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DOE OSTI · 1302667

Materials Data on NaAlO2 by Materials Project

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Abstract

NaAlO2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Na1+ is bonded to six equivalent O2- atoms to form distorted NaO6 octahedra that share corners with six equivalent AlO6 octahedra, edges with six equivalent NaO6 octahedra, and edges with six equivalent AlO6 octahedra. The corner-sharing octahedral tilt angles are 14°. All Na–O bond lengths are 2.36 Å. Al3+ is bonded to six equivalent O2- atoms to form AlO6 octahedra that share corners with six equivalent NaO6 octahedra, edges with six equivalent NaO6 octahedra, and edges with six equivalent AlO6 octahedra. The corner-sharing octahedral tilt angles are 14°. All Al–O bond lengths are 1.96 Å. O2- is bonded to three equivalent Na1+ and three equivalent Al3+ atoms to form a mixture of corner and edge-sharing ONa3Al3 octahedra. The corner-sharing octahedral tilt angles are 0°.

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36 MATERIALS SCIENCEAl-Na-Ocrystal structureNaAlO2

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2020-07-14. Materials Data on NaAlO2 by Materials Project. https://doi.org/10.17188/1302667

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