U.S. Department of EnergyOffice of Scientific and Technical Information
Materials Data on EuAlGe2O7 by Materials Project
Abstract
EuAlGe2O7 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Eu3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Eu–O bond distances ranging from 2.34–2.82 Å. Al3+ is bonded to five O2- atoms to form AlO5 trigonal bipyramids that share corners with five GeO4 tetrahedra. There are a spread of Al–O bond distances ranging from 1.80–1.95 Å. There are two inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded to four O2- atoms to form GeO4 tetrahedra that share a cornercorner with one GeO4 tetrahedra and corners with two equivalent AlO5 trigonal bipyramids. There are a spread of Ge–O bond distances ranging from 1.73–1.79 Å. In the second Ge4+ site, Ge4+ is bonded to four O2- atoms to form GeO4 tetrahedra that share a cornercorner with one GeO4 tetrahedra and corners with three equivalent AlO5 trigonal bipyramids. There are a spread of Ge–O bond distances ranging from 1.76–1.82 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one Eu3+, one Al3+, and one Ge4+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry tomore »
- Publication Date:
- Other Number(s):
- mp-1212768
- DOE Contract Number:
- AC02-05CH11231
- Research Org.:
- LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Collaborations:
- The Materials Project; MIT; UC Berkeley; Duke; U Louvain
- Subject:
- 36 MATERIALS SCIENCE; Al-Eu-Ge-O; EuAlGe2O7; crystal structure
- OSTI Identifier:
- 1699140
- DOI:
- https://doi.org/10.17188/1699140
Citation Formats
Materials Data on EuAlGe2O7 by Materials Project. United States: N. p., 2020.
Web. doi:10.17188/1699140.
Materials Data on EuAlGe2O7 by Materials Project. United States. doi:https://doi.org/10.17188/1699140
2020.
"Materials Data on EuAlGe2O7 by Materials Project". United States. doi:https://doi.org/10.17188/1699140. https://www.osti.gov/servlets/purl/1699140. Pub date:Thu Apr 30 00:00:00 EDT 2020
@article{osti_1699140,
title = {Materials Data on EuAlGe2O7 by Materials Project},
abstractNote = {EuAlGe2O7 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Eu3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Eu–O bond distances ranging from 2.34–2.82 Å. Al3+ is bonded to five O2- atoms to form AlO5 trigonal bipyramids that share corners with five GeO4 tetrahedra. There are a spread of Al–O bond distances ranging from 1.80–1.95 Å. There are two inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded to four O2- atoms to form GeO4 tetrahedra that share a cornercorner with one GeO4 tetrahedra and corners with two equivalent AlO5 trigonal bipyramids. There are a spread of Ge–O bond distances ranging from 1.73–1.79 Å. In the second Ge4+ site, Ge4+ is bonded to four O2- atoms to form GeO4 tetrahedra that share a cornercorner with one GeO4 tetrahedra and corners with three equivalent AlO5 trigonal bipyramids. There are a spread of Ge–O bond distances ranging from 1.76–1.82 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one Eu3+, one Al3+, and one Ge4+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Eu3+, one Al3+, and one Ge4+ atom. In the third O2- site, O2- is bonded in a 2-coordinate geometry to one Eu3+, one Al3+, and one Ge4+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Eu3+, one Al3+, and one Ge4+ atom. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Eu3+ and one Ge4+ atom. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to one Eu3+, one Al3+, and one Ge4+ atom. In the seventh O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Eu3+ and two Ge4+ atoms.},
doi = {10.17188/1699140},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {4}
}