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DOE OSTI · 1716997

Materials Data on RbSrI3 by Materials Project

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Abstract

RbSrI3 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Rb1+ is bonded in a 8-coordinate geometry to eight I1- atoms. There are a spread of Rb–I bond distances ranging from 3.73–4.19 Å. Sr2+ is bonded to six I1- atoms to form a mixture of corner and edge-sharing SrI6 octahedra. The corner-sharing octahedral tilt angles are 43°. There are two shorter (3.30 Å) and four longer (3.33 Å) Sr–I bond lengths. There are two inequivalent I1- sites. In the first I1- site, I1- is bonded in a 5-coordinate geometry to three equivalent Rb1+ and two equivalent Sr2+ atoms. In the second I1- site, I1- is bonded to two equivalent Rb1+ and two equivalent Sr2+ atoms to form distorted corner-sharing IRb2Sr2 tetrahedra.

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36 MATERIALS SCIENCEcrystal structureI-Rb-SrRbSrI3

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2020-05-09. Materials Data on RbSrI3 by Materials Project. https://doi.org/10.17188/1716997

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