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Title: Materials Data on NaW2(Br3O)2 by Materials Project

Abstract

NaW2(OBr3)2 crystallizes in the monoclinic Cm space group. The structure is two-dimensional and consists of two NaW2(OBr3)2 sheets oriented in the (1, 0, 0) direction. Na1+ is bonded in a body-centered cubic geometry to eight Br1- atoms. There are a spread of Na–Br bond distances ranging from 3.20–3.30 Å. There are two inequivalent W+4.50+ sites. In the first W+4.50+ site, W+4.50+ is bonded to two equivalent O2- and four Br1- atoms to form a mixture of distorted edge and corner-sharing WBr4O2 octahedra. The corner-sharing octahedral tilt angles are 3°. Both W–O bond lengths are 1.94 Å. There are a spread of W–Br bond distances ranging from 2.54–2.71 Å. In the second W+4.50+ site, W+4.50+ is bonded to two equivalent O2- and four Br1- atoms to form a mixture of distorted edge and corner-sharing WBr4O2 octahedra. The corner-sharing octahedral tilt angles are 3°. Both W–O bond lengths are 1.94 Å. There are a spread of W–Br bond distances ranging from 2.54–2.71 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a linear geometry to two equivalent W+4.50+ atoms. In the second O2- site, O2- is bonded in a linear geometry to two equivalent W+4.50+more » atoms. There are six inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 3-coordinate geometry to two equivalent Na1+ and one W+4.50+ atom. In the second Br1- site, Br1- is bonded in a distorted L-shaped geometry to two W+4.50+ atoms. In the third Br1- site, Br1- is bonded in a 3-coordinate geometry to two equivalent Na1+ and one W+4.50+ atom. In the fourth Br1- site, Br1- is bonded in a 3-coordinate geometry to two equivalent Na1+ and one W+4.50+ atom. In the fifth Br1- site, Br1- is bonded in a 3-coordinate geometry to two equivalent Na1+ and one W+4.50+ atom. In the sixth Br1- site, Br1- is bonded in a distorted L-shaped geometry to two W+4.50+ atoms.« less

Publication Date:
Other Number(s):
mp-557030
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; NaW2(Br3O)2; Br-Na-O-W
OSTI Identifier:
1269664
DOI:
10.17188/1269664

Citation Formats

The Materials Project. Materials Data on NaW2(Br3O)2 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1269664.
The Materials Project. Materials Data on NaW2(Br3O)2 by Materials Project. United States. doi:10.17188/1269664.
The Materials Project. 2020. "Materials Data on NaW2(Br3O)2 by Materials Project". United States. doi:10.17188/1269664. https://www.osti.gov/servlets/purl/1269664. Pub date:Tue Jul 14 00:00:00 EDT 2020
@article{osti_1269664,
title = {Materials Data on NaW2(Br3O)2 by Materials Project},
author = {The Materials Project},
abstractNote = {NaW2(OBr3)2 crystallizes in the monoclinic Cm space group. The structure is two-dimensional and consists of two NaW2(OBr3)2 sheets oriented in the (1, 0, 0) direction. Na1+ is bonded in a body-centered cubic geometry to eight Br1- atoms. There are a spread of Na–Br bond distances ranging from 3.20–3.30 Å. There are two inequivalent W+4.50+ sites. In the first W+4.50+ site, W+4.50+ is bonded to two equivalent O2- and four Br1- atoms to form a mixture of distorted edge and corner-sharing WBr4O2 octahedra. The corner-sharing octahedral tilt angles are 3°. Both W–O bond lengths are 1.94 Å. There are a spread of W–Br bond distances ranging from 2.54–2.71 Å. In the second W+4.50+ site, W+4.50+ is bonded to two equivalent O2- and four Br1- atoms to form a mixture of distorted edge and corner-sharing WBr4O2 octahedra. The corner-sharing octahedral tilt angles are 3°. Both W–O bond lengths are 1.94 Å. There are a spread of W–Br bond distances ranging from 2.54–2.71 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a linear geometry to two equivalent W+4.50+ atoms. In the second O2- site, O2- is bonded in a linear geometry to two equivalent W+4.50+ atoms. There are six inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 3-coordinate geometry to two equivalent Na1+ and one W+4.50+ atom. In the second Br1- site, Br1- is bonded in a distorted L-shaped geometry to two W+4.50+ atoms. In the third Br1- site, Br1- is bonded in a 3-coordinate geometry to two equivalent Na1+ and one W+4.50+ atom. In the fourth Br1- site, Br1- is bonded in a 3-coordinate geometry to two equivalent Na1+ and one W+4.50+ atom. In the fifth Br1- site, Br1- is bonded in a 3-coordinate geometry to two equivalent Na1+ and one W+4.50+ atom. In the sixth Br1- site, Br1- is bonded in a distorted L-shaped geometry to two W+4.50+ atoms.},
doi = {10.17188/1269664},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}

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