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DOE OSTI · 1289605

Materials Data on BaSrI4 by Materials Project

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Abstract

BaSrI4 is Fluorite-derived structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Ba2+ is bonded in a body-centered cubic geometry to eight I1- atoms. There are six shorter (3.61 Å) and two longer (3.63 Å) Ba–I bond lengths. Sr2+ is bonded in a body-centered cubic geometry to eight I1- atoms. There are two shorter (3.45 Å) and six longer (3.55 Å) Sr–I bond lengths. There are two inequivalent I1- sites. In the first I1- site, I1- is bonded to three equivalent Ba2+ and one Sr2+ atom to form a mixture of edge and corner-sharing IBa3Sr tetrahedra. In the second I1- site, I1- is bonded to one Ba2+ and three equivalent Sr2+ atoms to form a mixture of edge and corner-sharing IBaSr3 tetrahedra.

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36 MATERIALS SCIENCEBa-I-SrBaSrI4crystal structure

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2020-07-22. Materials Data on BaSrI4 by Materials Project. https://doi.org/10.17188/1289605

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