Materials Data on Tm2Ge3 by Materials Project
Tm2Ge3 crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. Tm is bonded in a 9-coordinate geometry to nine Ge atoms. There are a spread of Tm–Ge bond distances ranging from 2.98–3.15 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to six equivalent Tm and three equivalent Ge atoms. There are one shorter (2.52 Å) and two longer (2.53 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded in a 6-coordinate geometry to six equivalent Tm atoms. In the third Ge site, Ge is bonded in a 9-coordinate geometry to six equivalent Tm and three equivalent Ge atoms.
36 MATERIALS SCIENCE↗