Materials Data on SmFeGe2 by Materials Project

Abstract

SmFeGe2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Sm is bonded in a 10-coordinate geometry to four equivalent Fe and ten Ge atoms. All Sm–Fe bond lengths are 3.29 Å. There are a spread of Sm–Ge bond distances ranging from 3.16–3.28 Å. Fe is bonded in a 5-coordinate geometry to four equivalent Sm and five Ge atoms. There are a spread of Fe–Ge bond distances ranging from 2.30–2.40 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 1-coordinate geometry to six equivalent Sm, one Fe, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.61 Å. In the second Ge site, Ge is bonded in a 4-coordinate geometry to four equivalent Sm and four equivalent Fe atoms.