Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “B-H-Li-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.

Materials Data on LiB3H18N5 by Materials Project

Li(NH3)4(BH)3NH3 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four ammonia molecules, twelve boranediylradical molecules, and four Li(NH3)4 clusters. In each Li(NH3)4 cluster, Li1+ is bonded in a tetrahedral geometry to four N+2.80- atoms. There are a spread of Li–N bond distances ranging from 2.07–2.13 Å. There are four inequivalent N+2.80- sites. In the first N+2.80- site, N+2.80- is bonded in a distorted trigonal non-coplanar geometry to one Li1+ and three H+0.89+ atoms. There is one shorter (1.02 Å) and two longer (1.03 Å) N–H bond length. In the second N+2.80- site, N+2.80- is bonded to one Li1+ and three H+0.89+ atoms to form distorted corner-sharing NLiH3 tetrahedra. There is one shorter (1.02 Å) and two longer (1.03 Å) N–H bond length. In the third N+2.80- site, N+2.80- is bonded to one Li1+ and three H+0.89+ atoms to form distorted corner-sharing NLiH3 tetrahedra. There is one shorter (1.02 Å) and two longer (1.03 Å) N–H bond length. In the fourth N+2.80- site, N+2.80- is bonded to one Li1+ and three H+0.89+ atoms to form distorted corner-sharing NLiH3 tetrahedra. There is one shorter (1.02 Å) and two longer (1.03 Å) N–H bond length. There are twelve inequivalent H+0.89+ sites. In the first H+0.89+ site, H+0.89+ is bonded in a single-bond geometry to one N+2.80- atom. In the second H+0.89+ site, H+0.89+ is bonded in a single-bond geometry to one N+2.80- atom. In the third H+0.89+ site, H+0.89+ is bonded in a single-bond geometry to one N+2.80- atom. In the fourth H+0.89+ site, H+0.89+ is bonded in a single-bond geometry to one N+2.80- atom. In the fifth H+0.89+ site, H+0.89+ is bonded in a single-bond geometry to one N+2.80- atom. In the sixth H+0.89+ site, H+0.89+ is bonded in a single-bond geometry to one N+2.80- atom. In the seventh H+0.89+ site, H+0.89+ is bonded in a single-bond geometry to one N+2.80- atom. In the eighth H+0.89+ site, H+0.89+ is bonded in a single-bond geometry to one N+2.80- atom. In the ninth H+0.89+ site, H+0.89+ is bonded in a single-bond geometry to one N+2.80- atom. In the tenth H+0.89+ site, H+0.89+ is bonded in a single-bond geometry to one N+2.80- atom. In the eleventh H+0.89+ site, H+0.89+ is bonded in a single-bond geometry to one N+2.80- atom. In the twelfth H+0.89+ site, H+0.89+ is bonded in a single-bond geometry to one N+2.80- atom.

36 MATERIALS SCIENCE↗

Materials Data on LiBH7N by Materials Project

Li(NH3)BH4 crystallizes in the orthorhombic Pnma space group. The structure is one-dimensional and consists of two Li(NH3)BH4 ribbons oriented in the (1, 0, 0) direction. Li1+ is bonded in a 7-coordinate geometry to one N3- and four H+0.71+ atoms. The Li–N bond length is 2.07 Å. There are a spread of Li–H bond distances ranging from 2.03–2.11 Å. B3- is bonded in a tetrahedral geometry to four H+0.71+ atoms. All B–H bond lengths are 1.23 Å. N3- is bonded in a distorted tetrahedral geometry to one Li1+ and three H+0.71+ atoms. There is two shorter (1.02 Å) and one longer (1.03 Å) N–H bond length. There are five inequivalent H+0.71+ sites. In the first H+0.71+ site, H+0.71+ is bonded in a single-bond geometry to one N3- atom. In the second H+0.71+ site, H+0.71+ is bonded in a single-bond geometry to one N3- atom. In the third H+0.71+ site, H+0.71+ is bonded in a water-like geometry to one Li1+ and one B3- atom. In the fourth H+0.71+ site, H+0.71+ is bonded in a 2-coordinate geometry to one Li1+ and one B3- atom. In the fifth H+0.71+ site, H+0.71+ is bonded in a water-like geometry to one Li1+ and one B3- atom.

36 MATERIALS SCIENCE↗