Materials Data on K2Se by Materials Project
K2Se is Fluorite structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. K1+ is bonded to four equivalent Se2- atoms to form a mixture of edge and corner-sharing KSe4 tetrahedra. All K–Se bond lengths are 3.36 Å. Se2- is bonded in a body-centered cubic geometry to eight equivalent K1+ atoms.
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