Search NASA⌕ Search

SEARCH · Search NASA

Results for “Ag-Cs-F”

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.

4 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Cs2AgF4 by Materials Project

Cs2AgF4 is (La,Ba)CuO4 structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Cs1+ is bonded in a 9-coordinate geometry to nine F1- atoms. There are a spread of Cs–F bond distances ranging from 3.04–3.23 Å. Ag2+ is bonded to six F1- atoms to form corner-sharing AgF6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are two shorter (2.21 Å) and four longer (2.29 Å) Ag–F bond lengths. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded to five equivalent Cs1+ and one Ag2+ atom to form distorted FCs5Ag octahedra that share corners with seventeen FCs5Ag octahedra, edges with eight equivalent FCs5Ag octahedra, and faces with four equivalent FCs4Ag2 octahedra. The corner-sharing octahedra tilt angles range from 0–57°. In the second F1- site, F1- is bonded to four equivalent Cs1+ and two equivalent Ag2+ atoms to form distorted FCs4Ag2 octahedra that share corners with fourteen FCs5Ag octahedra, edges with two equivalent FCs4Ag2 octahedra, and faces with eight FCs5Ag octahedra. The corner-sharing octahedra tilt angles range from 0–57°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Cs2AgF4 by Materials Project

Cs2AgF4 is (La,Ba)CuO4-like structured and crystallizes in the orthorhombic Cmce space group. The structure is three-dimensional. Cs1+ is bonded in a 9-coordinate geometry to nine F1- atoms. There are a spread of Cs–F bond distances ranging from 3.00–3.29 Å. Ag2+ is bonded to six F1- atoms to form corner-sharing AgF6 octahedra. The corner-sharing octahedral tilt angles are 2°. There are a spread of Ag–F bond distances ranging from 2.16–2.50 Å. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded to five equivalent Cs1+ and one Ag2+ atom to form distorted FCs5Ag octahedra that share corners with seventeen FCs4Ag2 octahedra, edges with eight equivalent FCs5Ag octahedra, and faces with four equivalent FCs4Ag2 octahedra. The corner-sharing octahedra tilt angles range from 0–60°. In the second F1- site, F1- is bonded to four equivalent Cs1+ and two equivalent Ag2+ atoms to form a mixture of distorted edge, face, and corner-sharing FCs4Ag2 octahedra. The corner-sharing octahedra tilt angles range from 0–60°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CsAgF3 by Materials Project

CsAgF3 is (Cubic) Perovskite-like structured and crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. Cs1+ is bonded to twelve F1- atoms to form CsF12 cuboctahedra that share corners with twelve equivalent CsF12 cuboctahedra, faces with six equivalent CsF12 cuboctahedra, and faces with eight equivalent AgF6 octahedra. There are eight shorter (3.20 Å) and four longer (3.27 Å) Cs–F bond lengths. Ag2+ is bonded to six F1- atoms to form AgF6 octahedra that share corners with six equivalent AgF6 octahedra and faces with eight equivalent CsF12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. There are a spread of Ag–F bond distances ranging from 2.12–2.50 Å. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded in a 6-coordinate geometry to four equivalent Cs1+ and two equivalent Ag2+ atoms. In the second F1- site, F1- is bonded in a distorted linear geometry to four equivalent Cs1+ and two equivalent Ag2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Cs2AgF6 by Materials Project

Cs2AgF6 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Cs is bonded to twelve equivalent F atoms to form CsF12 cuboctahedra that share corners with twelve equivalent CsF12 cuboctahedra, faces with six equivalent CsF12 cuboctahedra, and faces with four equivalent AgF6 octahedra. All Cs–F bond lengths are 3.29 Å. Ag is bonded to six equivalent F atoms to form AgF6 octahedra that share faces with eight equivalent CsF12 cuboctahedra. All Ag–F bond lengths are 2.02 Å. F is bonded in a single-bond geometry to four equivalent Cs and one Ag atom.

36 MATERIALS SCIENCE↗