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Title: Materials Data on Ba2Ca7I18 by Materials Project

Abstract

Ba2Ca7I18 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Ba2+ is bonded in a 7-coordinate geometry to seven I1- atoms. There are a spread of Ba–I bond distances ranging from 3.52–4.23 Å. There are four inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded to six I1- atoms to form a mixture of edge and corner-sharing CaI6 octahedra. The corner-sharing octahedra tilt angles range from 50–62°. There are a spread of Ca–I bond distances ranging from 3.08–3.28 Å. In the second Ca2+ site, Ca2+ is bonded to six I1- atoms to form a mixture of edge and corner-sharing CaI6 octahedra. The corner-sharing octahedra tilt angles range from 57–60°. There are a spread of Ca–I bond distances ranging from 3.12–3.20 Å. In the third Ca2+ site, Ca2+ is bonded to six I1- atoms to form a mixture of edge and corner-sharing CaI6 octahedra. The corner-sharing octahedra tilt angles range from 53–58°. There are a spread of Ca–I bond distances ranging from 3.11–3.23 Å. In the fourth Ca2+ site, Ca2+ is bonded to six I1- atoms to form a mixture of edge and corner-sharing CaI6 octahedra. The corner-sharing octahedra tilt angles range from 50–62°. There are amore » spread of Ca–I bond distances ranging from 3.07–3.25 Å. There are nine inequivalent I1- sites. In the first I1- site, I1- is bonded in a distorted bent 120 degrees geometry to one Ba2+ and two Ca2+ atoms. In the second I1- site, I1- is bonded in a distorted trigonal non-coplanar geometry to one Ba2+ and two Ca2+ atoms. In the third I1- site, I1- is bonded in a distorted trigonal non-coplanar geometry to one Ba2+ and two Ca2+ atoms. In the fourth I1- site, I1- is bonded in a distorted trigonal planar geometry to three Ca2+ atoms. In the fifth I1- site, I1- is bonded in a 3-coordinate geometry to three Ca2+ atoms. In the sixth I1- site, I1- is bonded in a 3-coordinate geometry to one Ba2+ and two Ca2+ atoms. In the seventh I1- site, I1- is bonded in an L-shaped geometry to two Ca2+ atoms. In the eighth I1- site, I1- is bonded in a 3-coordinate geometry to one Ba2+ and three Ca2+ atoms. In the ninth I1- site, I1- is bonded to two equivalent Ba2+ and two Ca2+ atoms to form a mixture of distorted edge and corner-sharing IBa2Ca2 trigonal pyramids.« less

Publication Date:
Other Number(s):
mp-766303
DOE Contract Number:  
AC02-05CH11231; EDCBEE
Product Type:
Dataset
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Subject:
36 MATERIALS SCIENCE
Keywords:
crystal structure; Ba2Ca7I18; Ba-Ca-I
OSTI Identifier:
1296829
DOI:
10.17188/1296829

Citation Formats

The Materials Project. Materials Data on Ba2Ca7I18 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1296829.
The Materials Project. Materials Data on Ba2Ca7I18 by Materials Project. United States. doi:10.17188/1296829.
The Materials Project. 2020. "Materials Data on Ba2Ca7I18 by Materials Project". United States. doi:10.17188/1296829. https://www.osti.gov/servlets/purl/1296829. Pub date:Wed Jul 15 00:00:00 EDT 2020
@article{osti_1296829,
title = {Materials Data on Ba2Ca7I18 by Materials Project},
author = {The Materials Project},
abstractNote = {Ba2Ca7I18 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Ba2+ is bonded in a 7-coordinate geometry to seven I1- atoms. There are a spread of Ba–I bond distances ranging from 3.52–4.23 Å. There are four inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded to six I1- atoms to form a mixture of edge and corner-sharing CaI6 octahedra. The corner-sharing octahedra tilt angles range from 50–62°. There are a spread of Ca–I bond distances ranging from 3.08–3.28 Å. In the second Ca2+ site, Ca2+ is bonded to six I1- atoms to form a mixture of edge and corner-sharing CaI6 octahedra. The corner-sharing octahedra tilt angles range from 57–60°. There are a spread of Ca–I bond distances ranging from 3.12–3.20 Å. In the third Ca2+ site, Ca2+ is bonded to six I1- atoms to form a mixture of edge and corner-sharing CaI6 octahedra. The corner-sharing octahedra tilt angles range from 53–58°. There are a spread of Ca–I bond distances ranging from 3.11–3.23 Å. In the fourth Ca2+ site, Ca2+ is bonded to six I1- atoms to form a mixture of edge and corner-sharing CaI6 octahedra. The corner-sharing octahedra tilt angles range from 50–62°. There are a spread of Ca–I bond distances ranging from 3.07–3.25 Å. There are nine inequivalent I1- sites. In the first I1- site, I1- is bonded in a distorted bent 120 degrees geometry to one Ba2+ and two Ca2+ atoms. In the second I1- site, I1- is bonded in a distorted trigonal non-coplanar geometry to one Ba2+ and two Ca2+ atoms. In the third I1- site, I1- is bonded in a distorted trigonal non-coplanar geometry to one Ba2+ and two Ca2+ atoms. In the fourth I1- site, I1- is bonded in a distorted trigonal planar geometry to three Ca2+ atoms. In the fifth I1- site, I1- is bonded in a 3-coordinate geometry to three Ca2+ atoms. In the sixth I1- site, I1- is bonded in a 3-coordinate geometry to one Ba2+ and two Ca2+ atoms. In the seventh I1- site, I1- is bonded in an L-shaped geometry to two Ca2+ atoms. In the eighth I1- site, I1- is bonded in a 3-coordinate geometry to one Ba2+ and three Ca2+ atoms. In the ninth I1- site, I1- is bonded to two equivalent Ba2+ and two Ca2+ atoms to form a mixture of distorted edge and corner-sharing IBa2Ca2 trigonal pyramids.},
doi = {10.17188/1296829},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}

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