skip to main content
DOE Data Explorer title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Materials Data on Ba2YF7 by Materials Project

Abstract

Ba2YF7 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded to seven F1- atoms to form BaF7 pentagonal bipyramids that share corners with three equivalent YF6 octahedra, corners with two equivalent BaF7 pentagonal bipyramids, and an edgeedge with one YF6 octahedra. The corner-sharing octahedra tilt angles range from 35–57°. There are a spread of Ba–F bond distances ranging from 2.64–2.75 Å. In the second Ba2+ site, Ba2+ is bonded in a 7-coordinate geometry to seven F1- atoms. There are a spread of Ba–F bond distances ranging from 2.61–2.80 Å. Y3+ is bonded to six F1- atoms to form YF6 octahedra that share corners with three equivalent BaF7 pentagonal bipyramids and an edgeedge with one BaF7 pentagonal bipyramid. There are a spread of Y–F bond distances ranging from 2.17–2.21 Å. There are five inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted trigonal planar geometry to two Ba2+ and one Y3+ atom. In the second F1- site, F1- is bonded in a bent 150 degrees geometry to one Ba2+ and one Y3+ atom. In the third F1- site, F1- ismore » bonded in a trigonal planar geometry to three Ba2+ atoms. In the fourth F1- site, F1- is bonded in a 3-coordinate geometry to two Ba2+ and one Y3+ atom. In the fifth F1- site, F1- is bonded in a 3-coordinate geometry to two Ba2+ and one Y3+ atom.« less

Publication Date:
Other Number(s):
mp-768369
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; Ba2YF7; Ba-F-Y
OSTI Identifier:
1298395
DOI:
https://doi.org/10.17188/1298395

Citation Formats

The Materials Project. Materials Data on Ba2YF7 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1298395.
The Materials Project. Materials Data on Ba2YF7 by Materials Project. United States. doi:https://doi.org/10.17188/1298395
The Materials Project. 2020. "Materials Data on Ba2YF7 by Materials Project". United States. doi:https://doi.org/10.17188/1298395. https://www.osti.gov/servlets/purl/1298395. Pub date:Wed Jul 15 00:00:00 EDT 2020
@article{osti_1298395,
title = {Materials Data on Ba2YF7 by Materials Project},
author = {The Materials Project},
abstractNote = {Ba2YF7 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded to seven F1- atoms to form BaF7 pentagonal bipyramids that share corners with three equivalent YF6 octahedra, corners with two equivalent BaF7 pentagonal bipyramids, and an edgeedge with one YF6 octahedra. The corner-sharing octahedra tilt angles range from 35–57°. There are a spread of Ba–F bond distances ranging from 2.64–2.75 Å. In the second Ba2+ site, Ba2+ is bonded in a 7-coordinate geometry to seven F1- atoms. There are a spread of Ba–F bond distances ranging from 2.61–2.80 Å. Y3+ is bonded to six F1- atoms to form YF6 octahedra that share corners with three equivalent BaF7 pentagonal bipyramids and an edgeedge with one BaF7 pentagonal bipyramid. There are a spread of Y–F bond distances ranging from 2.17–2.21 Å. There are five inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted trigonal planar geometry to two Ba2+ and one Y3+ atom. In the second F1- site, F1- is bonded in a bent 150 degrees geometry to one Ba2+ and one Y3+ atom. In the third F1- site, F1- is bonded in a trigonal planar geometry to three Ba2+ atoms. In the fourth F1- site, F1- is bonded in a 3-coordinate geometry to two Ba2+ and one Y3+ atom. In the fifth F1- site, F1- is bonded in a 3-coordinate geometry to two Ba2+ and one Y3+ atom.},
doi = {10.17188/1298395},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}