Materials Data on Sm3Ge5 by Materials Project

Abstract

Sm3Ge5 crystallizes in the orthorhombic Fdd2 space group. The structure is three-dimensional. there are two inequivalent Sm sites. In the first Sm site, Sm is bonded in a 10-coordinate geometry to ten Ge atoms. There are a spread of Sm–Ge bond distances ranging from 3.04–3.46 Å. In the second Sm site, Sm is bonded in a 10-coordinate geometry to ten Ge atoms. There are a spread of Sm–Ge bond distances ranging from 3.02–3.48 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 8-coordinate geometry to six Sm and two equivalent Ge atoms. There are one shorter (2.57 Å) and one longer (2.64 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded in a 9-coordinate geometry to six Sm and three Ge atoms. The Ge–Ge bond length is 2.61 Å. In the third Ge site, Ge is bonded in a 8-coordinate geometry to six Sm and two equivalent Ge atoms.