Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Mn-O-Pb-V”

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 Mn5V2Pb3O16 by Materials Project

Pb3Mn5V2O16 crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. V5+ is bonded to four O2- atoms to form VO4 tetrahedra that share corners with three equivalent MnO6 octahedra. The corner-sharing octahedral tilt angles are 24°. There is one shorter (1.69 Å) and three longer (1.77 Å) V–O bond length. There are two inequivalent Mn+3.20+ sites. In the first Mn+3.20+ site, Mn+3.20+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles are 53°. There is two shorter (1.95 Å) and four longer (1.96 Å) Mn–O bond length. In the second Mn+3.20+ site, Mn+3.20+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with six equivalent MnO6 octahedra and corners with three equivalent VO4 tetrahedra. The corner-sharing octahedral tilt angles are 53°. There are three shorter (2.11 Å) and three longer (2.21 Å) Mn–O bond lengths. There are two inequivalent Pb2+ sites. In the first Pb2+ site, Pb2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Pb–O bond distances ranging from 2.51–2.98 Å. In the second Pb2+ site, Pb2+ is bonded in a distorted hexagonal planar geometry to six equivalent O2- atoms. All Pb–O bond lengths are 2.70 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to three Mn+3.20+ and one Pb2+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one V5+ and one Pb2+ atom. In the third O2- site, O2- is bonded in a 2-coordinate geometry to one V5+, one Mn+3.20+, and three Pb2+ atoms. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to three equivalent Mn+3.20+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on MnV2(PbO4)2 by Materials Project

V2Mn(PbO4)2 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. there are two inequivalent V5+ sites. In the first V5+ site, V5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of V–O bond distances ranging from 1.70–1.81 Å. In the second V5+ site, V5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of V–O bond distances ranging from 1.72–1.77 Å. Mn2+ is bonded in a square co-planar geometry to four O2- atoms. There are two shorter (2.04 Å) and two longer (2.11 Å) Mn–O bond lengths. There are two inequivalent Pb2+ sites. In the first Pb2+ site, Pb2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Pb–O bond distances ranging from 2.60–2.97 Å. In the second Pb2+ site, Pb2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Pb–O bond distances ranging from 2.39–2.98 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one V5+, one Mn2+, and one Pb2+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one V5+ and two Pb2+ atoms. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one V5+ and two Pb2+ atoms. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one V5+ and three Pb2+ atoms. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to one V5+ and one Pb2+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to one V5+, two equivalent Mn2+, and one Pb2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mn2V2PbO10 by Materials Project

V2Mn2PbO10 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. V+4.50+ is bonded to four O2- atoms to form VO4 tetrahedra that share corners with three equivalent PbO6 octahedra and corners with four equivalent MnO6 octahedra. The corner-sharing octahedra tilt angles range from 47–69°. There are a spread of V–O bond distances ranging from 1.67–1.84 Å. Mn+4.50+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with two equivalent PbO6 octahedra, corners with four equivalent VO4 tetrahedra, and edges with two equivalent MnO6 octahedra. The corner-sharing octahedral tilt angles are 60°. There are a spread of Mn–O bond distances ranging from 1.88–2.04 Å. Pb2+ is bonded to six O2- atoms to form distorted PbO6 octahedra that share corners with four equivalent MnO6 octahedra and corners with six equivalent VO4 tetrahedra. The corner-sharing octahedral tilt angles are 60°. There are four shorter (2.56 Å) and two longer (2.68 Å) Pb–O bond lengths. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a water-like geometry to two equivalent Mn+4.50+ atoms. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one V+4.50+ and two equivalent Mn+4.50+ atoms. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to one V+4.50+, one Mn+4.50+, and one Pb2+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one V+4.50+ and one Pb2+ atom.

36 MATERIALS SCIENCE↗