CuCr2Se4 is Spinel structured and crystallizes in the cubic Fd-3m space group. Cr(1) is bonded to six equivalent Se(1) atoms to form CrSe6 octahedra that share corners with six equivalent Cu(1)Se4 tetrahedra and edges with six equivalent Cr(1)Se6 octahedra. Cu(1) is bonded to four equivalent Se(1) atoms to form CuSe4 tetrahedra that share corners with twelve equivalent Cr(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 Cr(1) and one Cu(1) atom.
CuCr2Se4 is Spinel structured and crystallizes in the cubic Fd-3m space group. Cr(1) is bonded to six equivalent Se(1) atoms to form CrSe6 octahedra that share corners with six equivalent Cu(1)Se4 tetrahedra and edges with six equivalent Cr(1)Se6 octahedra. All Cr(1)-Se(1) bond lengths are 2.52 Å. Cu(1) is bonded to four equivalent Se(1) atoms to form CuSe4 tetrahedra that share corners with twelve equivalent Cr(1)Se6 octahedra. The corner-sharing octahedral tilt angles are 57°. All Cu(1)-Se(1) bond lengths are 2.37 Å. Se(1) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Cr(1) and one Cu(1) atom.