Materials Data on UNiSn by Materials Project
UNiSn is half-Heusler structured and crystallizes in the cubic F-43m space group. The structure is three-dimensional. U is bonded in a 4-coordinate geometry to four equivalent Ni and six equivalent Sn atoms. All U–Ni bond lengths are 2.75 Å. All U–Sn bond lengths are 3.17 Å. Ni is bonded in a body-centered cubic geometry to four equivalent U and four equivalent Sn atoms. All Ni–Sn bond lengths are 2.75 Å. Sn is bonded in a distorted q6 geometry to six equivalent U and four equivalent Ni atoms.