Materials Data on HoSi2Ni by Materials Project

Abstract

HoNiSi2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Ho is bonded in a 4-coordinate geometry to four equivalent Ni and ten Si atoms. All Ho–Ni bond lengths are 3.03 Å. There are a spread of Ho–Si bond distances ranging from 3.00–3.10 Å. Ni is bonded in a 9-coordinate geometry to four equivalent Ho and five Si atoms. There are one shorter (2.26 Å) and four longer (2.32 Å) Ni–Si bond lengths. There are two inequivalent Si sites. In the first Si site, Si is bonded in a 12-coordinate geometry to four equivalent Ho and four equivalent Ni atoms. In the second Si site, Si is bonded in a 9-coordinate geometry to six equivalent Ho, one Ni, and two equivalent Si atoms. Both Si–Si bond lengths are 2.37 Å.