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

Title: Materials Data on Na3HfF7 by Materials Project

Abstract

Na3HfF7 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 7-coordinate geometry to seven F1- atoms. There are a spread of Na–F bond distances ranging from 2.35–2.55 Å. In the second Na1+ site, Na1+ is bonded in a 5-coordinate geometry to five F1- atoms. There are a spread of Na–F bond distances ranging from 2.27–2.36 Å. Hf4+ is bonded in a distorted pentagonal bipyramidal geometry to seven F1- atoms. There are a spread of Hf–F bond distances ranging from 2.05–2.09 Å. There are five inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted rectangular see-saw-like geometry to three Na1+ and one Hf4+ atom. In the second F1- site, F1- is bonded to three Na1+ and one Hf4+ atom to form a mixture of edge and corner-sharing FNa3Hf tetrahedra. In the third F1- site, F1- is bonded in a 3-coordinate geometry to two equivalent Na1+ and one Hf4+ atom. In the fourth F1- site, F1- is bonded to three Na1+ and one Hf4+ atom to form a mixture of edge and corner-sharing FNa3Hf tetrahedra. In the fifth F1-more » site, F1- is bonded to three Na1+ and one Hf4+ atom to form a mixture of edge and corner-sharing FNa3Hf tetrahedra.« less

Authors:
Publication Date:
Other Number(s):
mp-34579
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; Na3HfF7; F-Hf-Na
OSTI Identifier:
1206854
DOI:
https://doi.org/10.17188/1206854

Citation Formats

The Materials Project. Materials Data on Na3HfF7 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1206854.
The Materials Project. Materials Data on Na3HfF7 by Materials Project. United States. doi:https://doi.org/10.17188/1206854
The Materials Project. 2020. "Materials Data on Na3HfF7 by Materials Project". United States. doi:https://doi.org/10.17188/1206854. https://www.osti.gov/servlets/purl/1206854. Pub date:Wed Jul 22 00:00:00 EDT 2020
@article{osti_1206854,
title = {Materials Data on Na3HfF7 by Materials Project},
author = {The Materials Project},
abstractNote = {Na3HfF7 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 7-coordinate geometry to seven F1- atoms. There are a spread of Na–F bond distances ranging from 2.35–2.55 Å. In the second Na1+ site, Na1+ is bonded in a 5-coordinate geometry to five F1- atoms. There are a spread of Na–F bond distances ranging from 2.27–2.36 Å. Hf4+ is bonded in a distorted pentagonal bipyramidal geometry to seven F1- atoms. There are a spread of Hf–F bond distances ranging from 2.05–2.09 Å. There are five inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted rectangular see-saw-like geometry to three Na1+ and one Hf4+ atom. In the second F1- site, F1- is bonded to three Na1+ and one Hf4+ atom to form a mixture of edge and corner-sharing FNa3Hf tetrahedra. In the third F1- site, F1- is bonded in a 3-coordinate geometry to two equivalent Na1+ and one Hf4+ atom. In the fourth F1- site, F1- is bonded to three Na1+ and one Hf4+ atom to form a mixture of edge and corner-sharing FNa3Hf tetrahedra. In the fifth F1- site, F1- is bonded to three Na1+ and one Hf4+ atom to form a mixture of edge and corner-sharing FNa3Hf tetrahedra.},
doi = {10.17188/1206854},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jul 22 00:00:00 EDT 2020},
month = {Wed Jul 22 00:00:00 EDT 2020}
}