U.S. Department of EnergyOffice of Scientific and Technical Information
Materials Data on Sm2Th8O19 by Materials Project
Abstract
Th8Sm2O19 is alpha bismuth trifluoride-derived structured and crystallizes in the tetragonal P-4m2 space group. The structure is three-dimensional. there are four inequivalent Th4+ sites. In the first Th4+ site, Th4+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Th–O bond distances ranging from 2.36–2.45 Å. In the second Th4+ site, Th4+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Th–O bond distances ranging from 2.39–2.42 Å. In the third Th4+ site, Th4+ is bonded in a body-centered cubic geometry to eight O2- atoms. All Th–O bond lengths are 2.40 Å. In the fourth Th4+ site, Th4+ is bonded in a body-centered cubic geometry to eight O2- atoms. All Th–O bond lengths are 2.40 Å. Sm3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Sm–O bond distances ranging from 2.26–2.48 Å. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded to four Th4+ atoms to form a mixture of corner and edge-sharing OTh4 tetrahedra. In the second O2- site, O2- is bonded to four equivalent Th4+ atoms to form a mixture of cornermore »
- Authors:
- Publication Date:
- Other Number(s):
- mp-676629
- 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; Sm2Th8O19; O-Sm-Th
- OSTI Identifier:
- 1283120
- DOI:
- https://doi.org/10.17188/1283120
Citation Formats
The Materials Project. Materials Data on Sm2Th8O19 by Materials Project. United States: N. p., 2020.
Web. doi:10.17188/1283120.
The Materials Project. Materials Data on Sm2Th8O19 by Materials Project. United States. doi:https://doi.org/10.17188/1283120
The Materials Project. 2020.
"Materials Data on Sm2Th8O19 by Materials Project". United States. doi:https://doi.org/10.17188/1283120. https://www.osti.gov/servlets/purl/1283120. Pub date:Wed Jul 15 00:00:00 EDT 2020
@article{osti_1283120,
title = {Materials Data on Sm2Th8O19 by Materials Project},
author = {The Materials Project},
abstractNote = {Th8Sm2O19 is alpha bismuth trifluoride-derived structured and crystallizes in the tetragonal P-4m2 space group. The structure is three-dimensional. there are four inequivalent Th4+ sites. In the first Th4+ site, Th4+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Th–O bond distances ranging from 2.36–2.45 Å. In the second Th4+ site, Th4+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Th–O bond distances ranging from 2.39–2.42 Å. In the third Th4+ site, Th4+ is bonded in a body-centered cubic geometry to eight O2- atoms. All Th–O bond lengths are 2.40 Å. In the fourth Th4+ site, Th4+ is bonded in a body-centered cubic geometry to eight O2- atoms. All Th–O bond lengths are 2.40 Å. Sm3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Sm–O bond distances ranging from 2.26–2.48 Å. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded to four Th4+ atoms to form a mixture of corner and edge-sharing OTh4 tetrahedra. In the second O2- site, O2- is bonded to four equivalent Th4+ atoms to form a mixture of corner and edge-sharing OTh4 tetrahedra. In the third O2- site, O2- is bonded to four Th4+ atoms to form a mixture of corner and edge-sharing OTh4 tetrahedra. In the fourth O2- site, O2- is bonded to four Th4+ atoms to form OTh4 tetrahedra that share corners with sixteen OTh4 tetrahedra and edges with six OSm2Th2 tetrahedra. In the fifth O2- site, O2- is bonded to two equivalent Th4+ and two equivalent Sm3+ atoms to form OSm2Th2 tetrahedra that share corners with twelve OSm4 tetrahedra and edges with six OSm2Th2 tetrahedra. In the sixth O2- site, O2- is bonded to two equivalent Th4+ and two equivalent Sm3+ atoms to form OSm2Th2 tetrahedra that share corners with fourteen OSm2Th2 tetrahedra and edges with five OTh4 tetrahedra. In the seventh O2- site, O2- is bonded to four equivalent Sm3+ atoms to form a mixture of corner and edge-sharing OSm4 tetrahedra. In the eighth O2- site, O2- is bonded to four Th4+ atoms to form a mixture of corner and edge-sharing OTh4 tetrahedra. In the ninth O2- site, O2- is bonded to four Th4+ atoms to form a mixture of corner and edge-sharing OTh4 tetrahedra. In the tenth O2- site, O2- is bonded to four Th4+ atoms to form a mixture of corner and edge-sharing OTh4 tetrahedra.},
doi = {10.17188/1283120},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jul 15 00:00:00 EDT 2020},
month = {Wed Jul 15 00:00:00 EDT 2020}
}