Ag3SbTe4 is Caswellsilverite-like structured and crystallizes in the cubic Pm-3m space group. Ag(1) is bonded to two equivalent Sb(1) and four equivalent Te(1) atoms to form AgSb2Te4 octahedra that share corners with six equivalent Ag(1)Sb2Te4 octahedra, edges with four equivalent Te(2)Te6 octahedra, and edges with eight equivalent Ag(1)Sb2Te4 octahedra. The corner-sharing octahedra are not tilted. Sb(1) is bonded to six equivalent Ag(1) atoms to form SbAg6 octahedra that share corners with six equivalent Sb(1)Ag6 octahedra and edges with twelve equivalent Te(1)Ag4Te2 octahedra. The corner-sharing octahedra are not tilted. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to four equivalent Ag(1) and two equivalent Te(2) atoms to form TeAg4Te2 octahedra that share corners with six equivalent Te(1)Ag4Te2 octahedra, edges with four equivalent Sb(1)Ag6 octahedra, and edges with eight equivalent Te(1)Ag4Te2 octahedra. The corner-sharing octahedra are not tilted. In the second Te site, Te(2) is bonded to six equivalent Te(1) atoms to form TeTe6 octahedra that share corners with six equivalent Te(2)Te6 octahedra and edges with twelve equivalent Ag(1)Sb2Te4 octahedra. The corner-sharing octahedra are not tilted.
Ag3SbTe4 is Caswellsilverite-like structured and crystallizes in the cubic Pm-3m space group. Ag(1) is bonded to two equivalent Sb(1) and four equivalent Te(1) atoms to form AgSb2Te4 octahedra that share corners with six equivalent Ag(1)Sb2Te4 octahedra, edges with four equivalent Te(2)Te6 octahedra, and edges with eight equivalent Ag(1)Sb2Te4 octahedra. The corner-sharing octahedra are not tilted. Both Ag(1)-Sb(1) bond lengths are 2.99 Å. All Ag(1)-Te(1) bond lengths are 2.99 Å. Sb(1) is bonded to six equivalent Ag(1) atoms to form SbAg6 octahedra that share corners with six equivalent Sb(1)Ag6 octahedra and edges with twelve equivalent Te(1)Ag4Te2 octahedra. The corner-sharing octahedra are not tilted. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to four equivalent Ag(1) and two equivalent Te(2) atoms to form TeAg4Te2 octahedra that share corners with six equivalent Te(1)Ag4Te2 octahedra, edges with four equivalent Sb(1)Ag6 octahedra, and edges with eight equivalent Te(1)Ag4Te2 octahedra. The corner-sharing octahedra are not tilted. Both Te(1)-Te(2) bond lengths are 2.99 Å. In the second Te site, Te(2) is bonded to six equivalent Te(1) atoms to form TeTe6 octahedra that share corners with six equivalent Te(2)Te6 octahedra and edges with twelve equivalent Ag(1)Sb2Te4 octahedra. The corner-sharing octahedra are not tilted.