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DOE OSTI · 1301084

Materials Data on Ba2LaI7 by Materials Project

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Abstract

Ba2LaI7 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded in a distorted pentagonal bipyramidal geometry to seven I1- atoms. There are a spread of Ba–I bond distances ranging from 3.38–3.87 Å. In the second Ba2+ site, Ba2+ is bonded in a 8-coordinate geometry to eight I1- atoms. There are a spread of Ba–I bond distances ranging from 3.52–3.74 Å. La3+ is bonded in a 7-coordinate geometry to seven I1- atoms. There are a spread of La–I bond distances ranging from 3.19–3.86 Å. There are seven inequivalent I1- sites. In the first I1- site, I1- is bonded in a distorted trigonal non-coplanar geometry to two Ba2+ and one La3+ atom. In the second I1- site, I1- is bonded in a 3-coordinate geometry to three Ba2+ atoms. In the third I1- site, I1- is bonded in a distorted T-shaped geometry to two Ba2+ and one La3+ atom. In the fourth I1- site, I1- is bonded in a distorted T-shaped geometry to two Ba2+ and one La3+ atom. In the fifth I1- site, I1- is bonded in a 3-coordinate geometry to two Ba2+ and one La3+ atom. In the sixth I1- site, I1- is bonded in a 3-coordinate geometry to two Ba2+ and one La3+ atom. In the seventh I1- site, I1- is bonded in a 4-coordinate geometry to two Ba2+ and two equivalent La3+ atoms.

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36 MATERIALS SCIENCEBa-I-LaBa2LaI7crystal structure

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2020-05-29. Materials Data on Ba2LaI7 by Materials Project. https://doi.org/10.17188/1301084

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