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DOE OSTI · 1288518

Materials Data on K2Sn2O3 by Materials Project

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Abstract

K2Sn2O3 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a hexagonal planar geometry to six equivalent O2- atoms. All K–O bond lengths are 3.07 Å. In the second K1+ site, K1+ is bonded in a hexagonal planar geometry to six equivalent O2- atoms. All K–O bond lengths are 2.99 Å. Sn2+ is bonded in a distorted T-shaped geometry to three equivalent O2- atoms. All Sn–O bond lengths are 2.07 Å. O2- is bonded to four K1+ and two equivalent Sn2+ atoms to form a mixture of distorted corner and face-sharing OK4Sn2 octahedra. The corner-sharing octahedra tilt angles range from 0–62°.

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36 MATERIALS SCIENCEcrystal structureK-O-SnK2Sn2O3

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2020-05-04. Materials Data on K2Sn2O3 by Materials Project. https://doi.org/10.17188/1288518

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