Materials Data on Na2ZnSe2 by Materials Project
Na2ZnSe2 crystallizes in the orthorhombic Ibam space group. The structure is three-dimensional. Na1+ is bonded in a 5-coordinate geometry to five equivalent Se2- atoms. There are a spread of Na–Se bond distances ranging from 2.93–3.25 Å. Zn2+ is bonded to four equivalent Se2- atoms to form edge-sharing ZnSe4 tetrahedra. All Zn–Se bond lengths are 2.51 Å. Se2- is bonded to five equivalent Na1+ and two equivalent Zn2+ atoms to form a mixture of distorted face, edge, and corner-sharing SeNa5Zn2 pentagonal bipyramids.
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