Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Au-Cs-Se”

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 Cs2Au2Se3 by Materials Project

Cs2Au2Se3 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Cs1+ is bonded in a 5-coordinate geometry to five Se2- atoms. There are a spread of Cs–Se bond distances ranging from 3.74–3.98 Å. Au2+ is bonded in a distorted linear geometry to two Se2- atoms. There are one shorter (2.44 Å) and one longer (2.45 Å) Au–Se bond lengths. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 5-coordinate geometry to three equivalent Cs1+, one Au2+, and one Se2- atom. The Se–Se bond length is 2.47 Å. In the second Se2- site, Se2- is bonded in a 6-coordinate geometry to four equivalent Cs1+ and two equivalent Au2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CsAuSe3 by Materials Project

CsAuSe3 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Cs1+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of Cs–Se bond distances ranging from 3.66–4.04 Å. Au5+ is bonded in a distorted linear geometry to two equivalent Se2- atoms. Both Au–Se bond lengths are 2.45 Å. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a distorted rectangular see-saw-like geometry to two equivalent Cs1+, one Au5+, and one Se2- atom. The Se–Se bond length is 2.43 Å. In the second Se2- site, Se2- is bonded in a 6-coordinate geometry to four equivalent Cs1+ and two equivalent Se2- atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CsAuSe by Materials Project

CsAuSe crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Cs1+ is bonded in a 7-coordinate geometry to two equivalent Au1+ and five equivalent Se2- atoms. Both Cs–Au bond lengths are 3.71 Å. There are a spread of Cs–Se bond distances ranging from 3.72–3.93 Å. Au1+ is bonded in a distorted square co-planar geometry to two equivalent Cs1+ and two equivalent Se2- atoms. Both Au–Se bond lengths are 2.46 Å. Se2- is bonded to five equivalent Cs1+ and two equivalent Au1+ atoms to form a mixture of corner and edge-sharing SeCs5Au2 pentagonal bipyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CsAu3Se2 by Materials Project

CsAu3Se2 crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. Cs1+ is bonded in a distorted hexagonal planar geometry to six equivalent Se2- atoms. All Cs–Se bond lengths are 3.94 Å. Au1+ is bonded in a distorted linear geometry to two equivalent Se2- atoms. Both Au–Se bond lengths are 2.47 Å. Se2- is bonded to three equivalent Cs1+ and three equivalent Au1+ atoms to form a mixture of distorted edge and corner-sharing SeCs3Au3 octahedra. The corner-sharing octahedra tilt angles range from 0–70°.

36 MATERIALS SCIENCE↗