Materials Data on Tb2SiGe by Materials Project
Tb2GeSi crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are two inequivalent Tb sites. In the first Tb site, Tb is bonded in a 5-coordinate geometry to three equivalent Ge and four equivalent Si atoms. There are one shorter (3.01 Å) and two longer (3.18 Å) Tb–Ge bond lengths. All Tb–Si bond lengths are 2.98 Å. In the second Tb site, Tb is bonded in a 5-coordinate geometry to four equivalent Ge and three equivalent Si atoms. All Tb–Ge bond lengths are 2.99 Å. There are one shorter (2.98 Å) and two longer (3.20 Å) Tb–Si bond lengths. Ge is bonded in a 9-coordinate geometry to seven Tb and two equivalent Si atoms. Both Ge–Si bond lengths are 2.60 Å. Si is bonded in a 9-coordinate geometry to seven Tb and two equivalent Ge atoms.