Mn2SeS is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. Mn(1) is bonded in a 6-coordinate geometry to three equivalent Se(1) and three equivalent S(1) atoms. Se(1) is bonded to six equivalent Mn(1) atoms to form SeMn6 octahedra that share corners with six equivalent S(1)Mn6 octahedra, edges with six equivalent Se(1)Mn6 octahedra, and edges with six equivalent S(1)Mn6 octahedra. The corner-sharing octahedral tilt angles are 18°. S(1) is bonded to six equivalent Mn(1) atoms to form distorted SMn6 octahedra that share corners with six equivalent Se(1)Mn6 octahedra, edges with six equivalent Se(1)Mn6 octahedra, and edges with six equivalent S(1)Mn6 octahedra. The corner-sharing octahedral tilt angles are 18°.
Mn2SeS is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. Mn(1) is bonded in a 6-coordinate geometry to three equivalent Se(1) and three equivalent S(1) atoms. All Mn(1)-Se(1) bond lengths are 2.71 Å. All Mn(1)-S(1) bond lengths are 2.19 Å. Se(1) is bonded to six equivalent Mn(1) atoms to form SeMn6 octahedra that share corners with six equivalent S(1)Mn6 octahedra, edges with six equivalent Se(1)Mn6 octahedra, and edges with six equivalent S(1)Mn6 octahedra. The corner-sharing octahedral tilt angles are 18°. S(1) is bonded to six equivalent Mn(1) atoms to form distorted SMn6 octahedra that share corners with six equivalent Se(1)Mn6 octahedra, edges with six equivalent Se(1)Mn6 octahedra, and edges with six equivalent S(1)Mn6 octahedra. The corner-sharing octahedral tilt angles are 18°.