Search NASA⌕ Search

SEARCH · Search NASA

Results for “Be-F-H-N”

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 BeH8(NF2)2 by Materials Project

(NH4)2BeF4 is Silicon tetrafluoride-derived structured and crystallizes in the orthorhombic Pna2_1 space group. The structure is zero-dimensional and consists of sixteen ammonium molecules and eight BeF4 clusters. In each BeF4 cluster, Be2+ is bonded in a tetrahedral geometry to four F1- atoms. There are a spread of Be–F bond distances ranging from 1.56–1.59 Å. There are four inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one Be2+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one Be2+ atom. In the third F1- site, F1- is bonded in a single-bond geometry to one Be2+ atom. In the fourth F1- site, F1- is bonded in a single-bond geometry to one Be2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on BeH4NF3 by Materials Project

BeF3NH4 crystallizes in the monoclinic Pc space group. The structure is one-dimensional and consists of four ammonium molecules and two BeF3 ribbons oriented in the (0, 1, 0) direction. In each BeF3 ribbon, there are two inequivalent Be2+ sites. In the first Be2+ site, Be2+ is bonded to four F1- atoms to form corner-sharing BeF4 tetrahedra. There are a spread of Be–F bond distances ranging from 1.49–1.61 Å. In the second Be2+ site, Be2+ is bonded to four F1- atoms to form corner-sharing BeF4 tetrahedra. There are a spread of Be–F bond distances ranging from 1.49–1.61 Å. There are six inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one Be2+ atom. In the second F1- site, F1- is bonded in a distorted single-bond geometry to one Be2+ atom. In the third F1- site, F1- is bonded in a bent 120 degrees geometry to two Be2+ atoms. In the fourth F1- site, F1- is bonded in a single-bond geometry to one Be2+ atom. In the fifth F1- site, F1- is bonded in a single-bond geometry to one Be2+ atom. In the sixth F1- site, F1- is bonded in a bent 120 degrees geometry to two Be2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on BeH4NF3 by Materials Project

BeF3NH4 crystallizes in the orthorhombic P2_12_12_1 space group. The structure is zero-dimensional and consists of four ammonium molecules and four BeF3 clusters. In each BeF3 cluster, Be2+ is bonded in a trigonal planar geometry to three F1- atoms. There are a spread of Be–F bond distances ranging from 1.47–1.50 Å. There are three inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one Be2+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one Be2+ atom. In the third F1- site, F1- is bonded in a single-bond geometry to one Be2+ atom.

36 MATERIALS SCIENCE↗