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DOE OSTI2020

Materials Data on EuAgO2 by Materials Project

EuAgO2 crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. there are two inequivalent Eu3+ sites. In the first Eu3+ site, Eu3+ is bonded to six equivalent O2- atoms to form distorted edge-sharing EuO6 octahedra. All Eu–O bond lengths are 2.37 Å. In the second Eu3+ site, Eu3+ is bonded to six equivalent O2- atoms to form distorted edge-sharing EuO6 octahedra. All Eu–O bond lengths are 2.37 Å. Ag1+ is bonded in a linear geometry to two equivalent O2- atoms. There are one shorter (2.05 Å) and one longer (2.06 Å) Ag–O bond lengths. O2- is bonded to three equivalent Eu3+ and one Ag1+ atom to form a mixture of corner and edge-sharing OEu3Ag tetrahedra.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on EuAgO3 by Materials Project

EuAgO3 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 AgO6 octahedra. All Eu–O bond lengths are 2.89 Å. Ag3+ is bonded to six equivalent O2- atoms to form AgO6 octahedra that share corners with six equivalent AgO6 octahedra and faces with eight equivalent EuO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Ag–O bond lengths are 2.04 Å. O2- is bonded in a distorted linear geometry to four equivalent Eu3+ and two equivalent Ag3+ atoms.

36 MATERIALS SCIENCE↗