MgWCu2S4 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a distorted rectangular see-saw-like geometry to one W(1), one S(1), one S(2), one S(3), and one S(4) atom. W(1) is bonded in a 9-coordinate geometry to one Mg(1), two equivalent Cu(1), two equivalent Cu(2), one S(1), one S(2), one S(3), and one S(4) atom. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to two equivalent W(1), one S(1), one S(2), one S(3), and one S(4) atom to form a mixture of distorted corner and edge-sharing CuW2S4 tetrahedra. In the second Cu site, Cu(2) is bonded to two equivalent W(1), one S(1), one S(2), one S(3), and one S(4) atom to form a mixture of distorted corner and edge-sharing CuW2S4 tetrahedra. There are four inequivalent S sites. In the first S site, S(1) is bonded in a 4-coordinate geometry to one Mg(1), one W(1), one Cu(1), and one Cu(2) atom. In the second S site, S(2) is bonded in a 4-coordinate geometry to one Mg(1), one W(1), one Cu(1), and one Cu(2) atom. In the third S site, S(3) is bonded in a 4-coordinate geometry to one Mg(1), one W(1), one Cu(1), and one Cu(2) atom. In the fourth S site, S(4) is bonded in a 4-coordinate geometry to one Mg(1), one W(1), one Cu(1), and one Cu(2) atom.
MgWCu2S4 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a distorted rectangular see-saw-like geometry to one W(1), one S(1), one S(2), one S(3), and one S(4) atom. The Mg(1)-W(1) bond length is 3.23 Å. The Mg(1)-S(1) bond length is 2.69 Å. The Mg(1)-S(2) bond length is 2.68 Å. The Mg(1)-S(3) bond length is 2.56 Å. The Mg(1)-S(4) bond length is 2.57 Å. W(1) is bonded in a 9-coordinate geometry to one Mg(1), two equivalent Cu(1), two equivalent Cu(2), one S(1), one S(2), one S(3), and one S(4) atom. There is one shorter (2.71 Å) and one longer (2.72 Å) W(1)-Cu(1) bond length. There is one shorter (2.71 Å) and one longer (2.72 Å) W(1)-Cu(2) bond length. The W(1)-S(1) bond length is 2.26 Å. The W(1)-S(2) bond length is 2.26 Å. The W(1)-S(3) bond length is 2.33 Å. The W(1)-S(4) bond length is 2.35 Å. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to two equivalent W(1), one S(1), one S(2), one S(3), and one S(4) atom to form a mixture of distorted corner and edge-sharing CuW2S4 tetrahedra. The Cu(1)-S(1) bond length is 2.43 Å. The Cu(1)-S(2) bond length is 2.39 Å. The Cu(1)-S(3) bond length is 2.36 Å. The Cu(1)-S(4) bond length is 2.36 Å. In the second Cu site, Cu(2) is bonded to two equivalent W(1), one S(1), one S(2), one S(3), and one S(4) atom to form a mixture of distorted corner and edge-sharing CuW2S4 tetrahedra. The Cu(2)-S(1) bond length is 2.38 Å. The Cu(2)-S(2) bond length is 2.43 Å. The Cu(2)-S(3) bond length is 2.36 Å. The Cu(2)-S(4) bond length is 2.37 Å. There are four inequivalent S sites. In the first S site, S(1) is bonded in a 4-coordinate geometry to one Mg(1), one W(1), one Cu(1), and one Cu(2) atom. In the second S site, S(2) is bonded in a 4-coordinate geometry to one Mg(1), one W(1), one Cu(1), and one Cu(2) atom. In the third S site, S(3) is bonded in a 4-coordinate geometry to one Mg(1), one W(1), one Cu(1), and one Cu(2) atom. In the fourth S site, S(4) is bonded in a 4-coordinate geometry to one Mg(1), one W(1), one Cu(1), and one Cu(2) atom.