U.S. Department of EnergyOffice of Scientific and Technical Information
Materials Data on SrAl2(SiO4)2 by Materials Project
Abstract
SrAl2Si2O8 crystallizes in the trigonal P-3c1 space group. The structure is three-dimensional. Sr2+ is bonded to six equivalent O2- atoms to form SrO6 octahedra that share corners with six equivalent AlO4 tetrahedra and corners with six equivalent SiO4 tetrahedra. All Sr–O bond lengths are 2.63 Å. Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with three equivalent SrO6 octahedra and corners with four equivalent SiO4 tetrahedra. The corner-sharing octahedral tilt angles are 64°. There is one shorter (1.71 Å) and three longer (1.78 Å) Al–O bond length. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with three equivalent SrO6 octahedra and corners with four equivalent AlO4 tetrahedra. The corner-sharing octahedral tilt angles are 62°. There is one shorter (1.60 Å) and three longer (1.65 Å) Si–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a linear geometry to one Al3+ and one Si4+ atom. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to one Sr2+, one Al3+, and one Si4+ atom.
- Authors:
- Publication Date:
- Other Number(s):
- mp-1218484
- 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; SrAl2(SiO4)2; Al-O-Si-Sr
- OSTI Identifier:
- 1652221
- DOI:
- https://doi.org/10.17188/1652221
Citation Formats
The Materials Project. Materials Data on SrAl2(SiO4)2 by Materials Project. United States: N. p., 2019.
Web. doi:10.17188/1652221.
The Materials Project. Materials Data on SrAl2(SiO4)2 by Materials Project. United States. doi:https://doi.org/10.17188/1652221
The Materials Project. 2019.
"Materials Data on SrAl2(SiO4)2 by Materials Project". United States. doi:https://doi.org/10.17188/1652221. https://www.osti.gov/servlets/purl/1652221. Pub date:Sat Jan 12 00:00:00 EST 2019
@article{osti_1652221,
title = {Materials Data on SrAl2(SiO4)2 by Materials Project},
author = {The Materials Project},
abstractNote = {SrAl2Si2O8 crystallizes in the trigonal P-3c1 space group. The structure is three-dimensional. Sr2+ is bonded to six equivalent O2- atoms to form SrO6 octahedra that share corners with six equivalent AlO4 tetrahedra and corners with six equivalent SiO4 tetrahedra. All Sr–O bond lengths are 2.63 Å. Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share corners with three equivalent SrO6 octahedra and corners with four equivalent SiO4 tetrahedra. The corner-sharing octahedral tilt angles are 64°. There is one shorter (1.71 Å) and three longer (1.78 Å) Al–O bond length. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with three equivalent SrO6 octahedra and corners with four equivalent AlO4 tetrahedra. The corner-sharing octahedral tilt angles are 62°. There is one shorter (1.60 Å) and three longer (1.65 Å) Si–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a linear geometry to one Al3+ and one Si4+ atom. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to one Sr2+, one Al3+, and one Si4+ atom.},
doi = {10.17188/1652221},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {1}
}