Ho2CdSe4 is Spinel structured and crystallizes in the cubic Fd-3m space group. Ho(1) is bonded to six equivalent Se(1) atoms to form HoSe6 octahedra that share corners with six equivalent Cd(1)Se4 tetrahedra and edges with six equivalent Ho(1)Se6 octahedra. Cd(1) is bonded to four equivalent Se(1) atoms to form CdSe4 tetrahedra that share corners with twelve equivalent Ho(1)Se6 octahedra. The corner-sharing octahedral tilt angles are 57°. Se(1) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Ho(1) and one Cd(1) atom.
Ho2CdSe4 is Spinel structured and crystallizes in the cubic Fd-3m space group. Ho(1) is bonded to six equivalent Se(1) atoms to form HoSe6 octahedra that share corners with six equivalent Cd(1)Se4 tetrahedra and edges with six equivalent Ho(1)Se6 octahedra. All Ho(1)-Se(1) bond lengths are 2.84 Å. Cd(1) is bonded to four equivalent Se(1) atoms to form CdSe4 tetrahedra that share corners with twelve equivalent Ho(1)Se6 octahedra. The corner-sharing octahedral tilt angles are 57°. All Cd(1)-Se(1) bond lengths are 2.67 Å. Se(1) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Ho(1) and one Cd(1) atom.