U.S. Department of EnergyOffice of Scientific and Technical Information
Materials Data on Eu2Ge(BO4)2 by Materials Project
Abstract
Eu2GeB2O8 crystallizes in the orthorhombic Pbcn space group. The structure is three-dimensional. Eu3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Eu–O bond distances ranging from 2.35–2.59 Å. B3+ is bonded to four O2- atoms to form BO4 tetrahedra that share a cornercorner with one GeO4 tetrahedra and corners with two equivalent BO4 tetrahedra. There are a spread of B–O bond distances ranging from 1.46–1.51 Å. Ge4+ is bonded to four O2- atoms to form GeO4 tetrahedra that share corners with two equivalent BO4 tetrahedra. There is two shorter (1.75 Å) and two longer (1.80 Å) Ge–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Eu3+ and two equivalent B3+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Eu3+ and one Ge4+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to three equivalent Eu3+ and one B3+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Eu3+, one B3+, and one Ge4+ atom.
- Authors:
- Publication Date:
- Other Number(s):
- mp-1019739
- 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; Eu2Ge(BO4)2; B-Eu-Ge-O
- OSTI Identifier:
- 1350575
- DOI:
- https://doi.org/10.17188/1350575
Citation Formats
The Materials Project. Materials Data on Eu2Ge(BO4)2 by Materials Project. United States: N. p., 2020.
Web. doi:10.17188/1350575.
The Materials Project. Materials Data on Eu2Ge(BO4)2 by Materials Project. United States. doi:https://doi.org/10.17188/1350575
The Materials Project. 2020.
"Materials Data on Eu2Ge(BO4)2 by Materials Project". United States. doi:https://doi.org/10.17188/1350575. https://www.osti.gov/servlets/purl/1350575. Pub date:Thu Apr 30 00:00:00 EDT 2020
@article{osti_1350575,
title = {Materials Data on Eu2Ge(BO4)2 by Materials Project},
author = {The Materials Project},
abstractNote = {Eu2GeB2O8 crystallizes in the orthorhombic Pbcn space group. The structure is three-dimensional. Eu3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Eu–O bond distances ranging from 2.35–2.59 Å. B3+ is bonded to four O2- atoms to form BO4 tetrahedra that share a cornercorner with one GeO4 tetrahedra and corners with two equivalent BO4 tetrahedra. There are a spread of B–O bond distances ranging from 1.46–1.51 Å. Ge4+ is bonded to four O2- atoms to form GeO4 tetrahedra that share corners with two equivalent BO4 tetrahedra. There is two shorter (1.75 Å) and two longer (1.80 Å) Ge–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Eu3+ and two equivalent B3+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Eu3+ and one Ge4+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to three equivalent Eu3+ and one B3+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Eu3+, one B3+, and one Ge4+ atom.},
doi = {10.17188/1350575},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Apr 30 00:00:00 EDT 2020},
month = {Thu Apr 30 00:00:00 EDT 2020}
}