AgAl5S8 is Spinel-like structured and crystallizes in the cubic F-43m space group. Ag(1) is bonded to four equivalent S(1) atoms to form AgS4 tetrahedra that share corners with twelve equivalent Al(1)S6 octahedra. The corner-sharing octahedral tilt angles are 57°. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to three equivalent S(1) and three equivalent S(2) atoms to form AlS6 octahedra that share corners with three equivalent Ag(1)S4 tetrahedra, corners with three equivalent Al(2)S4 tetrahedra, and edges with six equivalent Al(1)S6 octahedra. In the second Al site, Al(2) is bonded to four equivalent S(2) atoms to form corner-sharing AlS4 tetrahedra. The corner-sharing octahedral tilt angles are 60°. There are two inequivalent S sites. In the first S site, S(1) is bonded in a distorted rectangular see-saw-like geometry to one Ag(1) and three equivalent Al(1) atoms. In the second S site, S(2) is bonded to one Al(2) and three equivalent Al(1) atoms to form a mixture of distorted corner and edge-sharing SAl4 tetrahedra.
AgAl5S8 is Spinel-like structured and crystallizes in the cubic F-43m space group. Ag(1) is bonded to four equivalent S(1) atoms to form AgS4 tetrahedra that share corners with twelve equivalent Al(1)S6 octahedra. The corner-sharing octahedral tilt angles are 57°. All Ag(1)-S(1) bond lengths are 2.42 Å. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to three equivalent S(1) and three equivalent S(2) atoms to form AlS6 octahedra that share corners with three equivalent Ag(1)S4 tetrahedra, corners with three equivalent Al(2)S4 tetrahedra, and edges with six equivalent Al(1)S6 octahedra. All Al(1)-S(1) bond lengths are 2.36 Å. All Al(1)-S(2) bond lengths are 2.54 Å. In the second Al site, Al(2) is bonded to four equivalent S(2) atoms to form corner-sharing AlS4 tetrahedra. The corner-sharing octahedral tilt angles are 60°. All Al(2)-S(2) bond lengths are 2.35 Å. There are two inequivalent S sites. In the first S site, S(1) is bonded in a distorted rectangular see-saw-like geometry to one Ag(1) and three equivalent Al(1) atoms. In the second S site, S(2) is bonded to one Al(2) and three equivalent Al(1) atoms to form a mixture of distorted corner and edge-sharing SAl4 tetrahedra.