Search NASA⌕ Search

SEARCH · Search NASA

Results for “Be-N-O”

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 Be(N3O7)2 by Materials Project

Be(NO3)4(NO)2 crystallizes in the orthorhombic Fdd2 space group. The structure is zero-dimensional and consists of sixteen nitroxyl molecules and eight Be(NO3)4 clusters. In each Be(NO3)4 cluster, Be2+ is bonded in a tetrahedral geometry to four O2- atoms. There is two shorter (1.63 Å) and two longer (1.68 Å) Be–O bond length. There are two inequivalent N+4.33+ sites. In the first N+4.33+ site, N+4.33+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of N–O bond distances ranging from 1.25–1.28 Å. In the second N+4.33+ site, N+4.33+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of N–O bond distances ranging from 1.23–1.34 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one N+4.33+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to one Be2+ and one N+4.33+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one N+4.33+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one N+4.33+ atom. In the fifth O2- site, O2- is bonded in a bent 120 degrees geometry to one Be2+ and one N+4.33+ atom. In the sixth O2- site, O2- is bonded in a single-bond geometry to one N+4.33+ atom.

36 MATERIALS SCIENCE↗