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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.

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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on HXeF7 by Materials Project

XeHF7 crystallizes in the trigonal R-3 space group. The structure is zero-dimensional and consists of eighteen XeHF7 clusters. Xe is bonded in an octahedral geometry to six F atoms. There are a spread of Xe–F bond distances ranging from 1.99–2.12 Å. H is bonded in a single-bond geometry to two F atoms. There is one shorter (0.96 Å) and one longer (1.65 Å) H–F bond length. There are seven inequivalent F sites. In the first F site, F is bonded in a single-bond geometry to one Xe atom. In the second F site, F is bonded in a single-bond geometry to one Xe atom. In the third F site, F is bonded in a single-bond geometry to one H atom. In the fourth F site, F is bonded in a single-bond geometry to one Xe atom. In the fifth F site, F is bonded in a single-bond geometry to one Xe atom. In the sixth F site, F is bonded in a distorted bent 120 degrees geometry to one Xe and one H atom. In the seventh F site, F is bonded in a single-bond geometry to one Xe atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HXe2F15 by Materials Project

(XeF6)4(HF2)2F2 crystallizes in the orthorhombic Pna2_1 space group. The structure is zero-dimensional and consists of four hydrofluoric acid molecules, four hydrogen fluoride hydrogen fluoride molecules, and four XeF6 clusters. In each XeF6 cluster, there are two inequivalent Xe sites. In the first Xe site, Xe is bonded in a 7-coordinate geometry to seven F atoms. There are a spread of Xe–F bond distances ranging from 1.98–2.51 Å. In the second Xe site, Xe is bonded in a 7-coordinate geometry to seven F atoms. There are a spread of Xe–F bond distances ranging from 1.98–2.48 Å. There are twelve inequivalent F sites. In the first F site, F is bonded in a single-bond geometry to one Xe atom. In the second F site, F is bonded in a single-bond geometry to one Xe atom. In the third F site, F is bonded in a single-bond geometry to one Xe atom. In the fourth F site, F is bonded in a single-bond geometry to one Xe atom. In the fifth F site, F is bonded in a single-bond geometry to one Xe atom. In the sixth F site, F is bonded in a single-bond geometry to one Xe atom. In the seventh F site, F is bonded in a single-bond geometry to one Xe atom. In the eighth F site, F is bonded in a single-bond geometry to one Xe atom. In the ninth F site, F is bonded in a bent 120 degrees geometry to two Xe atoms. In the tenth F site, F is bonded in a single-bond geometry to one Xe atom. In the eleventh F site, F is bonded in a bent 120 degrees geometry to two Xe atoms. In the twelfth F site, F is bonded in a single-bond geometry to one Xe atom.

36 MATERIALS SCIENCE↗