Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Mn-O-Pb-Re”

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 MnRe(PbO3)2 by Materials Project

Pb2MnReO6 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Re6+ is bonded to six equivalent O2- atoms to form ReO6 octahedra that share corners with six equivalent MnO6 octahedra and faces with eight equivalent PbO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Re–O bond lengths are 1.93 Å. Mn2+ is bonded to six equivalent O2- atoms to form MnO6 octahedra that share corners with six equivalent ReO6 octahedra and faces with eight equivalent PbO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Mn–O bond lengths are 2.15 Å. Pb2+ is bonded to twelve equivalent O2- atoms to form PbO12 cuboctahedra that share corners with twelve equivalent PbO12 cuboctahedra, faces with six equivalent PbO12 cuboctahedra, faces with four equivalent ReO6 octahedra, and faces with four equivalent MnO6 octahedra. All Pb–O bond lengths are 2.89 Å. O2- is bonded in a distorted linear geometry to one Re6+, one Mn2+, and four equivalent Pb2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on MnRe(PbO3)2 by Materials Project

Pb2MnReO6 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Re6+ sites. In the first Re6+ site, Re6+ is bonded to six O2- atoms to form ReO6 octahedra that share corners with six MnO6 octahedra. The corner-sharing octahedra tilt angles range from 0–27°. There are a spread of Re–O bond distances ranging from 1.93–1.96 Å. In the second Re6+ site, Re6+ is bonded to six O2- atoms to form ReO6 octahedra that share corners with six MnO6 octahedra. The corner-sharing octahedra tilt angles range from 8–20°. There are a spread of Re–O bond distances ranging from 1.88–1.97 Å. There are two inequivalent Mn2+ sites. In the first Mn2+ site, Mn2+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with six ReO6 octahedra. The corner-sharing octahedra tilt angles range from 0–15°. There are two shorter (2.13 Å) and four longer (2.20 Å) Mn–O bond lengths. In the second Mn2+ site, Mn2+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with six ReO6 octahedra. The corner-sharing octahedra tilt angles range from 8–27°. There are a spread of Mn–O bond distances ranging from 2.16–2.25 Å. There are two inequivalent Pb2+ sites. In the first Pb2+ site, Pb2+ is bonded in a 12-coordinate geometry to twelve O2- atoms. There are a spread of Pb–O bond distances ranging from 2.57–3.18 Å. In the second Pb2+ site, Pb2+ is bonded in a 12-coordinate geometry to seven O2- atoms. There are a spread of Pb–O bond distances ranging from 2.57–2.88 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted linear geometry to one Re6+, one Mn2+, and two equivalent Pb2+ atoms. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Re6+, one Mn2+, and four Pb2+ atoms. In the third O2- site, O2- is bonded in a 2-coordinate geometry to one Re6+, one Mn2+, and two equivalent Pb2+ atoms. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to one Re6+, one Mn2+, and four Pb2+ atoms. In the fifth O2- site, O2- is bonded in a distorted linear geometry to one Re6+, one Mn2+, and four Pb2+ atoms. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to one Re6+, one Mn2+, and two equivalent Pb2+ atoms. In the seventh O2- site, O2- is bonded in a 2-coordinate geometry to one Re6+, one Mn2+, and two equivalent Pb2+ atoms. In the eighth O2- site, O2- is bonded in a 2-coordinate geometry to one Re6+, one Mn2+, and three Pb2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on MnRe(PbO3)2 by Materials Project

Pb2MnReO6 crystallizes in the orthorhombic Imma space group. The structure is three-dimensional. Re6+ is bonded to six O2- atoms to form ReO6 octahedra that share corners with two equivalent ReO6 octahedra and corners with four equivalent MnO6 octahedra. The corner-sharing octahedra tilt angles range from 34–45°. There is four shorter (1.91 Å) and two longer (1.95 Å) Re–O bond length. Mn2+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with two equivalent MnO6 octahedra and corners with four equivalent ReO6 octahedra. The corner-sharing octahedra tilt angles range from 45–46°. There are two shorter (1.96 Å) and four longer (2.10 Å) Mn–O bond lengths. There are two inequivalent Pb2+ sites. In the first Pb2+ site, Pb2+ is bonded in a hexagonal planar geometry to six O2- atoms. There are four shorter (2.59 Å) and two longer (2.74 Å) Pb–O bond lengths. In the second Pb2+ site, Pb2+ is bonded in a hexagonal planar geometry to six O2- atoms. There are four shorter (2.61 Å) and two longer (2.64 Å) Pb–O bond lengths. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two equivalent Re6+ and two equivalent Pb2+ atoms. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Mn2+ and two equivalent Pb2+ atoms. In the third O2- site, O2- is bonded in a 4-coordinate geometry to one Re6+, one Mn2+, and two Pb2+ atoms.

36 MATERIALS SCIENCE↗