U.S. Department of EnergyOffice of Scientific and Technical Information
Materials Data on Sr4Ca(FeO2)5 by Materials Project
Abstract
Sr4Ca(FeO2)5 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. there are two inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are four shorter (2.66 Å) and four longer (2.68 Å) Sr–O bond lengths. In the second Sr2+ site, Sr2+ is bonded in a body-centered cubic geometry to eight O2- atoms. All Sr–O bond lengths are 2.66 Å. Ca2+ is bonded in a body-centered cubic geometry to eight equivalent O2- atoms. All Ca–O bond lengths are 2.62 Å. There are three inequivalent Fe2+ sites. In the first Fe2+ site, Fe2+ is bonded in a rectangular see-saw-like geometry to four O2- atoms. There are two shorter (2.02 Å) and two longer (2.04 Å) Fe–O bond lengths. In the second Fe2+ site, Fe2+ is bonded in a rectangular see-saw-like geometry to four O2- atoms. All Fe–O bond lengths are 2.03 Å. In the third Fe2+ site, Fe2+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Fe–O bond lengths are 2.03 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to four Sr2+ and two Fe2+ atomsmore »
- Authors:
- Publication Date:
- Other Number(s):
- mp-1218462
- 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; Sr4Ca(FeO2)5; Ca-Fe-O-Sr
- OSTI Identifier:
- 1740526
- DOI:
- https://doi.org/10.17188/1740526
Citation Formats
The Materials Project. Materials Data on Sr4Ca(FeO2)5 by Materials Project. United States: N. p., 2020.
Web. doi:10.17188/1740526.
The Materials Project. Materials Data on Sr4Ca(FeO2)5 by Materials Project. United States. doi:https://doi.org/10.17188/1740526
The Materials Project. 2020.
"Materials Data on Sr4Ca(FeO2)5 by Materials Project". United States. doi:https://doi.org/10.17188/1740526. https://www.osti.gov/servlets/purl/1740526. Pub date:Thu Jun 04 00:00:00 EDT 2020
@article{osti_1740526,
title = {Materials Data on Sr4Ca(FeO2)5 by Materials Project},
author = {The Materials Project},
abstractNote = {Sr4Ca(FeO2)5 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. there are two inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are four shorter (2.66 Å) and four longer (2.68 Å) Sr–O bond lengths. In the second Sr2+ site, Sr2+ is bonded in a body-centered cubic geometry to eight O2- atoms. All Sr–O bond lengths are 2.66 Å. Ca2+ is bonded in a body-centered cubic geometry to eight equivalent O2- atoms. All Ca–O bond lengths are 2.62 Å. There are three inequivalent Fe2+ sites. In the first Fe2+ site, Fe2+ is bonded in a rectangular see-saw-like geometry to four O2- atoms. There are two shorter (2.02 Å) and two longer (2.04 Å) Fe–O bond lengths. In the second Fe2+ site, Fe2+ is bonded in a rectangular see-saw-like geometry to four O2- atoms. All Fe–O bond lengths are 2.03 Å. In the third Fe2+ site, Fe2+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Fe–O bond lengths are 2.03 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to four Sr2+ and two Fe2+ atoms to form a mixture of edge, corner, and face-sharing OSr4Fe2 octahedra. The corner-sharing octahedra tilt angles range from 0–66°. In the second O2- site, O2- is bonded to four equivalent Sr2+ and two equivalent Fe2+ atoms to form a mixture of edge, corner, and face-sharing OSr4Fe2 octahedra. The corner-sharing octahedra tilt angles range from 0–66°. In the third O2- site, O2- is bonded to two equivalent Sr2+, two equivalent Ca2+, and two Fe2+ atoms to form a mixture of distorted edge, corner, and face-sharing OSr2Ca2Fe2 octahedra. The corner-sharing octahedra tilt angles range from 0–66°.},
doi = {10.17188/1740526},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {6}
}