Search NASA⌕ Search

SEARCH · Search NASA

Results for “Th-Tl”

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 ThTl3 by Materials Project

ThTl3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Th is bonded to twelve equivalent Tl atoms to form ThTl12 cuboctahedra that share corners with twelve equivalent ThTl12 cuboctahedra, edges with twenty-four equivalent TlTh4Tl8 cuboctahedra, faces with six equivalent ThTl12 cuboctahedra, and faces with twelve equivalent TlTh4Tl8 cuboctahedra. All Th–Tl bond lengths are 3.42 Å. Tl is bonded to four equivalent Th and eight equivalent Tl atoms to form TlTh4Tl8 cuboctahedra that share corners with twelve equivalent TlTh4Tl8 cuboctahedra, edges with eight equivalent ThTl12 cuboctahedra, edges with sixteen equivalent TlTh4Tl8 cuboctahedra, faces with four equivalent ThTl12 cuboctahedra, and faces with fourteen equivalent TlTh4Tl8 cuboctahedra. All Tl–Tl bond lengths are 3.42 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ThTl by Materials Project

ThTl crystallizes in the orthorhombic Pbcm space group. The structure is three-dimensional. there are three inequivalent Th sites. In the first Th site, Th is bonded in a 6-coordinate geometry to six Tl atoms. There are a spread of Th–Tl bond distances ranging from 3.35–3.44 Å. In the second Th site, Th is bonded to seven Tl atoms to form a mixture of distorted edge, face, and corner-sharing ThTl7 pentagonal bipyramids. There are a spread of Th–Tl bond distances ranging from 3.17–3.55 Å. In the third Th site, Th is bonded in a 9-coordinate geometry to nine Tl atoms. There are a spread of Th–Tl bond distances ranging from 3.31–3.44 Å. There are three inequivalent Tl sites. In the first Tl site, Tl is bonded in a 10-coordinate geometry to six Th and four Tl atoms. There are two shorter (3.22 Å) and two longer (3.29 Å) Tl–Tl bond lengths. In the second Tl site, Tl is bonded in a 9-coordinate geometry to nine Th atoms. In the third Tl site, Tl is bonded in a 7-coordinate geometry to seven Th and two equivalent Tl atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Th2Tl by Materials Project

Th2Tl is Khatyrkite structured and crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. Th is bonded in a 4-coordinate geometry to four equivalent Tl atoms. All Th–Tl bond lengths are 3.36 Å. Tl is bonded in a 10-coordinate geometry to eight equivalent Th and two equivalent Tl atoms. Both Tl–Tl bond lengths are 3.03 Å.

36 MATERIALS SCIENCE↗