U.S. Department of EnergyOffice of Scientific and Technical Information
Materials Data on Sr2CaI6 by Materials Project
Abstract
Sr2CaI6 is zeta iron carbide-derived structured and crystallizes in the trigonal P321 space group. The structure is three-dimensional. there are two inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded to six I1- atoms to form SrI6 octahedra that share corners with four equivalent CaI6 octahedra, corners with six equivalent SrI6 octahedra, and an edgeedge with one CaI6 octahedra. The corner-sharing octahedra tilt angles range from 51–53°. There are a spread of Sr–I bond distances ranging from 3.31–3.34 Å. In the second Sr2+ site, Sr2+ is bonded to six I1- atoms to form SrI6 octahedra that share corners with two equivalent CaI6 octahedra, corners with six equivalent SrI6 octahedra, and edges with two equivalent CaI6 octahedra. The corner-sharing octahedra tilt angles range from 51–56°. There are four shorter (3.30 Å) and two longer (3.31 Å) Sr–I bond lengths. There are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded to six I1- atoms to form CaI6 octahedra that share corners with six equivalent SrI6 octahedra and edges with three equivalent SrI6 octahedra. The corner-sharing octahedra tilt angles range from 51–53°. There are three shorter (3.15 Å) and three longer (3.16 Å) Ca–I bond lengths. Inmore »
- Authors:
- Publication Date:
- Other Number(s):
- mp-756238
- DOE Contract Number:
- AC02-05CH11231; EDCBEE
- 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)
- Collaborations:
- MIT; UC Berkeley; Duke; U Louvain
- Subject:
- 36 MATERIALS SCIENCE
- Keywords:
- crystal structure; Sr2CaI6; Ca-I-Sr
- OSTI Identifier:
- 1290452
- DOI:
- https://doi.org/10.17188/1290452
Citation Formats
The Materials Project. Materials Data on Sr2CaI6 by Materials Project. United States: N. p., 2020.
Web. doi:10.17188/1290452.
The Materials Project. Materials Data on Sr2CaI6 by Materials Project. United States. doi:https://doi.org/10.17188/1290452
The Materials Project. 2020.
"Materials Data on Sr2CaI6 by Materials Project". United States. doi:https://doi.org/10.17188/1290452. https://www.osti.gov/servlets/purl/1290452. Pub date:Wed Jul 15 00:00:00 EDT 2020
@article{osti_1290452,
title = {Materials Data on Sr2CaI6 by Materials Project},
author = {The Materials Project},
abstractNote = {Sr2CaI6 is zeta iron carbide-derived structured and crystallizes in the trigonal P321 space group. The structure is three-dimensional. there are two inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded to six I1- atoms to form SrI6 octahedra that share corners with four equivalent CaI6 octahedra, corners with six equivalent SrI6 octahedra, and an edgeedge with one CaI6 octahedra. The corner-sharing octahedra tilt angles range from 51–53°. There are a spread of Sr–I bond distances ranging from 3.31–3.34 Å. In the second Sr2+ site, Sr2+ is bonded to six I1- atoms to form SrI6 octahedra that share corners with two equivalent CaI6 octahedra, corners with six equivalent SrI6 octahedra, and edges with two equivalent CaI6 octahedra. The corner-sharing octahedra tilt angles range from 51–56°. There are four shorter (3.30 Å) and two longer (3.31 Å) Sr–I bond lengths. There are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded to six I1- atoms to form CaI6 octahedra that share corners with six equivalent SrI6 octahedra and edges with three equivalent SrI6 octahedra. The corner-sharing octahedra tilt angles range from 51–53°. There are three shorter (3.15 Å) and three longer (3.16 Å) Ca–I bond lengths. In the second Ca2+ site, Ca2+ is bonded to six equivalent I1- atoms to form CaI6 octahedra that share corners with six equivalent SrI6 octahedra and edges with three equivalent SrI6 octahedra. The corner-sharing octahedral tilt angles are 56°. All Ca–I bond lengths are 3.15 Å. There are three inequivalent I1- sites. In the first I1- site, I1- is bonded in a distorted trigonal planar geometry to two Sr2+ and one Ca2+ atom. In the second I1- site, I1- is bonded in a distorted trigonal planar geometry to two Sr2+ and one Ca2+ atom. In the third I1- site, I1- is bonded in a distorted trigonal planar geometry to two Sr2+ and one Ca2+ atom.},
doi = {10.17188/1290452},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jul 15 00:00:00 EDT 2020},
month = {Wed Jul 15 00:00:00 EDT 2020}
}