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DOE OSTI · 1288597

Materials Data on Ba2SrI6 by Materials Project

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Abstract

Ba2SrI6 is beta Vanadium nitride-derived structured and crystallizes in the cubic Ia-3 space group. The structure is three-dimensional. Ba2+ is bonded to six equivalent I1- atoms to form distorted BaI6 octahedra that share corners with three equivalent SrI6 octahedra, edges with three equivalent BaI6 octahedra, and a faceface with one SrI6 octahedra. The corner-sharing octahedral tilt angles are 45°. There are three shorter (3.50 Å) and three longer (3.56 Å) Ba–I bond lengths. Sr2+ is bonded to six equivalent I1- atoms to form SrI6 octahedra that share corners with six equivalent BaI6 octahedra and faces with two equivalent BaI6 octahedra. The corner-sharing octahedral tilt angles are 45°. All Sr–I bond lengths are 3.30 Å. I1- is bonded in a 3-coordinate geometry to two equivalent Ba2+ and one Sr2+ atom.

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36 MATERIALS SCIENCEBa-I-SrBa2SrI6crystal structure

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2020-04-29. Materials Data on Ba2SrI6 by Materials Project. https://doi.org/10.17188/1288597

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