TbZnSn 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 Sn(1) atoms. In the second Tb site, Tb(2) is bonded to six equivalent Sn(1) atoms to form edge-sharing TbSn6 octahedra. Zn(1) is bonded in a 6-coordinate geometry to three equivalent Tb(1) and three equivalent Sn(1) atoms. Sn(1) is bonded in a 9-coordinate geometry to three equivalent Tb(1), three equivalent Tb(2), and three equivalent Zn(1) atoms.
TbZnSn 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 Sn(1) atoms. All Tb(1)-Zn(1) bond lengths are 2.95 Å. All Tb(1)-Sn(1) bond lengths are 3.38 Å. In the second Tb site, Tb(2) is bonded to six equivalent Sn(1) atoms to form edge-sharing TbSn6 octahedra. All Tb(2)-Sn(1) bond lengths are 3.17 Å. Zn(1) is bonded in a 6-coordinate geometry to three equivalent Tb(1) and three equivalent Sn(1) atoms. All Zn(1)-Sn(1) bond lengths are 2.68 Å. Sn(1) is bonded in a 9-coordinate geometry to three equivalent Tb(1), three equivalent Tb(2), and three equivalent Zn(1) atoms.