Sr2Mg(TiS3)2 crystallizes in the monoclinic C2/m space group. Sr(1) is bonded in a 5-coordinate geometry to one S(1) and four equivalent S(2) atoms. Mg(1) is bonded in a square co-planar geometry to four equivalent S(2) atoms. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form face-sharing TiS6 octahedra. In the second Ti site, Ti(2) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form face-sharing TiS6 octahedra. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 3-coordinate geometry to one Sr(1), one Ti(1), and one Ti(2) atom. In the second S site, S(2) is bonded to two equivalent Sr(1), one Mg(1), one Ti(1), and one Ti(2) atom to form a mixture of distorted edge, face, and corner-sharing SSr2MgTi2 trigonal bipyramids.
Sr2Mg(TiS3)2 crystallizes in the monoclinic C2/m space group. Sr(1) is bonded in a 5-coordinate geometry to one S(1) and four equivalent S(2) atoms. The Sr(1)-S(1) bond length is 2.91 Å. There are two shorter (2.97 Å) and two longer (2.99 Å) Sr(1)-S(2) bond lengths. Mg(1) is bonded in a square co-planar geometry to four equivalent S(2) atoms. All Mg(1)-S(2) bond lengths are 2.48 Å. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form face-sharing TiS6 octahedra. Both Ti(1)-S(1) bond lengths are 2.42 Å. All Ti(1)-S(2) bond lengths are 2.51 Å. In the second Ti site, Ti(2) is bonded to two equivalent S(1) and four equivalent S(2) atoms to form face-sharing TiS6 octahedra. Both Ti(2)-S(1) bond lengths are 2.55 Å. All Ti(2)-S(2) bond lengths are 2.48 Å. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 3-coordinate geometry to one Sr(1), one Ti(1), and one Ti(2) atom. In the second S site, S(2) is bonded to two equivalent Sr(1), one Mg(1), one Ti(1), and one Ti(2) atom to form a mixture of distorted edge, face, and corner-sharing SSr2MgTi2 trigonal bipyramids.