DOE Data Explorer title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Materials Data on Na2Ge2S5 by Materials Project

Abstract

Na2Ge2S5 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six S2- atoms. There are a spread of Na–S bond distances ranging from 2.98–3.38 Å. In the second Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six S2- atoms. There are a spread of Na–S bond distances ranging from 2.93–3.44 Å. There are two inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded to four S2- atoms to form corner-sharing GeS4 tetrahedra. There are a spread of Ge–S bond distances ranging from 2.15–2.27 Å. In the second Ge4+ site, Ge4+ is bonded to four S2- atoms to form corner-sharing GeS4 tetrahedra. There are a spread of Ge–S bond distances ranging from 2.17–2.27 Å. There are five inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to two equivalent Na1+ and two equivalent Ge4+ atoms. In the second S2- site, S2- is bonded in a 2-coordinate geometry to two Na1+ and two Ge4+ atoms. In the third S2- site, S2- is bonded in a water-like geometry to twomore » equivalent Ge4+ atoms. In the fourth S2- site, S2- is bonded to four Na1+ and one Ge4+ atom to form distorted SNa4Ge square pyramids that share corners with six equivalent SNa3Ge trigonal pyramids and edges with two equivalent SNa4Ge square pyramids. In the fifth S2- site, S2- is bonded to three Na1+ and one Ge4+ atom to form distorted SNa3Ge trigonal pyramids that share corners with six equivalent SNa4Ge square pyramids and corners with two equivalent SNa3Ge trigonal pyramids.« less

Authors:
Publication Date:
Other Number(s):
mp-18568
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; Na2Ge2S5; Ge-Na-S
OSTI Identifier:
1193171
DOI:
https://doi.org/10.17188/1193171

Citation Formats

The Materials Project. Materials Data on Na2Ge2S5 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1193171.
The Materials Project. Materials Data on Na2Ge2S5 by Materials Project. United States. doi:https://doi.org/10.17188/1193171
The Materials Project. 2020. "Materials Data on Na2Ge2S5 by Materials Project". United States. doi:https://doi.org/10.17188/1193171. https://www.osti.gov/servlets/purl/1193171. Pub date:Tue Jul 14 00:00:00 EDT 2020
@article{osti_1193171,
title = {Materials Data on Na2Ge2S5 by Materials Project},
author = {The Materials Project},
abstractNote = {Na2Ge2S5 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six S2- atoms. There are a spread of Na–S bond distances ranging from 2.98–3.38 Å. In the second Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six S2- atoms. There are a spread of Na–S bond distances ranging from 2.93–3.44 Å. There are two inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded to four S2- atoms to form corner-sharing GeS4 tetrahedra. There are a spread of Ge–S bond distances ranging from 2.15–2.27 Å. In the second Ge4+ site, Ge4+ is bonded to four S2- atoms to form corner-sharing GeS4 tetrahedra. There are a spread of Ge–S bond distances ranging from 2.17–2.27 Å. There are five inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to two equivalent Na1+ and two equivalent Ge4+ atoms. In the second S2- site, S2- is bonded in a 2-coordinate geometry to two Na1+ and two Ge4+ atoms. In the third S2- site, S2- is bonded in a water-like geometry to two equivalent Ge4+ atoms. In the fourth S2- site, S2- is bonded to four Na1+ and one Ge4+ atom to form distorted SNa4Ge square pyramids that share corners with six equivalent SNa3Ge trigonal pyramids and edges with two equivalent SNa4Ge square pyramids. In the fifth S2- site, S2- is bonded to three Na1+ and one Ge4+ atom to form distorted SNa3Ge trigonal pyramids that share corners with six equivalent SNa4Ge square pyramids and corners with two equivalent SNa3Ge trigonal pyramids.},
doi = {10.17188/1193171},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 14 00:00:00 EDT 2020},
month = {Tue Jul 14 00:00:00 EDT 2020}
}