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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Eu2Pb2O7 by Materials Project

Eu2Pb2O7 crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Eu3+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are two shorter (2.30 Å) and six longer (2.52 Å) Eu–O bond lengths. Pb4+ is bonded to six equivalent O2- atoms to form distorted corner-sharing PbO6 octahedra. The corner-sharing octahedral tilt angles are 55°. All Pb–O bond lengths are 2.12 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Eu3+ and two equivalent Pb4+ atoms to form a mixture of distorted corner and edge-sharing OEu2Pb2 tetrahedra. In the second O2- site, O2- is bonded to four equivalent Eu3+ atoms to form a mixture of corner and edge-sharing OEu4 tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on EuPbO3 by Materials Project

EuPbO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Eu2+ 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 PbO6 octahedra. All Eu–O bond lengths are 3.03 Å. Pb4+ is bonded to six equivalent O2- atoms to form PbO6 octahedra that share corners with six equivalent PbO6 octahedra and faces with eight equivalent EuO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Pb–O bond lengths are 2.14 Å. O2- is bonded to four equivalent Eu2+ and two equivalent Pb4+ atoms to form a mixture of distorted edge, face, and corner-sharing OEu4Pb2 octahedra. The corner-sharing octahedra tilt angles range from 0–60°.

36 MATERIALS SCIENCE↗