DOE Data Explorer title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Materials Data on Sm2Be2SiO7 by Materials Project

Abstract

Be2Sm2SiO7 crystallizes in the tetragonal P-42_1m space group. The structure is three-dimensional. Be2+ is bonded to four O2- atoms to form BeO4 tetrahedra that share a cornercorner with one BeO4 tetrahedra and corners with two equivalent SiO4 tetrahedra. There are a spread of Be–O bond distances ranging from 1.57–1.73 Å. Sm3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sm–O bond distances ranging from 2.33–2.68 Å. Si4+ is bonded to four equivalent O2- atoms to form SiO4 tetrahedra that share corners with four equivalent BeO4 tetrahedra. All Si–O bond lengths are 1.65 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Be2+ and two equivalent Sm3+ atoms. In the second O2- site, O2- is bonded in a 4-coordinate geometry to one Be2+ and three equivalent Sm3+ atoms. In the third O2- site, O2- is bonded in a 2-coordinate geometry to one Be2+, two equivalent Sm3+, and one Si4+ atom.

Authors:
Publication Date:
Other Number(s):
mp-1208884
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; Sm2Be2SiO7; Be-O-Si-Sm
OSTI Identifier:
1747950
DOI:
https://doi.org/10.17188/1747950

Citation Formats

The Materials Project. Materials Data on Sm2Be2SiO7 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1747950.
The Materials Project. Materials Data on Sm2Be2SiO7 by Materials Project. United States. doi:https://doi.org/10.17188/1747950
The Materials Project. 2020. "Materials Data on Sm2Be2SiO7 by Materials Project". United States. doi:https://doi.org/10.17188/1747950. https://www.osti.gov/servlets/purl/1747950. Pub date:Thu Apr 30 00:00:00 EDT 2020
@article{osti_1747950,
title = {Materials Data on Sm2Be2SiO7 by Materials Project},
author = {The Materials Project},
abstractNote = {Be2Sm2SiO7 crystallizes in the tetragonal P-42_1m space group. The structure is three-dimensional. Be2+ is bonded to four O2- atoms to form BeO4 tetrahedra that share a cornercorner with one BeO4 tetrahedra and corners with two equivalent SiO4 tetrahedra. There are a spread of Be–O bond distances ranging from 1.57–1.73 Å. Sm3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sm–O bond distances ranging from 2.33–2.68 Å. Si4+ is bonded to four equivalent O2- atoms to form SiO4 tetrahedra that share corners with four equivalent BeO4 tetrahedra. All Si–O bond lengths are 1.65 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Be2+ and two equivalent Sm3+ atoms. In the second O2- site, O2- is bonded in a 4-coordinate geometry to one Be2+ and three equivalent Sm3+ atoms. In the third O2- site, O2- is bonded in a 2-coordinate geometry to one Be2+, two equivalent Sm3+, and one Si4+ atom.},
doi = {10.17188/1747950},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {4}
}