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Title: Materials Data on Na2Si2S5 by Materials Project

Dataset ·
DOI:https://doi.org/10.17188/1192904· OSTI ID:1192904

Na2Si2S5 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 2.96–3.39 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 2.88–3.45 Å. There are two inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four S2- atoms to form corner-sharing SiS4 tetrahedra. There are a spread of Si–S bond distances ranging from 2.06–2.17 Å. In the second Si4+ site, Si4+ is bonded to four S2- atoms to form corner-sharing SiS4 tetrahedra. There are a spread of Si–S bond distances ranging from 2.08–2.17 Å. There are five inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted water-like geometry to two Na1+ and two Si4+ atoms. In the second S2- site, S2- is bonded in a water-like geometry to two equivalent Si4+ atoms. In the third S2- site, S2- is bonded in a 5-coordinate geometry to four Na1+ and one Si4+ atom. In the fourth S2- site, S2- is bonded to three Na1+ and one Si4+ atom to form distorted corner-sharing SNa3Si tetrahedra. In the fifth S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to two equivalent Na1+ and two equivalent Si4+ atoms.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Contributing Organization:
MIT; UC Berkeley; Duke; U Louvain
DOE Contract Number:
AC02-05CH11231; EDCBEE
OSTI ID:
1192904
Report Number(s):
mp-18104
Resource Relation:
Related Information: https://materialsproject.org/citing
Country of Publication:
United States
Language:
English

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