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Title: Materials Data on BeAl2O4 by Materials Project

Abstract

BeAl2O4 is Spinel-like structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Be2+ is bonded to four O2- atoms to form BeO4 tetrahedra that share corners with six AlO6 octahedra and edges with three AlO6 octahedra. The corner-sharing octahedra tilt angles range from 59–63°. There are a spread of Be–O bond distances ranging from 1.58–1.70 Å. There are two inequivalent Al3+ sites. In the first Al3+ site, Al3+ is bonded to six O2- atoms to form AlO6 octahedra that share corners with eight AlO6 octahedra, corners with four equivalent BeO4 tetrahedra, edges with two equivalent AlO6 octahedra, and an edgeedge with one BeO4 tetrahedra. The corner-sharing octahedra tilt angles range from 50–57°. There are a spread of Al–O bond distances ranging from 1.88–2.03 Å. In the second Al3+ site, Al3+ is bonded to six O2- atoms to form AlO6 octahedra that share corners with four equivalent AlO6 octahedra, corners with two equivalent BeO4 tetrahedra, edges with four AlO6 octahedra, and edges with two equivalent BeO4 tetrahedra. The corner-sharing octahedra tilt angles range from 52–57°. There are a spread of Al–O bond distances ranging from 1.89–1.93 Å. There are three inequivalent O2- sites. In the first O2-more » site, O2- is bonded in a rectangular see-saw-like geometry to one Be2+ and three Al3+ atoms. In the second O2- site, O2- is bonded to one Be2+ and three Al3+ atoms to form distorted corner-sharing OBeAl3 tetrahedra. In the third O2- site, O2- is bonded in a rectangular see-saw-like geometry to one Be2+ and three Al3+ atoms.« less

Publication Date:
Other Number(s):
mp-3081
DOE Contract Number:  
AC02-05CH11231; EDCBEE
Product Type:
Dataset
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)
Subject:
36 MATERIALS SCIENCE
Keywords:
crystal structure; BeAl2O4; Al-Be-O
OSTI Identifier:
1205172
DOI:
10.17188/1205172

Citation Formats

The Materials Project. Materials Data on BeAl2O4 by Materials Project. United States: N. p., 2017. Web. doi:10.17188/1205172.
The Materials Project. Materials Data on BeAl2O4 by Materials Project. United States. doi:10.17188/1205172.
The Materials Project. 2017. "Materials Data on BeAl2O4 by Materials Project". United States. doi:10.17188/1205172. https://www.osti.gov/servlets/purl/1205172. Pub date:Wed Jun 07 00:00:00 EDT 2017
@article{osti_1205172,
title = {Materials Data on BeAl2O4 by Materials Project},
author = {The Materials Project},
abstractNote = {BeAl2O4 is Spinel-like structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Be2+ is bonded to four O2- atoms to form BeO4 tetrahedra that share corners with six AlO6 octahedra and edges with three AlO6 octahedra. The corner-sharing octahedra tilt angles range from 59–63°. There are a spread of Be–O bond distances ranging from 1.58–1.70 Å. There are two inequivalent Al3+ sites. In the first Al3+ site, Al3+ is bonded to six O2- atoms to form AlO6 octahedra that share corners with eight AlO6 octahedra, corners with four equivalent BeO4 tetrahedra, edges with two equivalent AlO6 octahedra, and an edgeedge with one BeO4 tetrahedra. The corner-sharing octahedra tilt angles range from 50–57°. There are a spread of Al–O bond distances ranging from 1.88–2.03 Å. In the second Al3+ site, Al3+ is bonded to six O2- atoms to form AlO6 octahedra that share corners with four equivalent AlO6 octahedra, corners with two equivalent BeO4 tetrahedra, edges with four AlO6 octahedra, and edges with two equivalent BeO4 tetrahedra. The corner-sharing octahedra tilt angles range from 52–57°. There are a spread of Al–O bond distances ranging from 1.89–1.93 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a rectangular see-saw-like geometry to one Be2+ and three Al3+ atoms. In the second O2- site, O2- is bonded to one Be2+ and three Al3+ atoms to form distorted corner-sharing OBeAl3 tetrahedra. In the third O2- site, O2- is bonded in a rectangular see-saw-like geometry to one Be2+ and three Al3+ atoms.},
doi = {10.17188/1205172},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {6}
}

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