Materials Data on Sm3(GaNi3)2 by Materials Project

Abstract

Sm3(Ni3Ga)2 crystallizes in the cubic Im-3m space group. The structure is three-dimensional. Sm is bonded in a 12-coordinate geometry to eight equivalent Ni and four equivalent Ga atoms. There are four shorter (2.80 Å) and four longer (3.06 Å) Sm–Ni bond lengths. All Sm–Ga bond lengths are 3.19 Å. Ni is bonded in a 12-coordinate geometry to four equivalent Sm, six equivalent Ni, and two equivalent Ga atoms. There are four shorter (2.59 Å) and two longer (2.92 Å) Ni–Ni bond lengths. Both Ni–Ga bond lengths are 2.50 Å. Ga is bonded to six equivalent Sm and six equivalent Ni atoms to form a mixture of corner and face-sharing GaSm6Ni6 cuboctahedra.