Materials Data on Y(Fe2Ge)2 by Materials Project
YFe4Ge2 crystallizes in the orthorhombic Pnnm space group. The structure is three-dimensional. Y is bonded in a 6-coordinate geometry to twelve Fe and six equivalent Ge atoms. There are a spread of Y–Fe bond distances ranging from 3.05–3.40 Å. There are two shorter (2.95 Å) and four longer (2.97 Å) Y–Ge bond lengths. There are two inequivalent Fe sites. In the first Fe site, Fe is bonded in a 1-coordinate geometry to three equivalent Y, four Fe, and four equivalent Ge atoms. There are a spread of Fe–Fe bond distances ranging from 2.46–2.64 Å. There are a spread of Fe–Ge bond distances ranging from 2.48–2.68 Å. In the second Fe site, Fe is bonded in a 3-coordinate geometry to three equivalent Y, three equivalent Fe, and three equivalent Ge atoms. There are two shorter (2.41 Å) and one longer (2.42 Å) Fe–Ge bond lengths. Ge is bonded in a 10-coordinate geometry to three equivalent Y and seven Fe atoms.