U.S. Department of EnergyOffice of Scientific and Technical Information
Materials Data on SrGe12Pb2O27 by Materials Project
Abstract
SrPb2Ge12O27 crystallizes in the monoclinic C2 space group. The structure is three-dimensional. Sr2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Sr–O bond distances ranging from 2.65–3.22 Å. Pb2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Pb–O bond distances ranging from 2.67–3.24 Å. There are seven inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded to four O2- atoms to form GeO4 tetrahedra that share corners with two equivalent GeO6 octahedra and corners with two GeO4 tetrahedra. The corner-sharing octahedral tilt angles are 62°. There are a spread of Ge–O bond distances ranging from 1.78–1.81 Å. In the second Ge4+ site, Ge4+ is bonded to four O2- atoms to form GeO4 tetrahedra that share corners with two equivalent GeO6 octahedra and corners with two equivalent GeO4 tetrahedra. The corner-sharing octahedral tilt angles are 62°. There is two shorter (1.79 Å) and two longer (1.81 Å) Ge–O bond length. In the third Ge4+ site, Ge4+ is bonded to six O2- atoms to form corner-sharing GeO6 octahedra. There is four shorter (1.93 Å) and two longer (1.94 Å) Ge–O bond length. In the fourth Ge4+more »
- Publication Date:
- Other Number(s):
- mp-1218292
- 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; Ge-O-Pb-Sr; SrGe12Pb2O27; crystal structure
- OSTI Identifier:
- 1698519
- DOI:
- https://doi.org/10.17188/1698519
Citation Formats
Materials Data on SrGe12Pb2O27 by Materials Project. United States: N. p., 2020.
Web. doi:10.17188/1698519.
Materials Data on SrGe12Pb2O27 by Materials Project. United States. doi:https://doi.org/10.17188/1698519
2020.
"Materials Data on SrGe12Pb2O27 by Materials Project". United States. doi:https://doi.org/10.17188/1698519. https://www.osti.gov/servlets/purl/1698519. Pub date:Thu Apr 30 00:00:00 EDT 2020
@article{osti_1698519,
title = {Materials Data on SrGe12Pb2O27 by Materials Project},
abstractNote = {SrPb2Ge12O27 crystallizes in the monoclinic C2 space group. The structure is three-dimensional. Sr2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Sr–O bond distances ranging from 2.65–3.22 Å. Pb2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Pb–O bond distances ranging from 2.67–3.24 Å. There are seven inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded to four O2- atoms to form GeO4 tetrahedra that share corners with two equivalent GeO6 octahedra and corners with two GeO4 tetrahedra. The corner-sharing octahedral tilt angles are 62°. There are a spread of Ge–O bond distances ranging from 1.78–1.81 Å. In the second Ge4+ site, Ge4+ is bonded to four O2- atoms to form GeO4 tetrahedra that share corners with two equivalent GeO6 octahedra and corners with two equivalent GeO4 tetrahedra. The corner-sharing octahedral tilt angles are 62°. There is two shorter (1.79 Å) and two longer (1.81 Å) Ge–O bond length. In the third Ge4+ site, Ge4+ is bonded to six O2- atoms to form corner-sharing GeO6 octahedra. There is four shorter (1.93 Å) and two longer (1.94 Å) Ge–O bond length. In the fourth Ge4+ site, Ge4+ is bonded to four O2- atoms to form GeO4 tetrahedra that share corners with two equivalent GeO6 octahedra and corners with two GeO4 tetrahedra. The corner-sharing octahedra tilt angles range from 57–61°. There are a spread of Ge–O bond distances ranging from 1.77–1.80 Å. In the fifth Ge4+ site, Ge4+ is bonded to four O2- atoms to form GeO4 tetrahedra that share corners with two equivalent GeO6 octahedra and corners with two GeO4 tetrahedra. The corner-sharing octahedra tilt angles range from 58–61°. There are a spread of Ge–O bond distances ranging from 1.76–1.80 Å. In the sixth Ge4+ site, Ge4+ is bonded to four O2- atoms to form GeO4 tetrahedra that share corners with two equivalent GeO6 octahedra and corners with two GeO4 tetrahedra. The corner-sharing octahedra tilt angles range from 57–61°. There are a spread of Ge–O bond distances ranging from 1.76–1.80 Å. In the seventh Ge4+ site, Ge4+ is bonded to six O2- atoms to form corner-sharing GeO6 octahedra. There is three shorter (1.89 Å) and three longer (1.90 Å) Ge–O bond length. There are fourteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sr2+ and two Ge4+ atoms. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to one Pb2+ and two Ge4+ atoms. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to one Pb2+ and two Ge4+ atoms. In the fourth O2- site, O2- is bonded in a bent 120 degrees geometry to one Sr2+ and two Ge4+ atoms. In the fifth O2- site, O2- is bonded in a bent 120 degrees geometry to one Pb2+ and two Ge4+ atoms. In the sixth O2- site, O2- is bonded in a bent 120 degrees geometry to one Pb2+ and two Ge4+ atoms. In the seventh O2- site, O2- is bonded in a 2-coordinate geometry to one Sr2+ and two Ge4+ atoms. In the eighth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Pb2+ and two Ge4+ atoms. In the ninth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Pb2+ and two Ge4+ atoms. In the tenth O2- site, O2- is bonded in a bent 120 degrees geometry to two equivalent Pb2+ and two Ge4+ atoms. In the eleventh O2- site, O2- is bonded in a bent 120 degrees geometry to two equivalent Sr2+ and two equivalent Ge4+ atoms. In the twelfth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Pb2+ and two Ge4+ atoms. In the thirteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Sr2+ and two Ge4+ atoms. In the fourteenth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Pb2+ and two Ge4+ atoms.},
doi = {10.17188/1698519},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {4}
}
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