Materials Data on Na4XeO12 by Materials Project

Abstract

XeNa4O12 crystallizes in the orthorhombic Pbca space group. The structure is three-dimensional. Xe is bonded in a linear geometry to two equivalent Na atoms. Both Xe–Na bond lengths are 3.30 Å. There are two inequivalent Na sites. In the first Na site, Na is bonded in a 6-coordinate geometry to one Xe and six O atoms. There are a spread of Na–O bond distances ranging from 2.32–2.83 Å. In the second Na site, Na is bonded to seven O atoms to form a mixture of distorted corner and edge-sharing NaO7 hexagonal pyramids. There are a spread of Na–O bond distances ranging from 2.41–2.79 Å. There are six inequivalent O sites. In the first O site, O is bonded in a bent 150 degrees geometry to one Na and one O atom. The O–O bond length is 1.27 Å. In the second O site, O is bonded in a distorted rectangular see-saw-like geometry to three Na and one O atom. The O–O bond length is 1.35 Å. In the third O site, O is bonded in a distorted trigonal non-coplanar geometry to two equivalent Na and one O atom. In the fourth O site, O is bonded in a distorted T-shaped geometry to two equivalent Na and one O atom. The O–O bond length is 1.30 Å. In the fifth O site, O is bonded in a trigonal planar geometry to two equivalent Na and one O atom. In the sixth O site, O is bonded in a 4-coordinate geometry to three Na and one O atom.