Search NASA⌕ Search

SEARCH · Search NASA

Results for “H-O-Pb”

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 H2Pb3O4 by Materials Project

Pb3O2(OH)2 is Indium structured and crystallizes in the tetragonal P-42_1c space group. The structure is zero-dimensional and consists of two Pb3O2(OH)2 clusters. there are two inequivalent Pb2+ sites. In the first Pb2+ site, Pb2+ is bonded in a 4-coordinate geometry to four O2- atoms. There are two shorter (2.25 Å) and two longer (2.49 Å) Pb–O bond lengths. In the second Pb2+ site, Pb2+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Pb–O bond distances ranging from 2.24–2.57 Å. H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal non-coplanar geometry to three Pb2+ atoms. In the second O2- site, O2- is bonded in a distorted single-bond geometry to three Pb2+ and one H1+ atom.

36 MATERIALS SCIENCE↗

Materials Data on H2PbO2 by Materials Project

Pb(OH)2 crystallizes in the orthorhombic Pnma space group. The structure is one-dimensional and consists of four Pb(OH)2 ribbons oriented in the (1, 0, 0) direction. Pb2+ is bonded in a 3-coordinate geometry to three O2- atoms. There are one shorter (2.19 Å) and two longer (2.54 Å) Pb–O bond lengths. There are two inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one Pb2+ and one H1+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to two equivalent Pb2+ and one H1+ atom.

36 MATERIALS SCIENCE↗