KSnS2 is Caswellsilverite-like structured and crystallizes in the trigonal R3m space group. K(1) is bonded in a 6-coordinate geometry to three equivalent S(1) and three equivalent S(2) atoms. Sn(1) is bonded to three equivalent S(1) and three equivalent S(2) atoms to form edge-sharing SnS6 octahedra. There are two inequivalent S sites. In the first S site, S(1) is bonded to three equivalent K(1) and three equivalent Sn(1) atoms to form a mixture of distorted corner, edge, and face-sharing SK3Sn3 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 0-42°. In the second S site, S(2) is bonded to three equivalent K(1) and three equivalent Sn(1) atoms to form a mixture of corner, edge, and face-sharing SK3Sn3 octahedra.
KSnS2 is Caswellsilverite-like structured and crystallizes in the trigonal R3m space group. K(1) is bonded in a 6-coordinate geometry to three equivalent S(1) and three equivalent S(2) atoms. All K(1)-S(1) bond lengths are 3.24 Å. All K(1)-S(2) bond lengths are 3.22 Å. Sn(1) is bonded to three equivalent S(1) and three equivalent S(2) atoms to form edge-sharing SnS6 octahedra. All Sn(1)-S(1) bond lengths are 2.77 Å. All Sn(1)-S(2) bond lengths are 2.76 Å. There are two inequivalent S sites. In the first S site, S(1) is bonded to three equivalent K(1) and three equivalent Sn(1) atoms to form a mixture of distorted corner, edge, and face-sharing SK3Sn3 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 0-42°. In the second S site, S(2) is bonded to three equivalent K(1) and three equivalent Sn(1) atoms to form a mixture of corner, edge, and face-sharing SK3Sn3 octahedra.