Materials Data on YbSi2Ni by Materials Project
YbNiSi2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Yb is bonded in a 10-coordinate geometry to four equivalent Ni and ten Si atoms. All Yb–Ni bond lengths are 3.02 Å. There are a spread of Yb–Si bond distances ranging from 3.04–3.25 Å. Ni is bonded in a 9-coordinate geometry to four equivalent Yb and five Si atoms. There are a spread of Ni–Si bond distances ranging from 2.29–2.39 Å. There are two inequivalent Si sites. In the first Si site, Si is bonded in a 9-coordinate geometry to six equivalent Yb, one Ni, and two equivalent Si atoms. Both Si–Si bond lengths are 2.37 Å. In the second Si site, Si is bonded in a 12-coordinate geometry to four equivalent Yb, four equivalent Ni, and four equivalent Si atoms. All Si–Si bond lengths are 2.81 Å.