Cs4MgTi2(AgS2)4 crystallizes in the tetragonal P-42m space group. Cs(1) is bonded in a distorted body-centered cubic geometry to four equivalent S(1) and four equivalent S(2) atoms. Mg(1) is bonded to four equivalent S(1) atoms to form distorted MgS4 tetrahedra that share corners with four equivalent Ti(1)S4 tetrahedra and edges with four equivalent Ag(1)S4 tetrahedra. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to four equivalent S(1) atoms to form TiS4 tetrahedra that share corners with four equivalent Mg(1)S4 tetrahedra and edges with four equivalent Ag(1)S4 tetrahedra. In the second Ti site, Ti(2) is bonded in a tetrahedral geometry to four equivalent S(2) atoms. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to four equivalent S(1) atoms to form distorted AgS4 tetrahedra that share corners with four equivalent Ag(1)S4 tetrahedra, edges with two equivalent Mg(1)S4 tetrahedra, and edges with two equivalent Ti(1)S4 tetrahedra. In the second Ag site, Ag(2) is bonded in a 4-coordinate geometry to four equivalent S(2) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 8-coordinate geometry to four equivalent Cs(1), one Mg(1), one Ti(1), and two equivalent Ag(1) atoms. In the second S site, S(2) is bonded in a 7-coordinate geometry to four equivalent Cs(1), one Ti(2), and two equivalent Ag(2) atoms.
Cs4MgTi2(AgS2)4 crystallizes in the tetragonal P-42m space group. Cs(1) is bonded in a distorted body-centered cubic geometry to four equivalent S(1) and four equivalent S(2) atoms. There are two shorter (3.76 Å) and two longer (3.81 Å) Cs(1)-S(1) bond lengths. There are two shorter (3.57 Å) and two longer (3.82 Å) Cs(1)-S(2) bond lengths. Mg(1) is bonded to four equivalent S(1) atoms to form distorted MgS4 tetrahedra that share corners with four equivalent Ti(1)S4 tetrahedra and edges with four equivalent Ag(1)S4 tetrahedra. All Mg(1)-S(1) bond lengths are 2.61 Å. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to four equivalent S(1) atoms to form TiS4 tetrahedra that share corners with four equivalent Mg(1)S4 tetrahedra and edges with four equivalent Ag(1)S4 tetrahedra. All Ti(1)-S(1) bond lengths are 2.54 Å. In the second Ti site, Ti(2) is bonded in a tetrahedral geometry to four equivalent S(2) atoms. All Ti(2)-S(2) bond lengths are 2.31 Å. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to four equivalent S(1) atoms to form distorted AgS4 tetrahedra that share corners with four equivalent Ag(1)S4 tetrahedra, edges with two equivalent Mg(1)S4 tetrahedra, and edges with two equivalent Ti(1)S4 tetrahedra. All Ag(1)-S(1) bond lengths are 2.58 Å. In the second Ag site, Ag(2) is bonded in a 4-coordinate geometry to four equivalent S(2) atoms. All Ag(2)-S(2) bond lengths are 2.58 Å. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 8-coordinate geometry to four equivalent Cs(1), one Mg(1), one Ti(1), and two equivalent Ag(1) atoms. In the second S site, S(2) is bonded in a 7-coordinate geometry to four equivalent Cs(1), one Ti(2), and two equivalent Ag(2) atoms.