Cr4CuZnSe8 is Spinel-derived structured and crystallizes in the cubic F-43m space group. Cr(1) is bonded to three equivalent Se(1) and three equivalent Se(2) atoms to form CrSe6 octahedra that share corners with three equivalent Cu(1)Se4 tetrahedra, corners with three equivalent Zn(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°. Zn(1) is bonded to four equivalent Se(2) atoms to form ZnSe4 tetrahedra that share corners with twelve equivalent Cr(1)Se6 octahedra. The corner-sharing octahedral tilt angles are 59°. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Cr(1) and one Cu(1) atom. In the second Se site, Se(2) is bonded to three equivalent Cr(1) and one Zn(1) atom to form a mixture of distorted corner and edge-sharing SeZnCr3 trigonal pyramids.
Cr4CuZnSe8 is Spinel-derived structured and crystallizes in the cubic F-43m space group. Cr(1) is bonded to three equivalent Se(1) and three equivalent Se(2) atoms to form CrSe6 octahedra that share corners with three equivalent Cu(1)Se4 tetrahedra, corners with three equivalent Zn(1)Se4 tetrahedra, and edges with six equivalent Cr(1)Se6 octahedra. All Cr(1)-Se(1) bond lengths are 2.52 Å. All Cr(1)-Se(2) bond lengths are 2.55 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 2.42 Å. Zn(1) is bonded to four equivalent Se(2) atoms to form ZnSe4 tetrahedra that share corners with twelve equivalent Cr(1)Se6 octahedra. The corner-sharing octahedral tilt angles are 59°. All Zn(1)-Se(2) bond lengths are 2.46 Å. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Cr(1) and one Cu(1) atom. In the second Se site, Se(2) is bonded to three equivalent Cr(1) and one Zn(1) atom to form a mixture of distorted corner and edge-sharing SeZnCr3 trigonal pyramids.