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Title: Materials Data on BaNa2Fe4F12 by Materials Project

Abstract

Na2BaFe4F12 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six F1- atoms. There are a spread of Na–F bond distances ranging from 2.32–2.61 Å. In the second Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six F1- atoms. There are a spread of Na–F bond distances ranging from 2.35–2.70 Å. Ba2+ is bonded to twelve F1- atoms to form BaF12 cuboctahedra that share faces with eight FeF6 octahedra. There are a spread of Ba–F bond distances ranging from 2.82–2.91 Å. There are two inequivalent Fe2+ sites. In the first Fe2+ site, Fe2+ is bonded to six F1- atoms to form FeF6 octahedra that share corners with six FeF6 octahedra and faces with two equivalent BaF12 cuboctahedra. The corner-sharing octahedra tilt angles range from 23–34°. There are a spread of Fe–F bond distances ranging from 2.07–2.15 Å. In the second Fe2+ site, Fe2+ is bonded to six F1- atoms to form FeF6 octahedra that share corners with six FeF6 octahedra and faces with two equivalent BaF12 cuboctahedra. The corner-sharing octahedra tilt angles range from 22–34°. There aremore » a spread of Fe–F bond distances ranging from 2.06–2.16 Å. There are eight inequivalent F1- sites. In the first F1- site, F1- is bonded in a 4-coordinate geometry to one Na1+, one Ba2+, and two Fe2+ atoms. In the second F1- site, F1- is bonded in a 5-coordinate geometry to two Na1+, one Ba2+, and two Fe2+ atoms. In the third F1- site, F1- is bonded in a 4-coordinate geometry to one Na1+, one Ba2+, and two Fe2+ atoms. In the fourth F1- site, F1- is bonded in a 4-coordinate geometry to one Na1+, one Ba2+, and two Fe2+ atoms. In the fifth F1- site, F1- is bonded in a distorted bent 150 degrees geometry to one Ba2+ and two equivalent Fe2+ atoms. In the sixth F1- site, F1- is bonded in a 4-coordinate geometry to one Na1+, one Ba2+, and two equivalent Fe2+ atoms. In the seventh F1- site, F1- is bonded in a distorted bent 150 degrees geometry to one Ba2+ and two equivalent Fe2+ atoms. In the eighth F1- site, F1- is bonded in a 4-coordinate geometry to one Na1+, one Ba2+, and two equivalent Fe2+ atoms.« less

Authors:
Publication Date:
Other Number(s):
mp-1227924
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; BaNa2Fe4F12; Ba-F-Fe-Na
OSTI Identifier:
1689195
DOI:
https://doi.org/10.17188/1689195

Citation Formats

The Materials Project. Materials Data on BaNa2Fe4F12 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1689195.
The Materials Project. Materials Data on BaNa2Fe4F12 by Materials Project. United States. doi:https://doi.org/10.17188/1689195
The Materials Project. 2020. "Materials Data on BaNa2Fe4F12 by Materials Project". United States. doi:https://doi.org/10.17188/1689195. https://www.osti.gov/servlets/purl/1689195. Pub date:Wed Apr 29 00:00:00 EDT 2020
@article{osti_1689195,
title = {Materials Data on BaNa2Fe4F12 by Materials Project},
author = {The Materials Project},
abstractNote = {Na2BaFe4F12 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six F1- atoms. There are a spread of Na–F bond distances ranging from 2.32–2.61 Å. In the second Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six F1- atoms. There are a spread of Na–F bond distances ranging from 2.35–2.70 Å. Ba2+ is bonded to twelve F1- atoms to form BaF12 cuboctahedra that share faces with eight FeF6 octahedra. There are a spread of Ba–F bond distances ranging from 2.82–2.91 Å. There are two inequivalent Fe2+ sites. In the first Fe2+ site, Fe2+ is bonded to six F1- atoms to form FeF6 octahedra that share corners with six FeF6 octahedra and faces with two equivalent BaF12 cuboctahedra. The corner-sharing octahedra tilt angles range from 23–34°. There are a spread of Fe–F bond distances ranging from 2.07–2.15 Å. In the second Fe2+ site, Fe2+ is bonded to six F1- atoms to form FeF6 octahedra that share corners with six FeF6 octahedra and faces with two equivalent BaF12 cuboctahedra. The corner-sharing octahedra tilt angles range from 22–34°. There are a spread of Fe–F bond distances ranging from 2.06–2.16 Å. There are eight inequivalent F1- sites. In the first F1- site, F1- is bonded in a 4-coordinate geometry to one Na1+, one Ba2+, and two Fe2+ atoms. In the second F1- site, F1- is bonded in a 5-coordinate geometry to two Na1+, one Ba2+, and two Fe2+ atoms. In the third F1- site, F1- is bonded in a 4-coordinate geometry to one Na1+, one Ba2+, and two Fe2+ atoms. In the fourth F1- site, F1- is bonded in a 4-coordinate geometry to one Na1+, one Ba2+, and two Fe2+ atoms. In the fifth F1- site, F1- is bonded in a distorted bent 150 degrees geometry to one Ba2+ and two equivalent Fe2+ atoms. In the sixth F1- site, F1- is bonded in a 4-coordinate geometry to one Na1+, one Ba2+, and two equivalent Fe2+ atoms. In the seventh F1- site, F1- is bonded in a distorted bent 150 degrees geometry to one Ba2+ and two equivalent Fe2+ atoms. In the eighth F1- site, F1- is bonded in a 4-coordinate geometry to one Na1+, one Ba2+, and two equivalent Fe2+ atoms.},
doi = {10.17188/1689195},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {4}
}