Search NASA⌕ Search

SEARCH · Search NASA

Results for “Ce4CrS7”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

2 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2019

Materials Data on Ce4CrS7 by Materials Project

Ce4CrS7 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are four inequivalent Ce3+ sites. In the first Ce3+ site, Ce3+ is bonded to six S2- atoms to form face-sharing CeS6 octahedra. There are a spread of Ce–S bond distances ranging from 2.77–2.79 Å. In the second Ce3+ site, Ce3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Ce–S bond distances ranging from 2.73–3.35 Å. In the third Ce3+ site, Ce3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Ce–S bond distances ranging from 2.74–3.34 Å. In the fourth Ce3+ site, Ce3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Ce–S bond distances ranging from 2.75–3.35 Å. Cr2+ is bonded in a tetrahedral geometry to four S2- atoms. There are a spread of Cr–S bond distances ranging from 2.31–2.33 Å. There are seven inequivalent S2- sites. In the first S2- site, S2- is bonded in a 6-coordinate geometry to six Ce3+ atoms. In the second S2- site, S2- is bonded in a 6-coordinate geometry to six Ce3+ atoms. In the third S2- site, S2- is bonded in a 6-coordinate geometry to six Ce3+ atoms. In the fourth S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to three Ce3+ and one Cr2+ atom. In the fifth S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to three Ce3+ and one Cr2+ atom. In the sixth S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to three Ce3+ and one Cr2+ atom. In the seventh S2- site, S2- is bonded in a distorted tetrahedral geometry to three Ce3+ and one Cr2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2019

Materials Data on Ce4CrS7 by Materials Project

Ce4CrS7 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are four inequivalent Ce3+ sites. In the first Ce3+ site, Ce3+ is bonded to seven S2- atoms to form distorted corner-sharing CeS7 pentagonal bipyramids. There are a spread of Ce–S bond distances ranging from 2.78–3.11 Å. In the second Ce3+ site, Ce3+ is bonded in a 7-coordinate geometry to seven S2- atoms. There are a spread of Ce–S bond distances ranging from 2.68–3.38 Å. In the third Ce3+ site, Ce3+ is bonded in a 7-coordinate geometry to seven S2- atoms. There are a spread of Ce–S bond distances ranging from 2.76–3.22 Å. In the fourth Ce3+ site, Ce3+ is bonded in a 7-coordinate geometry to seven S2- atoms. There are a spread of Ce–S bond distances ranging from 2.65–3.50 Å. Cr2+ is bonded in a 5-coordinate geometry to six S2- atoms. There are a spread of Cr–S bond distances ranging from 2.49–3.25 Å. There are seven inequivalent S2- sites. In the first S2- site, S2- is bonded in a 6-coordinate geometry to four Ce3+ and two equivalent Cr2+ atoms. In the second S2- site, S2- is bonded in a 4-coordinate geometry to three Ce3+ and two equivalent Cr2+ atoms. In the third S2- site, S2- is bonded in a 5-coordinate geometry to four Ce3+ and two equivalent Cr2+ atoms. In the fourth S2- site, S2- is bonded in a 5-coordinate geometry to five Ce3+ atoms. In the fifth S2- site, S2- is bonded to four Ce3+ atoms to form a mixture of distorted edge and corner-sharing SCe4 trigonal pyramids. In the sixth S2- site, S2- is bonded in a 4-coordinate geometry to four Ce3+ atoms. In the seventh S2- site, S2- is bonded to four Ce3+ atoms to form a mixture of edge and corner-sharing SCe4 tetrahedra.

36 MATERIALS SCIENCE↗