Materials Data on Na2Se by Materials Project
Na2Se is Fluorite structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Na1+ is bonded to four equivalent Se2- atoms to form a mixture of edge and corner-sharing NaSe4 tetrahedra. All Na–Se bond lengths are 2.97 Å. Se2- is bonded in a body-centered cubic geometry to eight equivalent Na1+ atoms.
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