Search NASA⌕ Search

SEARCH · Search NASA

Results for “Cu-Te-U”

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 OSTI2018

Materials Data on U4CuTe12 by Materials Project

U4CuTe12 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are three inequivalent U+5.50+ sites. In the first U+5.50+ site, U+5.50+ is bonded in a 10-coordinate geometry to ten Te2- atoms. There are a spread of U–Te bond distances ranging from 3.26–3.50 Å. In the second U+5.50+ site, U+5.50+ is bonded in a 10-coordinate geometry to ten Te2- atoms. There are a spread of U–Te bond distances ranging from 3.11–3.49 Å. In the third U+5.50+ site, U+5.50+ is bonded in a 10-coordinate geometry to ten Te2- atoms. There are a spread of U–Te bond distances ranging from 3.14–3.56 Å. Cu2+ is bonded in a trigonal bipyramidal geometry to five Te2- atoms. There are a spread of Cu–Te bond distances ranging from 2.50–2.73 Å. There are nine inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 1-coordinate geometry to three U+5.50+, one Cu2+, and one Te2- atom. The Te–Te bond length is 3.33 Å. In the second Te2- site, Te2- is bonded in a 4-coordinate geometry to four U+5.50+ and one Te2- atom. The Te–Te bond length is 3.79 Å. In the third Te2- site, Te2- is bonded in a 2-coordinate geometry to two U+5.50+ and one Te2- atom. The Te–Te bond length is 3.65 Å. In the fourth Te2- site, Te2- is bonded in a 4-coordinate geometry to four U+5.50+ and two Te2- atoms. There are one shorter (2.96 Å) and one longer (3.16 Å) Te–Te bond lengths. In the fifth Te2- site, Te2- is bonded in a 1-coordinate geometry to three U+5.50+, one Cu2+, and one Te2- atom. In the sixth Te2- site, Te2- is bonded in a 4-coordinate geometry to four U+5.50+, one Cu2+, and one Te2- atom. The Te–Te bond length is 3.00 Å. In the seventh Te2- site, Te2- is bonded in a 2-coordinate geometry to four U+5.50+, one Cu2+, and one Te2- atom. The Te–Te bond length is 3.85 Å. In the eighth Te2- site, Te2- is bonded in a 12-coordinate geometry to two equivalent U+5.50+ and ten Te2- atoms. The Te–Te bond length is 3.37 Å. In the ninth Te2- site, Te2- is bonded in a 4-coordinate geometry to four U+5.50+ and one Te2- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on U4CuTe12 by Materials Project

U4CuTe12 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are three inequivalent U+5.50+ sites. In the first U+5.50+ site, U+5.50+ is bonded in a 8-coordinate geometry to eight Te2- atoms. There are a spread of U–Te bond distances ranging from 3.12–3.23 Å. In the second U+5.50+ site, U+5.50+ is bonded in a 8-coordinate geometry to eight Te2- atoms. There are a spread of U–Te bond distances ranging from 3.11–3.26 Å. In the third U+5.50+ site, U+5.50+ is bonded in a 8-coordinate geometry to eight Te2- atoms. There are a spread of U–Te bond distances ranging from 3.11–3.22 Å. Cu2+ is bonded in a tetrahedral geometry to four Te2- atoms. There are a spread of Cu–Te bond distances ranging from 2.59–2.67 Å. There are nine inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 3-coordinate geometry to two equivalent U+5.50+, one Cu2+, and one Te2- atom. The Te–Te bond length is 3.08 Å. In the second Te2- site, Te2- is bonded in a 2-coordinate geometry to two equivalent U+5.50+ and one Te2- atom. The Te–Te bond length is 2.94 Å. In the third Te2- site, Te2- is bonded in a 3-coordinate geometry to two U+5.50+ and one Cu2+ atom. In the fourth Te2- site, Te2- is bonded in a 2-coordinate geometry to two equivalent U+5.50+ and two Te2- atoms. In the fifth Te2- site, Te2- is bonded in a 3-coordinate geometry to two equivalent U+5.50+ and one Cu2+ atom. In the sixth Te2- site, Te2- is bonded in a 2-coordinate geometry to two U+5.50+ atoms. In the seventh Te2- site, Te2- is bonded to four U+5.50+ atoms to form a mixture of distorted edge and corner-sharing TeU4 trigonal pyramids. In the eighth Te2- site, Te2- is bonded to four U+5.50+ atoms to form a mixture of distorted edge and corner-sharing TeU4 trigonal pyramids. In the ninth Te2- site, Te2- is bonded to four U+5.50+ atoms to form a mixture of distorted edge and corner-sharing TeU4 trigonal pyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2019

Materials Data on U2CuTe6 by Materials Project

U2CuTe6 crystallizes in the monoclinic Pm space group. The structure is three-dimensional. there are two inequivalent U5+ sites. In the first U5+ site, U5+ is bonded in a 8-coordinate geometry to eight Te2- atoms. There are a spread of U–Te bond distances ranging from 3.11–3.25 Å. In the second U5+ site, U5+ is bonded in a 8-coordinate geometry to eight Te2- atoms. There are a spread of U–Te bond distances ranging from 3.11–3.23 Å. Cu2+ is bonded to four Te2- atoms to form corner-sharing CuTe4 tetrahedra. There are a spread of Cu–Te bond distances ranging from 2.59–2.64 Å. There are six inequivalent Te2- sites. In the first Te2- site, Te2- is bonded to four U5+ atoms to form a mixture of distorted corner and edge-sharing TeU4 trigonal pyramids. In the second Te2- site, Te2- is bonded to four U5+ atoms to form a mixture of distorted corner and edge-sharing TeU4 trigonal pyramids. In the third Te2- site, Te2- is bonded in a 3-coordinate geometry to two equivalent U5+ and one Cu2+ atom. In the fourth Te2- site, Te2- is bonded in a 2-coordinate geometry to two equivalent U5+ and two equivalent Cu2+ atoms. In the fifth Te2- site, Te2- is bonded in a 3-coordinate geometry to two equivalent U5+ and one Cu2+ atom. In the sixth Te2- site, Te2- is bonded in a 2-coordinate geometry to two equivalent U5+ atoms.

36 MATERIALS SCIENCE↗