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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on EuSbO4 by Materials Project

EuSbO4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Eu3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Eu–O bond distances ranging from 2.31–2.89 Å. Sb5+ is bonded to six O2- atoms to form corner-sharing SbO6 octahedra. The corner-sharing octahedra tilt angles range from 37–46°. There are a spread of Sb–O bond distances ranging from 1.99–2.04 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one Eu3+ and two equivalent Sb5+ atoms. In the second O2- site, O2- is bonded in a 3-coordinate geometry to three equivalent Eu3+ and one Sb5+ atom. In the third O2- site, O2- is bonded to three equivalent Eu3+ and one Sb5+ atom to form a mixture of distorted corner and edge-sharing OEu3Sb tetrahedra. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Eu3+ and two equivalent Sb5+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on EuSbO3 by Materials Project

EuSbO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Eu3+ is bonded to twelve equivalent O2- atoms to form EuO12 cuboctahedra that share corners with twelve equivalent EuO12 cuboctahedra, faces with six equivalent EuO12 cuboctahedra, and faces with eight equivalent SbO6 octahedra. All Eu–O bond lengths are 2.98 Å. Sb3+ is bonded to six equivalent O2- atoms to form SbO6 octahedra that share corners with six equivalent SbO6 octahedra and faces with eight equivalent EuO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Sb–O bond lengths are 2.11 Å. O2- is bonded in a distorted linear geometry to four equivalent Eu3+ and two equivalent Sb3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Eu3SbO7 by Materials Project

Eu3SbO7 crystallizes in the orthorhombic C222_1 space group. The structure is three-dimensional. there are two inequivalent Eu3+ sites. In the first Eu3+ site, Eu3+ is bonded to seven O2- atoms to form distorted EuO7 pentagonal bipyramids that share corners with two equivalent SbO6 octahedra, a cornercorner with one EuO7 pentagonal bipyramid, edges with two equivalent SbO6 octahedra, and edges with three equivalent EuO7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 46–48°. There are a spread of Eu–O bond distances ranging from 2.27–2.59 Å. In the second Eu3+ site, Eu3+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Eu–O bond distances ranging from 2.38–2.75 Å. Sb5+ is bonded to six O2- atoms to form SbO6 octahedra that share corners with two equivalent SbO6 octahedra, corners with four equivalent EuO7 pentagonal bipyramids, and edges with four equivalent EuO7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 39°. There are four shorter (2.00 Å) and two longer (2.05 Å) Sb–O bond lengths. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded to four Eu3+ atoms to form a mixture of edge and corner-sharing OEu4 tetrahedra. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Eu3+ and two equivalent Sb5+ atoms. In the third O2- site, O2- is bonded in a 4-coordinate geometry to three Eu3+ and one Sb5+ atom. In the fourth O2- site, O2- is bonded to four Eu3+ atoms to form a mixture of edge and corner-sharing OEu4 tetrahedra. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to three Eu3+ and one Sb5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Eu3SbO7 by Materials Project

Eu3SbO7 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Eu3+ sites. In the first Eu3+ site, Eu3+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Eu–O bond distances ranging from 2.38–2.69 Å. In the second Eu3+ site, Eu3+ is bonded to seven O2- atoms to form distorted EuO7 pentagonal bipyramids that share corners with two equivalent SbO6 octahedra, a cornercorner with one EuO7 pentagonal bipyramid, edges with two equivalent SbO6 octahedra, and edges with three equivalent EuO7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 47°. There are a spread of Eu–O bond distances ranging from 2.28–2.59 Å. Sb5+ is bonded to six O2- atoms to form SbO6 octahedra that share corners with two equivalent SbO6 octahedra, corners with four equivalent EuO7 pentagonal bipyramids, and edges with four equivalent EuO7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 39°. There are four shorter (2.00 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 in a 4-coordinate geometry to three Eu3+ and one Sb5+ atom. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Eu3+ and two equivalent Sb5+ atoms. In the third O2- site, O2- is bonded to four Eu3+ atoms to form a mixture of corner and edge-sharing OEu4 tetrahedra. In the fourth O2- site, O2- is bonded to four Eu3+ atoms to form a mixture of corner and edge-sharing OEu4 tetrahedra.

36 MATERIALS SCIENCE↗