and six Re atoms to form a mixture of edge, face, and corner-sharing ReU6Re6 cuboctahedra.