YFe4Ge2 crystallizes in the orthorhombic Pnnm space group. Y(1) is bonded in a 18-coordinate geometry to six equivalent Fe(1), six equivalent Fe(2), and six equivalent Ge(1) atoms. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 11-coordinate geometry to three equivalent Y(1), one Fe(1), three equivalent Fe(2), and four equivalent Ge(1) atoms. In the second Fe site, Fe(2) is bonded in a 3-coordinate geometry to three equivalent Y(1), three equivalent Fe(1), and three equivalent Ge(1) atoms. Ge(1) is bonded in a 10-coordinate geometry to three equivalent Y(1), three equivalent Fe(2), and four equivalent Fe(1) atoms.
YFe4Ge2 crystallizes in the orthorhombic Pnnm space group. Y(1) is bonded in a 18-coordinate geometry to six equivalent Fe(1), six equivalent Fe(2), and six equivalent Ge(1) atoms. There are two shorter (3.05 Å) and four longer (3.28 Å) Y(1)-Fe(1) bond lengths. There are two shorter (3.11 Å) and four longer (3.40 Å) Y(1)-Fe(2) bond lengths. There are two shorter (2.95 Å) and four longer (2.97 Å) Y(1)-Ge(1) bond lengths. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 11-coordinate geometry to three equivalent Y(1), one Fe(1), three equivalent Fe(2), and four equivalent Ge(1) atoms. The Fe(1)-Fe(1) bond length is 2.63 Å. There are two shorter (2.46 Å) and one longer (2.64 Å) Fe(1)-Fe(2) bond length. There are a spread of Fe(1)-Ge(1) bond distances ranging from 2.48-2.68 Å. In the second Fe site, Fe(2) is bonded in a 3-coordinate geometry to three equivalent Y(1), three equivalent Fe(1), and three equivalent Ge(1) atoms. There are two shorter (2.41 Å) and one longer (2.42 Å) Fe(2)-Ge(1) bond length. Ge(1) is bonded in a 10-coordinate geometry to three equivalent Y(1), three equivalent Fe(2), and four equivalent Fe(1) atoms.