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Title: Materials Data on SrNb6O16 by Materials Project

Abstract

SrNb6O16 crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.59–2.76 Å. There are four inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with six NbO6 octahedra and an edgeedge with one NbO7 pentagonal bipyramid. The corner-sharing octahedra tilt angles range from 4–51°. There are a spread of Nb–O bond distances ranging from 1.95–2.09 Å. In the second Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted NbO6 octahedra that share corners with six NbO6 octahedra and an edgeedge with one NbO7 pentagonal bipyramid. The corner-sharing octahedra tilt angles range from 21–42°. There are a spread of Nb–O bond distances ranging from 1.87–2.18 Å. In the third Nb5+ site, Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with six NbO6 octahedra and an edgeedge with one NbO7 pentagonal bipyramid. The corner-sharing octahedra tilt angles range from 16–51°. There are a spread of Nb–O bond distances ranging from 1.94–2.12 Å. In the fourth Nb5+ site,more » Nb5+ is bonded to seven O2- atoms to form NbO7 pentagonal bipyramids that share corners with two equivalent NbO7 pentagonal bipyramids and edges with five NbO6 octahedra. There are a spread of Nb–O bond distances ranging from 1.96–2.20 Å. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Sr2+ and two equivalent Nb5+ atoms to form distorted corner-sharing OSr2Nb2 tetrahedra. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to three Nb5+ atoms. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to two Nb5+ atoms. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Nb5+ atoms. In the fifth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two equivalent Sr2+ and two Nb5+ atoms. In the sixth O2- site, O2- is bonded in a linear geometry to two equivalent Nb5+ atoms. In the seventh O2- site, O2- is bonded in a 3-coordinate geometry to one Sr2+ and two equivalent Nb5+ atoms. In the eighth O2- site, O2- is bonded in a 2-coordinate geometry to one Sr2+ and two equivalent Nb5+ atoms. In the ninth O2- site, O2- is bonded in a linear geometry to two equivalent Nb5+ atoms. In the tenth O2- site, O2- is bonded in a 3-coordinate geometry to three Nb5+ atoms.« less

Publication Date:
Other Number(s):
mp-14482
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; SrNb6O16; Nb-O-Sr
OSTI Identifier:
1190696
DOI:
https://doi.org/10.17188/1190696

Citation Formats

The Materials Project. Materials Data on SrNb6O16 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1190696.
The Materials Project. Materials Data on SrNb6O16 by Materials Project. United States. doi:https://doi.org/10.17188/1190696
The Materials Project. 2020. "Materials Data on SrNb6O16 by Materials Project". United States. doi:https://doi.org/10.17188/1190696. https://www.osti.gov/servlets/purl/1190696. Pub date:Fri Jul 17 00:00:00 EDT 2020
@article{osti_1190696,
title = {Materials Data on SrNb6O16 by Materials Project},
author = {The Materials Project},
abstractNote = {SrNb6O16 crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.59–2.76 Å. There are four inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with six NbO6 octahedra and an edgeedge with one NbO7 pentagonal bipyramid. The corner-sharing octahedra tilt angles range from 4–51°. There are a spread of Nb–O bond distances ranging from 1.95–2.09 Å. In the second Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted NbO6 octahedra that share corners with six NbO6 octahedra and an edgeedge with one NbO7 pentagonal bipyramid. The corner-sharing octahedra tilt angles range from 21–42°. There are a spread of Nb–O bond distances ranging from 1.87–2.18 Å. In the third Nb5+ site, Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with six NbO6 octahedra and an edgeedge with one NbO7 pentagonal bipyramid. The corner-sharing octahedra tilt angles range from 16–51°. There are a spread of Nb–O bond distances ranging from 1.94–2.12 Å. In the fourth Nb5+ site, Nb5+ is bonded to seven O2- atoms to form NbO7 pentagonal bipyramids that share corners with two equivalent NbO7 pentagonal bipyramids and edges with five NbO6 octahedra. There are a spread of Nb–O bond distances ranging from 1.96–2.20 Å. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Sr2+ and two equivalent Nb5+ atoms to form distorted corner-sharing OSr2Nb2 tetrahedra. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to three Nb5+ atoms. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to two Nb5+ atoms. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Nb5+ atoms. In the fifth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two equivalent Sr2+ and two Nb5+ atoms. In the sixth O2- site, O2- is bonded in a linear geometry to two equivalent Nb5+ atoms. In the seventh O2- site, O2- is bonded in a 3-coordinate geometry to one Sr2+ and two equivalent Nb5+ atoms. In the eighth O2- site, O2- is bonded in a 2-coordinate geometry to one Sr2+ and two equivalent Nb5+ atoms. In the ninth O2- site, O2- is bonded in a linear geometry to two equivalent Nb5+ atoms. In the tenth O2- site, O2- is bonded in a 3-coordinate geometry to three Nb5+ atoms.},
doi = {10.17188/1190696},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}