TbZnGe crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 12-coordinate geometry to six equivalent Zn(1) and six equivalent Ge(1) atoms. In the second Tb site, Tb(2) is bonded to six equivalent Ge(1) atoms to form distorted edge-sharing TbGe6 octahedra. Zn(1) is bonded in a 6-coordinate geometry to three equivalent Tb(1) and three equivalent Ge(1) atoms. Ge(1) is bonded in a 9-coordinate geometry to three equivalent Tb(1), three equivalent Tb(2), and three equivalent Zn(1) atoms.
TbZnGe crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 12-coordinate geometry to six equivalent Zn(1) and six equivalent Ge(1) atoms. All Tb(1)-Zn(1) bond lengths are 2.93 Å. All Tb(1)-Ge(1) bond lengths are 3.24 Å. In the second Tb site, Tb(2) is bonded to six equivalent Ge(1) atoms to form distorted edge-sharing TbGe6 octahedra. All Tb(2)-Ge(1) bond lengths are 3.03 Å. Zn(1) is bonded in a 6-coordinate geometry to three equivalent Tb(1) and three equivalent Ge(1) atoms. All Zn(1)-Ge(1) bond lengths are 2.47 Å. Ge(1) is bonded in a 9-coordinate geometry to three equivalent Tb(1), three equivalent Tb(2), and three equivalent Zn(1) atoms.