Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “C-F-O-Sb-Te-W”

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 Sb2Te3WC4(OF3)4 by Materials Project

WCSb2Te3OF12(CO)3 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional and consists of twelve formaldehyde molecules and one WCSb2Te3OF12 framework. In the WCSb2Te3OF12 framework, W4+ is bonded in a 6-coordinate geometry to three Te2- atoms. There are two shorter (2.87 Å) and one longer (2.89 Å) W–Te bond lengths. C4+ is bonded in a single-bond geometry to one O2- atom. The C–O bond length is 1.16 Å. There are two inequivalent Sb3+ sites. In the first Sb3+ site, Sb3+ is bonded in an octahedral geometry to six F1- atoms. There are a spread of Sb–F bond distances ranging from 1.91–1.93 Å. In the second Sb3+ site, Sb3+ is bonded in an octahedral geometry to six F1- atoms. There is three shorter (1.92 Å) and three longer (1.93 Å) Sb–F bond length. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 1-coordinate geometry to one W4+, two equivalent Te2-, and three F1- atoms. Both Te–Te bond lengths are 2.78 Å. There are one shorter (2.88 Å) and two longer (3.23 Å) Te–F bond lengths. In the second Te2- site, Te2- is bonded in a 3-coordinate geometry to one W4+, two Te2-, one O2-, and four F1- atoms. The Te–Te bond length is 2.78 Å. The Te–O bond length is 3.84 Å. There are a spread of Te–F bond distances ranging from 3.10–3.59 Å. O2- is bonded in a single-bond geometry to one C4+ and two equivalent Te2- atoms. There are eight inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one Sb3+ and one Te2- atom. In the second F1- site, F1- is bonded in a distorted single-bond geometry to one Sb3+ and one Te2- atom. In the third F1- site, F1- is bonded in a single-bond geometry to one Sb3+ and one Te2- atom. In the fourth F1- site, F1- is bonded in a distorted single-bond geometry to one Sb3+ and one Te2- atom. In the fifth F1- site, F1- is bonded in a single-bond geometry to one Sb3+ atom. In the sixth F1- site, F1- is bonded in a single-bond geometry to one Sb3+ and two equivalent Te2- atoms. In the seventh F1- site, F1- is bonded in a distorted single-bond geometry to one Sb3+ and one Te2- atom. In the eighth F1- site, F1- is bonded in a single-bond geometry to one Sb3+ atom.

36 MATERIALS SCIENCE↗