Lu2MnSe4 is Spinel structured and crystallizes in the cubic Fd-3m space group. Lu(1) is bonded to six equivalent Se(1) atoms to form LuSe6 octahedra that share corners with six equivalent Mn(1)Se4 tetrahedra and edges with six equivalent Lu(1)Se6 octahedra. Mn(1) is bonded to four equivalent Se(1) atoms to form MnSe4 tetrahedra that share corners with twelve equivalent Lu(1)Se6 octahedra. The corner-sharing octahedral tilt angles are 56°. Se(1) is bonded in a rectangular see-saw-like geometry to three equivalent Lu(1) and one Mn(1) atom.
Lu2MnSe4 is Spinel structured and crystallizes in the cubic Fd-3m space group. Lu(1) is bonded to six equivalent Se(1) atoms to form LuSe6 octahedra that share corners with six equivalent Mn(1)Se4 tetrahedra and edges with six equivalent Lu(1)Se6 octahedra. All Lu(1)-Se(1) bond lengths are 2.79 Å. Mn(1) is bonded to four equivalent Se(1) atoms to form MnSe4 tetrahedra that share corners with twelve equivalent Lu(1)Se6 octahedra. The corner-sharing octahedral tilt angles are 56°. All Mn(1)-Se(1) bond lengths are 2.56 Å. Se(1) is bonded in a rectangular see-saw-like geometry to three equivalent Lu(1) and one Mn(1) atom.