La5S8 is beta indium sulfide-like structured and crystallizes in the cubic F-43m space group. There are two inequivalent La sites. In the first La site, La(1) is bonded to three equivalent S(1) and three equivalent S(2) atoms to form LaS6 octahedra that share corners with three equivalent La(2)S4 tetrahedra and edges with six equivalent La(1)S6 octahedra. In the second La site, La(2) is bonded to four equivalent S(1) atoms to form corner-sharing LaS4 tetrahedra. The corner-sharing octahedral tilt angles are 58°. There are two inequivalent S sites. In the first S site, S(2) is bonded in a distorted T-shaped geometry to three equivalent La(1) atoms. In the second S site, S(1) is bonded to one La(2) and three equivalent La(1) atoms to form a mixture of distorted edge and corner-sharing SLa4 trigonal pyramids.
La5S8 is beta indium sulfide-like structured and crystallizes in the cubic F-43m space group. There are two inequivalent La sites. In the first La site, La(1) is bonded to three equivalent S(1) and three equivalent S(2) atoms to form LaS6 octahedra that share corners with three equivalent La(2)S4 tetrahedra and edges with six equivalent La(1)S6 octahedra. All La(1)-S(1) bond lengths are 2.97 Å. All La(1)-S(2) bond lengths are 2.83 Å. In the second La site, La(2) is bonded to four equivalent S(1) atoms to form corner-sharing LaS4 tetrahedra. The corner-sharing octahedral tilt angles are 58°. All La(2)-S(1) bond lengths are 2.80 Å. There are two inequivalent S sites. In the first S site, S(2) is bonded in a distorted T-shaped geometry to three equivalent La(1) atoms. In the second S site, S(1) is bonded to one La(2) and three equivalent La(1) atoms to form a mixture of distorted edge and corner-sharing SLa4 trigonal pyramids.