Materials Data on Zn3SiNi2 by Materials Project

Abstract

Ni2SiZn3 crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Ni is bonded in a 12-coordinate geometry to three equivalent Ni, six equivalent Zn, and three equivalent Si atoms. All Ni–Ni bond lengths are 2.59 Å. There are three shorter (2.50 Å) and three longer (2.76 Å) Ni–Zn bond lengths. All Ni–Si bond lengths are 2.33 Å. Zn is bonded in a 2-coordinate geometry to four equivalent Ni, eight equivalent Zn, and two equivalent Si atoms. There are four shorter (2.83 Å) and four longer (2.84 Å) Zn–Zn bond lengths. Both Zn–Si bond lengths are 2.76 Å. Si is bonded to six equivalent Ni and six equivalent Zn atoms to form face-sharing SiZn6Ni6 cuboctahedra.