U.S. Department of EnergyOffice of Scientific and Technical Information
Materials Data on Eu4As2O by Materials Project
Abstract
Eu4As2O is (La,Ba)CuO4 structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Eu2+ sites. In the first Eu2+ site, Eu2+ is bonded in a distorted linear geometry to four equivalent As3- and two equivalent O2- atoms. All Eu–As bond lengths are 3.22 Å. Both Eu–O bond lengths are 2.38 Å. In the second Eu2+ site, Eu2+ is bonded in a 6-coordinate geometry to five equivalent As3- and one O2- atom. There are one shorter (3.05 Å) and four longer (3.42 Å) Eu–As bond lengths. The Eu–O bond length is 2.78 Å. As3- is bonded in a 9-coordinate geometry to nine Eu2+ atoms. O2- is bonded to six Eu2+ atoms to form corner-sharing OEu6 octahedra. The corner-sharing octahedral tilt angles are 0°.
- Authors:
- Publication Date:
- Other Number(s):
- mp-1077953
- 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; Eu4As2O; As-Eu-O
- OSTI Identifier:
- 1688249
- DOI:
- https://doi.org/10.17188/1688249
Citation Formats
The Materials Project. Materials Data on Eu4As2O by Materials Project. United States: N. p., 2020.
Web. doi:10.17188/1688249.
The Materials Project. Materials Data on Eu4As2O by Materials Project. United States. doi:https://doi.org/10.17188/1688249
The Materials Project. 2020.
"Materials Data on Eu4As2O by Materials Project". United States. doi:https://doi.org/10.17188/1688249. https://www.osti.gov/servlets/purl/1688249. Pub date:Sat May 02 00:00:00 EDT 2020
@article{osti_1688249,
title = {Materials Data on Eu4As2O by Materials Project},
author = {The Materials Project},
abstractNote = {Eu4As2O is (La,Ba)CuO4 structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Eu2+ sites. In the first Eu2+ site, Eu2+ is bonded in a distorted linear geometry to four equivalent As3- and two equivalent O2- atoms. All Eu–As bond lengths are 3.22 Å. Both Eu–O bond lengths are 2.38 Å. In the second Eu2+ site, Eu2+ is bonded in a 6-coordinate geometry to five equivalent As3- and one O2- atom. There are one shorter (3.05 Å) and four longer (3.42 Å) Eu–As bond lengths. The Eu–O bond length is 2.78 Å. As3- is bonded in a 9-coordinate geometry to nine Eu2+ atoms. O2- is bonded to six Eu2+ atoms to form corner-sharing OEu6 octahedra. The corner-sharing octahedral tilt angles are 0°.},
doi = {10.17188/1688249},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {5}
}