U.S. Department of EnergyOffice of Scientific and Technical Information
Materials Data on Ba4(NbSe4)3 by Materials Project
Abstract
Ba4(NbSe4)3 crystallizes in the monoclinic P2/m space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded to twelve Se+1.92- atoms to form BaSe12 cuboctahedra that share corners with six BaSe12 cuboctahedra, corners with four NbSe6 octahedra, faces with eight BaSe12 cuboctahedra, and faces with four NbSe6 octahedra. The corner-sharing octahedra tilt angles range from 18–23°. There are a spread of Ba–Se bond distances ranging from 3.42–3.83 Å. In the second Ba2+ site, Ba2+ is bonded to twelve Se+1.92- atoms to form distorted BaSe12 cuboctahedra that share corners with six BaSe12 cuboctahedra, corners with five NbSe6 octahedra, faces with eight BaSe12 cuboctahedra, and faces with five NbSe6 octahedra. The corner-sharing octahedra tilt angles range from 20–24°. There are a spread of Ba–Se bond distances ranging from 3.42–3.81 Å. There are three inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded to six Se+1.92- atoms to form NbSe6 octahedra that share corners with six BaSe12 cuboctahedra, faces with six BaSe12 cuboctahedra, and faces with two equivalent NbSe6 octahedra. There are four shorter (2.60 Å) and two longer (2.64 Å) Nb–Se bond lengths. In the second Nb5+ site, Nb5+ is bondedmore »
- Publication Date:
- Other Number(s):
- mp-1228166
- DOE Contract Number:
- AC02-05CH11231
- Research Org.:
- LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Collaborations:
- The Materials Project; MIT; UC Berkeley; Duke; U Louvain
- Subject:
- 36 MATERIALS SCIENCE; Ba-Nb-Se; Ba4(NbSe4)3; crystal structure
- OSTI Identifier:
- 1727644
- DOI:
- https://doi.org/10.17188/1727644
Citation Formats
Materials Data on Ba4(NbSe4)3 by Materials Project. United States: N. p., 2020.
Web. doi:10.17188/1727644.
Materials Data on Ba4(NbSe4)3 by Materials Project. United States. doi:https://doi.org/10.17188/1727644
2020.
"Materials Data on Ba4(NbSe4)3 by Materials Project". United States. doi:https://doi.org/10.17188/1727644. https://www.osti.gov/servlets/purl/1727644. Pub date:Sun May 03 00:00:00 EDT 2020
@article{osti_1727644,
title = {Materials Data on Ba4(NbSe4)3 by Materials Project},
abstractNote = {Ba4(NbSe4)3 crystallizes in the monoclinic P2/m space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded to twelve Se+1.92- atoms to form BaSe12 cuboctahedra that share corners with six BaSe12 cuboctahedra, corners with four NbSe6 octahedra, faces with eight BaSe12 cuboctahedra, and faces with four NbSe6 octahedra. The corner-sharing octahedra tilt angles range from 18–23°. There are a spread of Ba–Se bond distances ranging from 3.42–3.83 Å. In the second Ba2+ site, Ba2+ is bonded to twelve Se+1.92- atoms to form distorted BaSe12 cuboctahedra that share corners with six BaSe12 cuboctahedra, corners with five NbSe6 octahedra, faces with eight BaSe12 cuboctahedra, and faces with five NbSe6 octahedra. The corner-sharing octahedra tilt angles range from 20–24°. There are a spread of Ba–Se bond distances ranging from 3.42–3.81 Å. There are three inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded to six Se+1.92- atoms to form NbSe6 octahedra that share corners with six BaSe12 cuboctahedra, faces with six BaSe12 cuboctahedra, and faces with two equivalent NbSe6 octahedra. There are four shorter (2.60 Å) and two longer (2.64 Å) Nb–Se bond lengths. In the second Nb5+ site, Nb5+ is bonded to six Se+1.92- atoms to form NbSe6 octahedra that share corners with six BaSe12 cuboctahedra and faces with six BaSe12 cuboctahedra. There are four shorter (2.59 Å) and two longer (2.63 Å) Nb–Se bond lengths. In the third Nb5+ site, Nb5+ is bonded to six Se+1.92- atoms to form NbSe6 octahedra that share corners with six BaSe12 cuboctahedra, faces with six BaSe12 cuboctahedra, and faces with two equivalent NbSe6 octahedra. There are four shorter (2.59 Å) and two longer (2.65 Å) Nb–Se bond lengths. There are four inequivalent Se+1.92- sites. In the first Se+1.92- site, Se+1.92- is bonded in a 6-coordinate geometry to four Ba2+ and two Nb5+ atoms. In the second Se+1.92- site, Se+1.92- is bonded in a 1-coordinate geometry to four Ba2+ and one Nb5+ atom. In the third Se+1.92- site, Se+1.92- is bonded in a 1-coordinate geometry to four Ba2+ and one Nb5+ atom. In the fourth Se+1.92- site, Se+1.92- is bonded in a 2-coordinate geometry to four Ba2+ and two Nb5+ atoms.},
doi = {10.17188/1727644},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun May 03 00:00:00 EDT 2020},
month = {Sun May 03 00:00:00 EDT 2020}
}