MgTm2S4 is Spinel structured and crystallizes in the cubic Fd-3m space group. Mg(1) is bonded to four equivalent S(1) atoms to form MgS4 tetrahedra that share corners with twelve equivalent Tm(1)S6 octahedra. The corner-sharing octahedral tilt angles are 57°. Tm(1) is bonded to six equivalent S(1) atoms to form TmS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra and edges with six equivalent Tm(1)S6 octahedra. S(1) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1) and three equivalent Tm(1) atoms.
MgTm2S4 is Spinel structured and crystallizes in the cubic Fd-3m space group. Mg(1) is bonded to four equivalent S(1) atoms to form MgS4 tetrahedra that share corners with twelve equivalent Tm(1)S6 octahedra. The corner-sharing octahedral tilt angles are 57°. All Mg(1)-S(1) bond lengths are 2.49 Å. Tm(1) is bonded to six equivalent S(1) atoms to form TmS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra and edges with six equivalent Tm(1)S6 octahedra. All Tm(1)-S(1) bond lengths are 2.69 Å. S(1) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1) and three equivalent Tm(1) atoms.