U.S. Department of EnergyOffice of Scientific and Technical Information
Materials Data on Sr3CaIr2O9 by Materials Project
Abstract
Sr3CaIr2O9 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are three inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.52–2.88 Å. In the second Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.55–2.88 Å. In the third Sr2+ site, Sr2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.52–2.90 Å. There are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded to six O2- atoms to form CaO6 octahedra that share corners with six equivalent IrO6 octahedra. The corner-sharing octahedra tilt angles range from 21–24°. There are four shorter (2.26 Å) and two longer (2.27 Å) Ca–O bond lengths. In the second Ca2+ site, Ca2+ is bonded to six O2- atoms to form CaO6 octahedra that share corners with six equivalent IrO6 octahedra. The corner-sharing octahedra tilt angles range from 20–24°. There are a spread of Ca–O bond distances rangingmore »
- Authors:
- Publication Date:
- Other Number(s):
- mp-1195131
- 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; Sr3CaIr2O9; Ca-Ir-O-Sr
- OSTI Identifier:
- 1745952
- DOI:
- https://doi.org/10.17188/1745952
Citation Formats
The Materials Project. Materials Data on Sr3CaIr2O9 by Materials Project. United States: N. p., 2020.
Web. doi:10.17188/1745952.
The Materials Project. Materials Data on Sr3CaIr2O9 by Materials Project. United States. doi:https://doi.org/10.17188/1745952
The Materials Project. 2020.
"Materials Data on Sr3CaIr2O9 by Materials Project". United States. doi:https://doi.org/10.17188/1745952. https://www.osti.gov/servlets/purl/1745952. Pub date:Fri May 01 00:00:00 EDT 2020
@article{osti_1745952,
title = {Materials Data on Sr3CaIr2O9 by Materials Project},
author = {The Materials Project},
abstractNote = {Sr3CaIr2O9 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are three inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.52–2.88 Å. In the second Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.55–2.88 Å. In the third Sr2+ site, Sr2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.52–2.90 Å. There are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded to six O2- atoms to form CaO6 octahedra that share corners with six equivalent IrO6 octahedra. The corner-sharing octahedra tilt angles range from 21–24°. There are four shorter (2.26 Å) and two longer (2.27 Å) Ca–O bond lengths. In the second Ca2+ site, Ca2+ is bonded to six O2- atoms to form CaO6 octahedra that share corners with six equivalent IrO6 octahedra. The corner-sharing octahedra tilt angles range from 20–24°. There are a spread of Ca–O bond distances ranging from 2.24–2.28 Å. There are two inequivalent Ir5+ sites. In the first Ir5+ site, Ir5+ is bonded to six O2- atoms to form IrO6 octahedra that share corners with three equivalent CaO6 octahedra and corners with three equivalent IrO6 octahedra. The corner-sharing octahedra tilt angles range from 21–26°. There are a spread of Ir–O bond distances ranging from 1.94–2.06 Å. In the second Ir5+ site, Ir5+ is bonded to six O2- atoms to form IrO6 octahedra that share corners with three equivalent CaO6 octahedra and corners with three equivalent IrO6 octahedra. The corner-sharing octahedra tilt angles range from 20–26°. There are a spread of Ir–O bond distances ranging from 1.94–2.07 Å. There are nine inequivalent O2- sites. In the first O2- site, O2- is bonded in a 5-coordinate geometry to three Sr2+, one Ca2+, and one Ir5+ atom. In the second O2- site, O2- is bonded in a 5-coordinate geometry to three equivalent Sr2+, one Ca2+, and one Ir5+ atom. In the third O2- site, O2- is bonded in a 5-coordinate geometry to three Sr2+, one Ca2+, and one Ir5+ atom. In the fourth O2- site, O2- is bonded in a 5-coordinate geometry to three Sr2+ and two Ir5+ atoms. In the fifth O2- site, O2- is bonded in a 5-coordinate geometry to three Sr2+ and two Ir5+ atoms. In the sixth O2- site, O2- is bonded in a 5-coordinate geometry to three Sr2+, one Ca2+, and one Ir5+ atom. In the seventh O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Sr2+, one Ca2+, and one Ir5+ atom. In the eighth O2- site, O2- is bonded in a 4-coordinate geometry to two Sr2+ and two Ir5+ atoms. In the ninth O2- site, O2- is bonded in a 4-coordinate geometry to two Sr2+, one Ca2+, and one Ir5+ atom.},
doi = {10.17188/1745952},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri May 01 00:00:00 EDT 2020},
month = {Fri May 01 00:00:00 EDT 2020}
}