La5Sb3Br crystallizes in the hexagonal P6_3/mcm space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 7-coordinate geometry to five equivalent Sb(1) and two equivalent Br(1) atoms. In the second La site, La(2) is bonded in a 6-coordinate geometry to six equivalent Sb(1) atoms. Sb(1) is bonded in a 9-coordinate geometry to four equivalent La(2) and five equivalent La(1) atoms. Br(1) is bonded to six equivalent La(1) atoms to form face-sharing BrLa6 octahedra.
La5Sb3Br crystallizes in the hexagonal P6_3/mcm space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 7-coordinate geometry to five equivalent Sb(1) and two equivalent Br(1) atoms. There are three shorter (3.31 Å) and two longer (3.56 Å) La(1)-Sb(1) bond lengths. Both La(1)-Br(1) bond lengths are 3.16 Å. In the second La site, La(2) is bonded in a 6-coordinate geometry to six equivalent Sb(1) atoms. All La(2)-Sb(1) bond lengths are 3.46 Å. Sb(1) is bonded in a 9-coordinate geometry to four equivalent La(2) and five equivalent La(1) atoms. Br(1) is bonded to six equivalent La(1) atoms to form face-sharing BrLa6 octahedra.