Search NASA⌕ Search

SEARCH · Search NASA

Results for “GdB2HO5”

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 GdB2HO5 by Materials Project

GdB2HO5 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are two inequivalent Gd3+ sites. In the first Gd3+ site, Gd3+ is bonded in a 7-coordinate geometry to one H1+ and eight O2- atoms. The Gd–H bond length is 2.55 Å. There are a spread of Gd–O bond distances ranging from 2.23–2.62 Å. In the second Gd3+ site, Gd3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Gd–O bond distances ranging from 2.31–2.64 Å. There are four inequivalent B3+ sites. In the first B3+ site, B3+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of B–O bond distances ranging from 1.44–1.55 Å. In the second B3+ site, B3+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of B–O bond distances ranging from 1.43–1.54 Å. In the third B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of B–O bond distances ranging from 1.35–1.42 Å. In the fourth B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of B–O bond distances ranging from 1.35–1.41 Å. There are two inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one Gd3+ and one O2- atom. The H–O bond length is 0.99 Å. In the second H1+ site, H1+ is bonded in a distorted linear geometry to two O2- atoms. There is one shorter (1.02 Å) and one longer (1.60 Å) H–O bond length. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two Gd3+, one B3+, and one H1+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to two Gd3+ and one B3+ atom. In the third O2- site, O2- is bonded in a 2-coordinate geometry to one Gd3+ and two B3+ atoms. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to one Gd3+ and two B3+ atoms. In the fifth O2- site, O2- is bonded in a distorted water-like geometry to two Gd3+, one B3+, and one H1+ atom. In the sixth O2- site, O2- is bonded in a distorted water-like geometry to two Gd3+, one B3+, and one H1+ atom. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to two Gd3+ and one B3+ atom. In the eighth O2- site, O2- is bonded in a 3-coordinate geometry to two Gd3+ and one B3+ atom. In the ninth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Gd3+ and two B3+ atoms. In the tenth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Gd3+ and two B3+ atoms.

36 MATERIALS SCIENCE↗