Search NASA⌕ Search

SEARCH · Search NASA

Results for “Ge-Pt-Th”

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.

3 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Th(GePt)2 by Materials Project

Th(PtGe)2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Th is bonded in a 8-coordinate geometry to eight equivalent Pt and eight equivalent Ge atoms. All Th–Pt bond lengths are 3.34 Å. All Th–Ge bond lengths are 3.36 Å. Pt is bonded in a 4-coordinate geometry to four equivalent Th and four equivalent Ge atoms. All Pt–Ge bond lengths are 2.54 Å. Ge is bonded in a 9-coordinate geometry to four equivalent Th, four equivalent Pt, and one Ge atom. The Ge–Ge bond length is 2.47 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Th(Ge3Pt)4 by Materials Project

ThPt4Ge12 crystallizes in the cubic Im-3 space group. The structure is three-dimensional. Th is bonded to twelve equivalent Ge atoms to form ThGe12 cuboctahedra that share faces with eight equivalent PtGe6 octahedra. All Th–Ge bond lengths are 3.37 Å. Pt is bonded to six equivalent Ge atoms to form PtGe6 octahedra that share corners with six equivalent PtGe6 octahedra and faces with two equivalent ThGe12 cuboctahedra. The corner-sharing octahedral tilt angles are 60°. All Pt–Ge bond lengths are 2.52 Å. Ge is bonded in a 2-coordinate geometry to one Th, two equivalent Pt, and two equivalent Ge atoms. There are one shorter (2.54 Å) and one longer (2.65 Å) Ge–Ge bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Th(GePt)2 by Materials Project

Th(PtGe)2 crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Th is bonded in a 12-coordinate geometry to eight Pt and eight Ge atoms. There are four shorter (3.32 Å) and four longer (3.36 Å) Th–Pt bond lengths. There are four shorter (3.29 Å) and four longer (3.39 Å) Th–Ge bond lengths. There are two inequivalent Pt sites. In the first Pt site, Pt is bonded in a 4-coordinate geometry to four equivalent Th and four equivalent Ge atoms. All Pt–Ge bond lengths are 2.58 Å. In the second Pt site, Pt is bonded in a 9-coordinate geometry to four equivalent Th and five Ge atoms. There are one shorter (2.46 Å) and four longer (2.53 Å) Pt–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 4-coordinate geometry to four equivalent Th and four equivalent Pt atoms. In the second Ge site, Ge is bonded in a 9-coordinate geometry to four equivalent Th and five Pt atoms.

36 MATERIALS SCIENCE↗