LaZnSn crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 12-coordinate geometry to six equivalent Zn(1) and six equivalent Sn(1) atoms. In the second La site, La(2) is bonded to six equivalent Sn(1) atoms to form distorted edge-sharing LaSn6 octahedra. Zn(1) is bonded in a 6-coordinate geometry to three equivalent La(1) and three equivalent Sn(1) atoms. Sn(1) is bonded in a 9-coordinate geometry to three equivalent La(1), three equivalent La(2), and three equivalent Zn(1) atoms.
LaZnSn crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 12-coordinate geometry to six equivalent Zn(1) and six equivalent Sn(1) atoms. All La(1)-Zn(1) bond lengths are 3.11 Å. All La(1)-Sn(1) bond lengths are 3.51 Å. In the second La site, La(2) is bonded to six equivalent Sn(1) atoms to form distorted edge-sharing LaSn6 octahedra. All La(2)-Sn(1) bond lengths are 3.33 Å. Zn(1) is bonded in a 6-coordinate geometry to three equivalent La(1) and three equivalent Sn(1) atoms. All Zn(1)-Sn(1) bond lengths are 2.73 Å. Sn(1) is bonded in a 9-coordinate geometry to three equivalent La(1), three equivalent La(2), and three equivalent Zn(1) atoms.