Materials Data on ZnSe2 by Materials Project
ZnSe2 is Pyrite structured and crystallizes in the cubic Pa-3 space group. The structure is three-dimensional. Zn2+ is bonded to six equivalent Se1- atoms to form ZnSe6 octahedra that share corners with twelve equivalent ZnSe6 octahedra and corners with six equivalent SeZn3Se tetrahedra. The corner-sharing octahedral tilt angles are 66°. All Zn–Se bond lengths are 2.68 Å. Se1- is bonded to three equivalent Zn2+ and one Se1- atom to form distorted SeZn3Se tetrahedra that share corners with three equivalent ZnSe6 octahedra and corners with fifteen equivalent SeZn3Se tetrahedra. The corner-sharing octahedral tilt angles are 76°. The Se–Se bond length is 2.40 Å.
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