MgWCoS4 is Hausmannite-derived structured and crystallizes in the monoclinic C2/m space group. Mg(1) is bonded to one S(1), one S(3), and two equivalent S(2) atoms to form MgS4 tetrahedra that share corners with three equivalent Co(1)S6 octahedra, corners with three equivalent Co(2)S6 octahedra, and corners with six equivalent W(1)S6 octahedra. The corner-sharing octahedral tilt angles range from 53-62°. W(1) is bonded to two equivalent S(1), two equivalent S(2), and two equivalent S(3) atoms to form WS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra, edges with two equivalent W(1)S6 octahedra, edges with two equivalent Co(1)S6 octahedra, and edges with two equivalent Co(2)S6 octahedra. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent S(3) and four equivalent S(2) atoms to form CoS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra, edges with two equivalent Co(2)S6 octahedra, and edges with four equivalent W(1)S6 octahedra. In the second Co site, Co(2) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form CoS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra, edges with two equivalent Co(1)S6 octahedra, and edges with four equivalent W(1)S6 octahedra. There are three inequivalent S sites. In the first S site, S(1) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), two equivalent W(1), and one Co(2) atom. In the second S site, S(2) is bonded to one Mg(1), one W(1), one Co(1), and one Co(2) atom to form a mixture of distorted corner and edge-sharing SMgCo2W tetrahedra. In the third S site, S(3) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), two equivalent W(1), and one Co(1) atom.
MgWCoS4 is Hausmannite-derived structured and crystallizes in the monoclinic C2/m space group. Mg(1) is bonded to one S(1), one S(3), and two equivalent S(2) atoms to form MgS4 tetrahedra that share corners with three equivalent Co(1)S6 octahedra, corners with three equivalent Co(2)S6 octahedra, and corners with six equivalent W(1)S6 octahedra. The corner-sharing octahedral tilt angles range from 53-62°. The Mg(1)-S(1) bond length is 2.42 Å. The Mg(1)-S(3) bond length is 2.41 Å. Both Mg(1)-S(2) bond lengths are 2.40 Å. W(1) is bonded to two equivalent S(1), two equivalent S(2), and two equivalent S(3) atoms to form WS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra, edges with two equivalent W(1)S6 octahedra, edges with two equivalent Co(1)S6 octahedra, and edges with two equivalent Co(2)S6 octahedra. Both W(1)-S(1) bond lengths are 2.44 Å. Both W(1)-S(2) bond lengths are 2.45 Å. Both W(1)-S(3) bond lengths are 2.44 Å. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent S(3) and four equivalent S(2) atoms to form CoS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra, edges with two equivalent Co(2)S6 octahedra, and edges with four equivalent W(1)S6 octahedra. Both Co(1)-S(3) bond lengths are 2.34 Å. All Co(1)-S(2) bond lengths are 2.33 Å. In the second Co site, Co(2) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form CoS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra, edges with two equivalent Co(1)S6 octahedra, and edges with four equivalent W(1)S6 octahedra. Both Co(2)-S(1) bond lengths are 2.34 Å. All Co(2)-S(2) bond lengths are 2.33 Å. There are three inequivalent S sites. In the first S site, S(1) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), two equivalent W(1), and one Co(2) atom. In the second S site, S(2) is bonded to one Mg(1), one W(1), one Co(1), and one Co(2) atom to form a mixture of distorted corner and edge-sharing SMgCo2W tetrahedra. In the third S site, S(3) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), two equivalent W(1), and one Co(1) atom.