Materials Data on Ho2SiGe by Materials Project
Ho2GeSi crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are two inequivalent Ho sites. In the first Ho site, Ho is bonded in a 5-coordinate geometry to three equivalent Ge and four equivalent Si atoms. There are one shorter (2.96 Å) and two longer (3.16 Å) Ho–Ge bond lengths. All Ho–Si bond lengths are 2.95 Å. In the second Ho site, Ho is bonded in a 5-coordinate geometry to four equivalent Ge and three equivalent Si atoms. All Ho–Ge bond lengths are 2.95 Å. There are one shorter (2.95 Å) and two longer (3.17 Å) Ho–Si bond lengths. Ge is bonded in a 9-coordinate geometry to seven Ho and two equivalent Si atoms. Both Ge–Si bond lengths are 2.60 Å. Si is bonded in a 9-coordinate geometry to seven Ho and two equivalent Ge atoms.