Materials Data on FeGe2 by Materials Project

Abstract

FeGe2 crystallizes in the orthorhombic Cmce space group. The structure is three-dimensional. there are two inequivalent Fe sites. In the first Fe site, Fe is bonded in a 8-coordinate geometry to eight Ge atoms. There are a spread of Fe–Ge bond distances ranging from 2.41–2.60 Å. In the second Fe site, Fe is bonded in a 8-coordinate geometry to eight Ge atoms. There are a spread of Fe–Ge bond distances ranging from 2.43–2.53 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 4-coordinate geometry to four Fe and five Ge atoms. There are a spread of Ge–Ge bond distances ranging from 2.64–2.73 Å. In the second Ge site, Ge is bonded in a 4-coordinate geometry to four Fe and five Ge atoms. There are one shorter (2.63 Å) and one longer (2.66 Å) Ge–Ge bond lengths.