Mg(FeS2)2 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 Fe(1)S6 octahedra. The corner-sharing octahedral tilt angles are 61°. Fe(1) is bonded to six equivalent S(1) atoms to form FeS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra and edges with six equivalent Fe(1)S6 octahedra. S(1) is bonded to one Mg(1) and three equivalent Fe(1) atoms to form a mixture of distorted corner and edge-sharing SMgFe3 tetrahedra.
Mg(FeS2)2 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 Fe(1)S6 octahedra. The corner-sharing octahedral tilt angles are 61°. All Mg(1)-S(1) bond lengths are 2.43 Å. Fe(1) is bonded to six equivalent S(1) atoms to form FeS6 octahedra that share corners with six equivalent Mg(1)S4 tetrahedra and edges with six equivalent Fe(1)S6 octahedra. All Fe(1)-S(1) bond lengths are 2.31 Å. S(1) is bonded to one Mg(1) and three equivalent Fe(1) atoms to form a mixture of distorted corner and edge-sharing SMgFe3 tetrahedra.