Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “I-Ta-Te”

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.

Materials Data on TaTe4I by Materials Project

TaTe4I crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Ta3+ is bonded in a distorted single-bond geometry to three Te+0.50- atoms. There are a spread of Ta–Te bond distances ranging from 1.64–3.50 Å. There are four inequivalent Te+0.50- sites. In the first Te+0.50- site, Te+0.50- is bonded in a distorted single-bond geometry to one Ta3+ atom. In the second Te+0.50- site, Te+0.50- is bonded in a 4-coordinate geometry to three Te+0.50- and one I1- atom. There are a spread of Te–Te bond distances ranging from 2.83–3.06 Å. The Te–I bond length is 3.59 Å. In the third Te+0.50- site, Te+0.50- is bonded in a distorted single-bond geometry to two Te+0.50- and one I1- atom. The Te–Te bond length is 2.20 Å. The Te–I bond length is 2.35 Å. In the fourth Te+0.50- site, Te+0.50- is bonded in a 5-coordinate geometry to two equivalent Ta3+ and three Te+0.50- atoms. I1- is bonded in a 1-coordinate geometry to two Te+0.50- atoms.

36 MATERIALS SCIENCE↗

Materials Data on Ta3TeI7 by Materials Project

Ta3TeI7 crystallizes in the hexagonal P6_3mc space group. The structure is two-dimensional and consists of two Ta3TeI7 sheets oriented in the (0, 0, 1) direction. Ta3+ is bonded to one Te2- and five I1- atoms to form distorted edge-sharing TaTeI5 octahedra. The Ta–Te bond length is 2.74 Å. There are a spread of Ta–I bond distances ranging from 2.76–3.06 Å. Te2- is bonded in a 12-coordinate geometry to three equivalent Ta3+ atoms. There are three inequivalent I1- sites. In the first I1- site, I1- is bonded in a water-like geometry to two equivalent Ta3+ atoms. In the second I1- site, I1- is bonded in a distorted trigonal non-coplanar geometry to three equivalent Ta3+ atoms. In the third I1- site, I1- is bonded in a 2-coordinate geometry to two equivalent Ta3+ atoms.

36 MATERIALS SCIENCE↗