U.S. Department of EnergyOffice of Scientific and Technical Information
Materials Data on BaNb8O14 by Materials Project
Abstract
BaNb8O14 crystallizes in the orthorhombic Pbca space group. The structure is three-dimensional. Ba2+ is bonded in a 11-coordinate geometry to eleven O2- atoms. There are a spread of Ba–O bond distances ranging from 2.76–3.43 Å. There are eight inequivalent Nb+3.25+ sites. In the first Nb+3.25+ site, Nb+3.25+ is bonded to five O2- atoms to form distorted NbO5 square pyramids that share corners with four NbO5 square pyramids and edges with two equivalent NbO6 octahedra. There are a spread of Nb–O bond distances ranging from 2.06–2.44 Å. In the second Nb+3.25+ site, Nb+3.25+ is bonded to six O2- atoms to form NbO6 octahedra that share a cornercorner with one NbO6 octahedra, corners with four NbO5 square pyramids, and edges with two NbO5 square pyramids. The corner-sharing octahedral tilt angles are 0°. There are a spread of Nb–O bond distances ranging from 1.96–2.18 Å. In the third Nb+3.25+ site, Nb+3.25+ is bonded in a see-saw-like geometry to four O2- atoms. There are one shorter (2.00 Å) and three longer (2.12 Å) Nb–O bond lengths. In the fourth Nb+3.25+ site, Nb+3.25+ is bonded to five O2- atoms to form NbO5 square pyramids that share a cornercorner with one NbO6 octahedra, corners with fivemore »
- Authors:
- Publication Date:
- Other Number(s):
- mp-653781
- 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; BaNb8O14; Ba-Nb-O
- OSTI Identifier:
- 1281238
- DOI:
- https://doi.org/10.17188/1281238
Citation Formats
The Materials Project. Materials Data on BaNb8O14 by Materials Project. United States: N. p., 2019.
Web. doi:10.17188/1281238.
The Materials Project. Materials Data on BaNb8O14 by Materials Project. United States. doi:https://doi.org/10.17188/1281238
The Materials Project. 2019.
"Materials Data on BaNb8O14 by Materials Project". United States. doi:https://doi.org/10.17188/1281238. https://www.osti.gov/servlets/purl/1281238. Pub date:Fri Jan 11 00:00:00 EST 2019
@article{osti_1281238,
title = {Materials Data on BaNb8O14 by Materials Project},
author = {The Materials Project},
abstractNote = {BaNb8O14 crystallizes in the orthorhombic Pbca space group. The structure is three-dimensional. Ba2+ is bonded in a 11-coordinate geometry to eleven O2- atoms. There are a spread of Ba–O bond distances ranging from 2.76–3.43 Å. There are eight inequivalent Nb+3.25+ sites. In the first Nb+3.25+ site, Nb+3.25+ is bonded to five O2- atoms to form distorted NbO5 square pyramids that share corners with four NbO5 square pyramids and edges with two equivalent NbO6 octahedra. There are a spread of Nb–O bond distances ranging from 2.06–2.44 Å. In the second Nb+3.25+ site, Nb+3.25+ is bonded to six O2- atoms to form NbO6 octahedra that share a cornercorner with one NbO6 octahedra, corners with four NbO5 square pyramids, and edges with two NbO5 square pyramids. The corner-sharing octahedral tilt angles are 0°. There are a spread of Nb–O bond distances ranging from 1.96–2.18 Å. In the third Nb+3.25+ site, Nb+3.25+ is bonded in a see-saw-like geometry to four O2- atoms. There are one shorter (2.00 Å) and three longer (2.12 Å) Nb–O bond lengths. In the fourth Nb+3.25+ site, Nb+3.25+ is bonded to five O2- atoms to form NbO5 square pyramids that share a cornercorner with one NbO6 octahedra, corners with five NbO5 square pyramids, an edgeedge with one NbO6 octahedra, and an edgeedge with one NbO5 square pyramid. The corner-sharing octahedral tilt angles are 45°. There are a spread of Nb–O bond distances ranging from 2.07–2.18 Å. In the fifth Nb+3.25+ site, Nb+3.25+ is bonded to five O2- atoms to form distorted NbO5 square pyramids that share corners with two equivalent NbO6 octahedra, corners with five NbO5 square pyramids, and an edgeedge with one NbO6 octahedra. The corner-sharing octahedra tilt angles range from 45–50°. There are a spread of Nb–O bond distances ranging from 2.09–2.56 Å. In the sixth Nb+3.25+ site, Nb+3.25+ is bonded to five O2- atoms to form NbO5 square pyramids that share a cornercorner with one NbO6 octahedra, corners with four NbO5 square pyramids, an edgeedge with one NbO6 octahedra, and an edgeedge with one NbO5 square pyramid. The corner-sharing octahedral tilt angles are 41°. There are a spread of Nb–O bond distances ranging from 2.06–2.19 Å. In the seventh Nb+3.25+ site, Nb+3.25+ is bonded to five O2- atoms to form NbO5 square pyramids that share corners with two equivalent NbO6 octahedra, corners with six NbO5 square pyramids, and an edgeedge with one NbO6 octahedra. The corner-sharing octahedra tilt angles range from 5–45°. There are a spread of Nb–O bond distances ranging from 2.09–2.24 Å. In the eighth Nb+3.25+ site, Nb+3.25+ is bonded to six O2- atoms to form a mixture of distorted corner and edge-sharing NbO6 octahedra. There are a spread of Nb–O bond distances ranging from 1.85–2.17 Å. There are fifteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal pyramidal geometry to one Ba2+ and three Nb+3.25+ atoms. In the second O2- site, O2- is bonded in a 4-coordinate geometry to one Ba2+ and three Nb+3.25+ atoms. In the third O2- site, O2- is bonded in a 4-coordinate geometry to one Ba2+ and three Nb+3.25+ atoms. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to one Ba2+ and three Nb+3.25+ atoms. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to one Ba2+ and two Nb+3.25+ atoms. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to three Nb+3.25+ atoms. In the seventh O2- site, O2- is bonded in a distorted T-shaped geometry to one Ba2+ and three Nb+3.25+ atoms. In the eighth O2- site, O2- is bonded in a linear geometry to two equivalent Ba2+ and two equivalent Nb+3.25+ atoms. In the ninth O2- site, O2- is bonded in a distorted single-bond geometry to three Nb+3.25+ atoms. In the tenth O2- site, O2- is bonded in a 3-coordinate geometry to one Ba2+ and three Nb+3.25+ atoms. In the eleventh O2- site, O2- is bonded in a 3-coordinate geometry to one Ba2+ and three Nb+3.25+ atoms. In the twelfth O2- site, O2- is bonded in a 4-coordinate geometry to one Ba2+ and three Nb+3.25+ atoms. In the thirteenth O2- site, O2- is bonded in a 3-coordinate geometry to three Nb+3.25+ atoms. In the fourteenth O2- site, O2- is bonded in a square co-planar geometry to four Nb+3.25+ atoms. In the fifteenth O2- site, O2- is bonded in a 3-coordinate geometry to one Ba2+ and three Nb+3.25+ atoms.},
doi = {10.17188/1281238},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 11 00:00:00 EST 2019},
month = {Fri Jan 11 00:00:00 EST 2019}
}
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