Materials Data on Sm3(Ge2Ru)2 by Materials Project

Abstract

Sm3Ru2Ge4 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Sm sites. In the first Sm site, Sm is bonded in a 6-coordinate geometry to eight Ge atoms. There are a spread of Sm–Ge bond distances ranging from 3.12–3.42 Å. In the second Sm site, Sm is bonded in a 11-coordinate geometry to four equivalent Ru and seven Ge atoms. There are a spread of Sm–Ru bond distances ranging from 3.10–3.22 Å. There are a spread of Sm–Ge bond distances ranging from 3.01–3.23 Å. Ru is bonded in a 4-coordinate geometry to four equivalent Sm and four Ge atoms. There are three shorter (2.45 Å) and one longer (2.53 Å) Ru–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 6-coordinate geometry to six Sm, one Ru, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.81 Å. In the second Ge site, Ge is bonded in a 10-coordinate geometry to five Sm and three equivalent Ru atoms.