Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “V2FeTe4”

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 V2FeTe4 by Materials Project

FeV2Te4 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. V+2.50+ is bonded to six Te2- atoms to form VTe6 octahedra that share corners with six equivalent FeTe6 octahedra, edges with six equivalent VTe6 octahedra, and a faceface with one FeTe6 octahedra. The corner-sharing octahedra tilt angles range from 50–56°. There are a spread of V–Te bond distances ranging from 2.65–2.92 Å. Fe3+ is bonded to six Te2- atoms to form FeTe6 octahedra that share corners with twelve equivalent VTe6 octahedra, edges with two equivalent FeTe6 octahedra, and faces with two equivalent VTe6 octahedra. The corner-sharing octahedra tilt angles range from 50–56°. There are two shorter (2.65 Å) and four longer (2.79 Å) Fe–Te bond lengths. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 5-coordinate geometry to three equivalent V+2.50+ and two equivalent Fe3+ atoms. In the second Te2- site, Te2- is bonded in a 4-coordinate geometry to three equivalent V+2.50+ and one Fe3+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on V2FeTe4 by Materials Project

FeV2Te4 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are two inequivalent V+2.50+ sites. In the first V+2.50+ site, V+2.50+ is bonded to six Te2- atoms to form VTe6 octahedra that share corners with six equivalent VTe6 octahedra, corners with six equivalent FeTe6 octahedra, edges with two equivalent VTe6 octahedra, a faceface with one VTe6 octahedra, and a faceface with one FeTe6 octahedra. The corner-sharing octahedra tilt angles range from 50–54°. There are a spread of V–Te bond distances ranging from 2.69–2.78 Å. In the second V+2.50+ site, V+2.50+ is bonded to six Te2- atoms to form VTe6 octahedra that share corners with six equivalent VTe6 octahedra, edges with two equivalent VTe6 octahedra, edges with four equivalent FeTe6 octahedra, and a faceface with one VTe6 octahedra. The corner-sharing octahedra tilt angles range from 52–54°. There are a spread of V–Te bond distances ranging from 2.69–2.79 Å. Fe3+ is bonded to six Te2- atoms to form FeTe6 octahedra that share corners with six equivalent VTe6 octahedra, edges with two equivalent FeTe6 octahedra, edges with four equivalent VTe6 octahedra, and a faceface with one VTe6 octahedra. The corner-sharing octahedra tilt angles range from 50–54°. There are a spread of Fe–Te bond distances ranging from 2.63–2.76 Å. There are four inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a distorted rectangular see-saw-like geometry to three V+2.50+ and one Fe3+ atom. In the second Te2- site, Te2- is bonded in a distorted rectangular see-saw-like geometry to two V+2.50+ and two equivalent Fe3+ atoms. In the third Te2- site, Te2- is bonded in a 5-coordinate geometry to four V+2.50+ and one Fe3+ atom. In the fourth Te2- site, Te2- is bonded in a 5-coordinate geometry to three V+2.50+ and two equivalent Fe3+ atoms.

36 MATERIALS SCIENCE↗