YZnGe crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 12-coordinate geometry to six equivalent Zn(1) and six equivalent Ge(1) atoms. In the second Y site, Y(2) is bonded to six equivalent Ge(1) atoms to form distorted edge-sharing YGe6 octahedra. Zn(1) is bonded in a 6-coordinate geometry to three equivalent Y(1) and three equivalent Ge(1) atoms. Ge(1) is bonded in a 9-coordinate geometry to three equivalent Y(1), three equivalent Y(2), and three equivalent Zn(1) atoms.
YZnGe crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 12-coordinate geometry to six equivalent Zn(1) and six equivalent Ge(1) atoms. All Y(1)-Zn(1) bond lengths are 2.93 Å. All Y(1)-Ge(1) bond lengths are 3.23 Å. In the second Y site, Y(2) is bonded to six equivalent Ge(1) atoms to form distorted edge-sharing YGe6 octahedra. All Y(2)-Ge(1) bond lengths are 3.03 Å. Zn(1) is bonded in a 6-coordinate geometry to three equivalent Y(1) and three equivalent Ge(1) atoms. All Zn(1)-Ge(1) bond lengths are 2.46 Å. Ge(1) is bonded in a 9-coordinate geometry to three equivalent Y(1), three equivalent Y(2), and three equivalent Zn(1) atoms.