Y2ZnSe4 is Spinel structured and crystallizes in the cubic Fd-3m space group. Y(1) is bonded to six equivalent Se(1) atoms to form YSe6 octahedra that share corners with six equivalent Zn(1)Se4 tetrahedra and edges with six equivalent Y(1)Se6 octahedra. Zn(1) is bonded to four equivalent Se(1) atoms to form ZnSe4 tetrahedra that share corners with twelve equivalent Y(1)Se6 octahedra. The corner-sharing octahedral tilt angles are 55°. Se(1) is bonded in a rectangular see-saw-like geometry to three equivalent Y(1) and one Zn(1) atom.
Y2ZnSe4 is Spinel structured and crystallizes in the cubic Fd-3m space group. Y(1) is bonded to six equivalent Se(1) atoms to form YSe6 octahedra that share corners with six equivalent Zn(1)Se4 tetrahedra and edges with six equivalent Y(1)Se6 octahedra. All Y(1)-Se(1) bond lengths are 2.87 Å. Zn(1) is bonded to four equivalent Se(1) atoms to form ZnSe4 tetrahedra that share corners with twelve equivalent Y(1)Se6 octahedra. The corner-sharing octahedral tilt angles are 55°. All Zn(1)-Se(1) bond lengths are 2.54 Å. Se(1) is bonded in a rectangular see-saw-like geometry to three equivalent Y(1) and one Zn(1) atom.