U.S. Department of EnergyOffice of Scientific and Technical Information
Materials Data on Ba2CaTl2(CuO3)4 by Materials Project
Abstract
Ca(CuO2)2(BaCuTlO4)2 crystallizes in the tetragonal I4/mmm space group. The structure is two-dimensional and consists of two BaCuTlO4 sheets oriented in the (0, 0, 1) direction and two Ca(CuO2)2 sheets oriented in the (0, 0, 1) direction. In each BaCuTlO4 sheet, Ba2+ is bonded in a 8-coordinate geometry to nine O2- atoms. There are a spread of Ba–O bond distances ranging from 2.69–3.35 Å. Cu3+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Cu–O bond lengths are 1.89 Å. Tl3+ is bonded to six O2- atoms to form a mixture of distorted edge and corner-sharing TlO6 octahedra. The corner-sharing octahedral tilt angles are 13°. There are a spread of Tl–O bond distances ranging from 2.03–2.63 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Ba2+ and two equivalent Cu3+ atoms. In the second O2- site, O2- is bonded in a 5-coordinate geometry to one Ba2+ and five equivalent Tl3+ atoms. In the third O2- site, O2- is bonded in a 1-coordinate geometry to four equivalent Ba2+ and one Tl3+ atom. In each Ca(CuO2)2 sheet, Ca2+ is bonded in a body-centered cubic geometry tomore »
- Authors:
- Publication Date:
- Other Number(s):
- mvc-13047
- 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; Ba2CaTl2(CuO3)4; Ba-Ca-Cu-O-Tl
- OSTI Identifier:
- 1318719
- DOI:
- https://doi.org/10.17188/1318719
Citation Formats
The Materials Project. Materials Data on Ba2CaTl2(CuO3)4 by Materials Project. United States: N. p., 2013.
Web. doi:10.17188/1318719.
The Materials Project. Materials Data on Ba2CaTl2(CuO3)4 by Materials Project. United States. doi:https://doi.org/10.17188/1318719
The Materials Project. 2013.
"Materials Data on Ba2CaTl2(CuO3)4 by Materials Project". United States. doi:https://doi.org/10.17188/1318719. https://www.osti.gov/servlets/purl/1318719. Pub date:Mon Nov 18 00:00:00 EST 2013
@article{osti_1318719,
title = {Materials Data on Ba2CaTl2(CuO3)4 by Materials Project},
author = {The Materials Project},
abstractNote = {Ca(CuO2)2(BaCuTlO4)2 crystallizes in the tetragonal I4/mmm space group. The structure is two-dimensional and consists of two BaCuTlO4 sheets oriented in the (0, 0, 1) direction and two Ca(CuO2)2 sheets oriented in the (0, 0, 1) direction. In each BaCuTlO4 sheet, Ba2+ is bonded in a 8-coordinate geometry to nine O2- atoms. There are a spread of Ba–O bond distances ranging from 2.69–3.35 Å. Cu3+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Cu–O bond lengths are 1.89 Å. Tl3+ is bonded to six O2- atoms to form a mixture of distorted edge and corner-sharing TlO6 octahedra. The corner-sharing octahedral tilt angles are 13°. There are a spread of Tl–O bond distances ranging from 2.03–2.63 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Ba2+ and two equivalent Cu3+ atoms. In the second O2- site, O2- is bonded in a 5-coordinate geometry to one Ba2+ and five equivalent Tl3+ atoms. In the third O2- site, O2- is bonded in a 1-coordinate geometry to four equivalent Ba2+ and one Tl3+ atom. In each Ca(CuO2)2 sheet, Ca2+ is bonded in a body-centered cubic geometry to eight equivalent O2- atoms. All Ca–O bond lengths are 2.40 Å. Cu3+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Cu–O bond lengths are 1.89 Å. O2- is bonded to two equivalent Ca2+ and two equivalent Cu3+ atoms to form a mixture of distorted edge and corner-sharing OCa2Cu2 trigonal pyramids.},
doi = {10.17188/1318719},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {11}
}