Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Ta9(FeS3)2”

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 OSTI2020

Materials Data on Ta9(FeS3)2 by Materials Project

Ta9(FeS3)2 crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. there are two inequivalent Ta sites. In the first Ta site, Ta is bonded in a 5-coordinate geometry to two equivalent Fe and three S atoms. Both Ta–Fe bond lengths are 2.49 Å. There are one shorter (2.42 Å) and two longer (2.55 Å) Ta–S bond lengths. In the second Ta site, Ta is bonded in a 3-coordinate geometry to three S atoms. There are two shorter (2.52 Å) and one longer (2.56 Å) Ta–S bond lengths. Fe is bonded in a 6-coordinate geometry to six equivalent Ta atoms. There are two inequivalent S sites. In the first S site, S is bonded in a distorted pentagonal planar geometry to five Ta atoms. In the second S site, S is bonded in a 4-coordinate geometry to four Ta atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ta9(FeS3)2 by Materials Project

Ta9(FeS3)2 crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. there are three inequivalent Ta sites. In the first Ta site, Ta is bonded in a 5-coordinate geometry to two equivalent Fe and three S atoms. Both Ta–Fe bond lengths are 2.57 Å. There are one shorter (2.42 Å) and two longer (2.59 Å) Ta–S bond lengths. In the second Ta site, Ta is bonded to two equivalent Fe and three S atoms to form a mixture of distorted corner and edge-sharing TaFe2S3 trigonal bipyramids. Both Ta–Fe bond lengths are 2.42 Å. There are one shorter (2.44 Å) and two longer (2.54 Å) Ta–S bond lengths. In the third Ta site, Ta is bonded in a 3-coordinate geometry to three S atoms. There are one shorter (2.51 Å) and two longer (2.52 Å) Ta–S bond lengths. Fe is bonded in a 6-coordinate geometry to six Ta atoms. There are three inequivalent S sites. In the first S site, S is bonded in a distorted pentagonal planar geometry to five Ta atoms. In the second S site, S is bonded in a distorted rectangular see-saw-like geometry to four Ta atoms. In the third S site, S is bonded in a 4-coordinate geometry to four Ta atoms.

36 MATERIALS SCIENCE↗