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DOE OSTI · 1272588

Materials Data on Na2O by Materials Project

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Abstract

Na2O is Cotunnite-like structured and crystallizes in the monoclinic C2/m space group. The structure is two-dimensional and consists of one Na2O sheet oriented in the (0, 0, 1) direction. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a trigonal non-coplanar geometry to three equivalent O2- atoms. All Na–O bond lengths are 2.37 Å. In the second Na1+ site, Na1+ is bonded to four equivalent O2- atoms to form a mixture of edge and corner-sharing NaO4 tetrahedra. There are three shorter (2.35 Å) and one longer (2.48 Å) Na–O bond lengths. O2- is bonded in a 7-coordinate geometry to seven Na1+ atoms.

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36 MATERIALS SCIENCEcrystal structureNa-ONa2O

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2020-07-23. Materials Data on Na2O by Materials Project. https://doi.org/10.17188/1272588

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