Materials Data on RbEuO2 by Materials Project

Abstract

RbEuO2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Rb1+ is bonded to six equivalent O2- atoms to form distorted RbO6 octahedra that share corners with six equivalent EuO6 octahedra, edges with six equivalent RbO6 octahedra, and edges with six equivalent EuO6 octahedra. The corner-sharing octahedral tilt angles are 16°. All Rb–O bond lengths are 2.95 Å. Eu3+ is bonded to six equivalent O2- atoms to form EuO6 octahedra that share corners with six equivalent RbO6 octahedra, edges with six equivalent RbO6 octahedra, and edges with six equivalent EuO6 octahedra. The corner-sharing octahedral tilt angles are 16°. All Eu–O bond lengths are 2.39 Å. O2- is bonded to three equivalent Rb1+ and three equivalent Eu3+ atoms to form a mixture of distorted edge and corner-sharing ORb3Eu3 octahedra. The corner-sharing octahedral tilt angles are 0°.