CsSmS2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. Cs(1) is bonded in a 6-coordinate geometry to six equivalent S(1) atoms. Sm(1) is bonded to six equivalent S(1) atoms to form edge-sharing SmS6 octahedra. S(1) is bonded to three equivalent Cs(1) and three equivalent Sm(1) atoms to form a mixture of distorted corner and edge-sharing SCs3Sm3 octahedra. The corner-sharing octahedra are not tilted.
CsSmS2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. Cs(1) is bonded in a 6-coordinate geometry to six equivalent S(1) atoms. All Cs(1)-S(1) bond lengths are 3.51 Å. Sm(1) is bonded to six equivalent S(1) atoms to form edge-sharing SmS6 octahedra. All Sm(1)-S(1) bond lengths are 2.84 Å. S(1) is bonded to three equivalent Cs(1) and three equivalent Sm(1) atoms to form a mixture of distorted corner and edge-sharing SCs3Sm3 octahedra. The corner-sharing octahedra are not tilted.