Materials Data on BaEuO2 by Materials Project
BaEuO2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Ba2+ is bonded to six equivalent O2- atoms to form BaO6 octahedra that share corners with six equivalent EuO6 octahedra, edges with six equivalent BaO6 octahedra, and edges with six equivalent EuO6 octahedra. The corner-sharing octahedral tilt angles are 7°. All Ba–O bond lengths are 2.79 Å. Eu2+ is bonded to six equivalent O2- atoms to form EuO6 octahedra that share corners with six equivalent BaO6 octahedra, edges with six equivalent BaO6 octahedra, and edges with six equivalent EuO6 octahedra. The corner-sharing octahedral tilt angles are 7°. All Eu–O bond lengths are 2.56 Å. O2- is bonded to three equivalent Ba2+ and three equivalent Eu2+ atoms to form a mixture of corner and edge-sharing OBa3Eu3 octahedra. The corner-sharing octahedral tilt angles are 0°.