MgLa2Se4 is Spinel structured and crystallizes in the cubic Fd-3m space group. Mg(1) is bonded to four equivalent Se(1) atoms to form MgSe4 tetrahedra that share corners with twelve equivalent La(1)Se6 octahedra. The corner-sharing octahedral tilt angles are 55°. La(1) is bonded to six equivalent Se(1) atoms to form LaSe6 octahedra that share corners with six equivalent Mg(1)Se4 tetrahedra and edges with six equivalent La(1)Se6 octahedra. Se(1) is bonded in a rectangular see-saw-like geometry to one Mg(1) and three equivalent La(1) atoms.
MgLa2Se4 is Spinel structured and crystallizes in the cubic Fd-3m space group. Mg(1) is bonded to four equivalent Se(1) atoms to form MgSe4 tetrahedra that share corners with twelve equivalent La(1)Se6 octahedra. The corner-sharing octahedral tilt angles are 55°. All Mg(1)-Se(1) bond lengths are 2.67 Å. La(1) is bonded to six equivalent Se(1) atoms to form LaSe6 octahedra that share corners with six equivalent Mg(1)Se4 tetrahedra and edges with six equivalent La(1)Se6 octahedra. All La(1)-Se(1) bond lengths are 3.02 Å. Se(1) is bonded in a rectangular see-saw-like geometry to one Mg(1) and three equivalent La(1) atoms.