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Title: Materials Data on Ba2Ti2O5 by Materials Project

Abstract

Ba2Ti2O5 crystallizes in the orthorhombic Ima2 space group. The structure is three-dimensional. Ba2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Ba–O bond distances ranging from 2.78–3.05 Å. There are two inequivalent Ti3+ sites. In the first Ti3+ site, Ti3+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with four equivalent TiO6 octahedra and corners with two equivalent TiO4 trigonal pyramids. The corner-sharing octahedral tilt angles are 3°. There are four shorter (2.06 Å) and two longer (2.10 Å) Ti–O bond lengths. In the second Ti3+ site, Ti3+ is bonded to four O2- atoms to form TiO4 trigonal pyramids that share corners with two equivalent TiO6 octahedra and corners with two equivalent TiO4 trigonal pyramids. The corner-sharing octahedral tilt angles are 13°. There is two shorter (1.91 Å) and two longer (1.95 Å) Ti–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to four equivalent Ba2+ and two equivalent Ti3+ atoms to form a mixture of distorted face, edge, and corner-sharing OBa4Ti2 octahedra. The corner-sharing octahedral tilt angles are 0°. In the second O2- site, O2- is bonded in amore » 2-coordinate geometry to four equivalent Ba2+ and two Ti3+ atoms. In the third O2- site, O2- is bonded in a distorted linear geometry to four equivalent Ba2+ and two equivalent Ti3+ atoms.« less

Authors:
Publication Date:
Other Number(s):
mp-1076521
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; Ba2Ti2O5; Ba-O-Ti
OSTI Identifier:
1475690
DOI:
https://doi.org/10.17188/1475690

Citation Formats

The Materials Project. Materials Data on Ba2Ti2O5 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1475690.
The Materials Project. Materials Data on Ba2Ti2O5 by Materials Project. United States. doi:https://doi.org/10.17188/1475690
The Materials Project. 2020. "Materials Data on Ba2Ti2O5 by Materials Project". United States. doi:https://doi.org/10.17188/1475690. https://www.osti.gov/servlets/purl/1475690. Pub date:Sat May 02 00:00:00 EDT 2020
@article{osti_1475690,
title = {Materials Data on Ba2Ti2O5 by Materials Project},
author = {The Materials Project},
abstractNote = {Ba2Ti2O5 crystallizes in the orthorhombic Ima2 space group. The structure is three-dimensional. Ba2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Ba–O bond distances ranging from 2.78–3.05 Å. There are two inequivalent Ti3+ sites. In the first Ti3+ site, Ti3+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with four equivalent TiO6 octahedra and corners with two equivalent TiO4 trigonal pyramids. The corner-sharing octahedral tilt angles are 3°. There are four shorter (2.06 Å) and two longer (2.10 Å) Ti–O bond lengths. In the second Ti3+ site, Ti3+ is bonded to four O2- atoms to form TiO4 trigonal pyramids that share corners with two equivalent TiO6 octahedra and corners with two equivalent TiO4 trigonal pyramids. The corner-sharing octahedral tilt angles are 13°. There is two shorter (1.91 Å) and two longer (1.95 Å) Ti–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to four equivalent Ba2+ and two equivalent Ti3+ atoms to form a mixture of distorted face, edge, and corner-sharing OBa4Ti2 octahedra. The corner-sharing octahedral tilt angles are 0°. In the second O2- site, O2- is bonded in a 2-coordinate geometry to four equivalent Ba2+ and two Ti3+ atoms. In the third O2- site, O2- is bonded in a distorted linear geometry to four equivalent Ba2+ and two equivalent Ti3+ atoms.},
doi = {10.17188/1475690},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat May 02 00:00:00 EDT 2020},
month = {Sat May 02 00:00:00 EDT 2020}
}