Materials Data on Y4MgNi by Materials Project

Abstract

Y4NiMg crystallizes in the cubic F-43m space group. The structure is three-dimensional. Mg is bonded to three equivalent Mg and nine Y atoms to form a mixture of face and corner-sharing MgY9Mg3 cuboctahedra. All Mg–Mg bond lengths are 3.09 Å. There are a spread of Mg–Y bond distances ranging from 3.29–3.52 Å. There are three inequivalent Y sites. In the first Y site, Y is bonded in a bent 150 degrees geometry to two equivalent Mg, four equivalent Y, and two equivalent Ni atoms. All Y–Y bond lengths are 3.63 Å. Both Y–Ni bond lengths are 2.80 Å. In the second Y site, Y is bonded in a 4-coordinate geometry to two equivalent Mg, ten Y, and two equivalent Ni atoms. There are two shorter (3.53 Å) and four longer (3.56 Å) Y–Y bond lengths. Both Y–Ni bond lengths are 3.53 Å. In the third Y site, Y is bonded in a 3-coordinate geometry to three equivalent Mg, three equivalent Y, and three equivalent Ni atoms. All Y–Ni bond lengths are 2.81 Å. Ni is bonded in a 6-coordinate geometry to nine Y atoms.