Materials Data on CaEuO2 by Materials Project
CaEuO2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Ca2+ is bonded to six equivalent O2- atoms to form CaO6 octahedra that share corners with six equivalent EuO6 octahedra, edges with six equivalent CaO6 octahedra, and edges with six equivalent EuO6 octahedra. The corner-sharing octahedral tilt angles are 3°. All Ca–O bond lengths are 2.44 Å. Eu2+ is bonded to six equivalent O2- atoms to form EuO6 octahedra that share corners with six equivalent CaO6 octahedra, edges with six equivalent CaO6 octahedra, and edges with six equivalent EuO6 octahedra. The corner-sharing octahedral tilt angles are 3°. All Eu–O bond lengths are 2.53 Å. O2- is bonded to three equivalent Ca2+ and three equivalent Eu2+ atoms to form a mixture of edge and corner-sharing OCa3Eu3 octahedra. The corner-sharing octahedral tilt angles are 0°.