Search NASA⌕ Search

SEARCH · Search NASA

Results for “P-Tm”

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 TmP by Materials Project

Tm(P) is Halite, Rock Salt structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Tm3+ is bonded to six equivalent P3- atoms to form a mixture of edge and corner-sharing TmP6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Tm–P bond lengths are 2.79 Å. P3- is bonded to six equivalent Tm3+ atoms to form a mixture of edge and corner-sharing PTm6 octahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TmP5 by Materials Project

TmP5 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. Tm3+ is bonded in a 8-coordinate geometry to eight P+0.60- atoms. There are a spread of Tm–P bond distances ranging from 2.89–3.00 Å. There are three inequivalent P+0.60- sites. In the first P+0.60- site, P+0.60- is bonded to two equivalent Tm3+ and two P+0.60- atoms to form a mixture of edge and corner-sharing PTm2P2 tetrahedra. There are one shorter (2.17 Å) and one longer (2.22 Å) P–P bond lengths. In the second P+0.60- site, P+0.60- is bonded to two equivalent Tm3+ and two equivalent P+0.60- atoms to form distorted corner-sharing PTm2P2 tetrahedra. Both P–P bond lengths are 2.21 Å. In the third P+0.60- site, P+0.60- is bonded to one Tm3+ and three P+0.60- atoms to form distorted PTmP3 tetrahedra that share corners with nine PTm2P2 tetrahedra and an edgeedge with one PTmP3 tetrahedra. The P–P bond length is 2.19 Å.

36 MATERIALS SCIENCE↗