Ba2Mg(VS3)2 crystallizes in the hexagonal P-6m2 space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a hexagonal planar geometry to six equivalent S(2) atoms. In the second Ba site, Ba(2) is bonded in a hexagonal planar geometry to six equivalent S(1) atoms. Mg(1) is bonded in a trigonal bipyramidal geometry to two equivalent V(1) and three equivalent S(1) atoms. V(1) is bonded in a 5-coordinate geometry to one Mg(1), one V(1), and three equivalent S(2) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded in a distorted single-bond geometry to two equivalent Ba(2) and one Mg(1) atom. In the second S site, S(2) is bonded in a 4-coordinate geometry to two equivalent Ba(1) and two equivalent V(1) atoms.
Ba2Mg(VS3)2 crystallizes in the hexagonal P-6m2 space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a hexagonal planar geometry to six equivalent S(2) atoms. All Ba(1)-S(2) bond lengths are 3.51 Å. In the second Ba site, Ba(2) is bonded in a hexagonal planar geometry to six equivalent S(1) atoms. All Ba(2)-S(1) bond lengths are 3.52 Å. Mg(1) is bonded in a trigonal bipyramidal geometry to two equivalent V(1) and three equivalent S(1) atoms. Both Mg(1)-V(1) bond lengths are 2.43 Å. All Mg(1)-S(1) bond lengths are 2.23 Å. V(1) is bonded in a 5-coordinate geometry to one Mg(1), one V(1), and three equivalent S(2) atoms. The V(1)-V(1) bond length is 2.13 Å. All V(1)-S(2) bond lengths are 2.29 Å. There are two inequivalent S sites. In the first S site, S(1) is bonded in a distorted single-bond geometry to two equivalent Ba(2) and one Mg(1) atom. In the second S site, S(2) is bonded in a 4-coordinate geometry to two equivalent Ba(1) and two equivalent V(1) atoms.