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DOE OSTI · 1748011

Materials Data on BaSr2I6 by Materials Project

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Abstract

BaSr2I6 is alpha bismuth trifluoride-derived structured and crystallizes in the orthorhombic Cmce space group. The structure is three-dimensional. Ba2+ is bonded in a body-centered cubic geometry to eight equivalent I1- atoms. There are four shorter (3.58 Å) and four longer (3.61 Å) Ba–I bond lengths. Sr2+ is bonded in a body-centered cubic geometry to eight I1- atoms. There are a spread of Sr–I bond distances ranging from 3.44–3.60 Å. There are two inequivalent I1- sites. In the first I1- site, I1- is bonded to four equivalent Sr2+ atoms to form a mixture of corner and edge-sharing ISr4 tetrahedra. In the second I1- site, I1- is bonded to two equivalent Ba2+ and two equivalent Sr2+ atoms to form a mixture of corner and edge-sharing IBa2Sr2 tetrahedra.

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36 MATERIALS SCIENCEBa-I-SrBaSr2I6crystal structure

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2020-05-03. Materials Data on BaSr2I6 by Materials Project. https://doi.org/10.17188/1748011

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