Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Mn-O-Sb-Y”

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 Y3Mn2Sb3O14 by Materials Project

Mn2Y3Sb3O14 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Y3+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Y–O bond distances ranging from 2.31–2.60 Å. There are two inequivalent Mn2+ sites. In the first Mn2+ site, Mn2+ is bonded to six equivalent O2- atoms to form distorted MnO6 octahedra that share corners with six equivalent SbO6 octahedra. The corner-sharing octahedral tilt angles are 59°. All Mn–O bond lengths are 2.19 Å. In the second Mn2+ site, Mn2+ is bonded to eight O2- atoms to form distorted MnO8 hexagonal bipyramids that share edges with six equivalent SbO6 octahedra. There are two shorter (2.09 Å) and six longer (2.59 Å) Mn–O bond lengths. Sb5+ is bonded to six O2- atoms to form SbO6 octahedra that share corners with two equivalent MnO6 octahedra, corners with four equivalent SbO6 octahedra, and edges with two equivalent MnO8 hexagonal bipyramids. The corner-sharing octahedra tilt angles range from 44–59°. There is two shorter (1.96 Å) and four longer (2.02 Å) Sb–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to three equivalent Y3+ and one Mn2+ atom to form a mixture of corner and edge-sharing OY3Mn tetrahedra. In the second O2- site, O2- is bonded in a 4-coordinate geometry to one Y3+, one Mn2+, and two equivalent Sb5+ atoms. In the third O2- site, O2- is bonded to two equivalent Y3+, one Mn2+, and one Sb5+ atom to form a mixture of distorted corner and edge-sharing OY2MnSb tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Y2Mn3Sb3O14 by Materials Project

Y2Mn3Sb3O14 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Y3+ is bonded in a distorted body-centered cubic geometry to eight O2- atoms. There are a spread of Y–O bond distances ranging from 2.29–2.53 Å. There are three inequivalent Mn+2.33+ sites. In the first Mn+2.33+ site, Mn+2.33+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with six SbO6 octahedra. The corner-sharing octahedra tilt angles range from 49–55°. There are four shorter (1.98 Å) and two longer (2.15 Å) Mn–O bond lengths. In the second Mn+2.33+ site, Mn+2.33+ is bonded to eight O2- atoms to form distorted MnO8 hexagonal bipyramids that share edges with six SbO6 octahedra. There are a spread of Mn–O bond distances ranging from 2.13–2.61 Å. In the third Mn+2.33+ site, Mn+2.33+ is bonded in a distorted body-centered cubic geometry to eight O2- atoms. There are a spread of Mn–O bond distances ranging from 2.24–2.57 Å. There are two inequivalent Sb5+ sites. In the first Sb5+ site, Sb5+ is bonded to six O2- atoms to form SbO6 octahedra that share corners with two equivalent MnO6 octahedra, corners with four equivalent SbO6 octahedra, and edges with two equivalent MnO8 hexagonal bipyramids. The corner-sharing octahedra tilt angles range from 47–55°. There is two shorter (1.95 Å) and four longer (2.01 Å) Sb–O bond length. In the second Sb5+ site, Sb5+ is bonded to six O2- atoms to form SbO6 octahedra that share corners with two equivalent MnO6 octahedra, corners with four SbO6 octahedra, and edges with two equivalent MnO8 hexagonal bipyramids. The corner-sharing octahedra tilt angles range from 47–49°. There is two shorter (1.98 Å) and four longer (2.01 Å) Sb–O bond length. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Y3+ and two Mn+2.33+ atoms to form OY2Mn2 tetrahedra that share corners with six OY2Mn2 tetrahedra and an edgeedge with one OY2MnSb tetrahedra. In the second O2- site, O2- is bonded to two equivalent Y3+, one Mn+2.33+, and one Sb5+ atom to form a mixture of distorted corner and edge-sharing OY2MnSb tetrahedra. In the third O2- site, O2- is bonded in a 4-coordinate geometry to two Mn+2.33+ and two equivalent Sb5+ atoms. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to one Y3+, two Mn+2.33+, and one Sb5+ atom. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to one Y3+, one Mn+2.33+, and two Sb5+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Y2MnSbO7 by Materials Project

Y2MnSbO7 crystallizes in the orthorhombic Imma space group. The structure is three-dimensional. there are two inequivalent Y3+ sites. In the first Y3+ site, Y3+ is bonded to eight O2- atoms to form distorted YO8 hexagonal bipyramids that share edges with two equivalent YO8 hexagonal bipyramids, edges with two equivalent MnO6 octahedra, and edges with four equivalent SbO6 octahedra. There are a spread of Y–O bond distances ranging from 2.22–2.52 Å. In the second Y3+ site, Y3+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Y–O bond distances ranging from 2.26–2.56 Å. Mn3+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with two equivalent MnO6 octahedra, corners with four equivalent SbO6 octahedra, and edges with two equivalent YO8 hexagonal bipyramids. The corner-sharing octahedra tilt angles range from 51–53°. There are two shorter (1.98 Å) and four longer (2.10 Å) Mn–O bond lengths. Sb5+ is bonded to six O2- atoms to form SbO6 octahedra that share corners with two equivalent SbO6 octahedra, corners with four equivalent MnO6 octahedra, and edges with four equivalent YO8 hexagonal bipyramids. The corner-sharing octahedra tilt angles range from 47–53°. There are four shorter (1.99 Å) and two longer (2.04 Å) Sb–O bond lengths. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to four Y3+ atoms to form OY4 tetrahedra that share corners with twelve OY4 tetrahedra and edges with four equivalent OY2MnSb tetrahedra. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Y3+ and two equivalent Sb5+ atoms. In the third O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Y3+ and two equivalent Mn3+ atoms. In the fourth O2- site, O2- is bonded to two Y3+, one Mn3+, and one Sb5+ atom to form a mixture of distorted edge and corner-sharing OY2MnSb tetrahedra.

36 MATERIALS SCIENCE↗