RbLaO2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. Rb(1) is bonded to six equivalent O(1) atoms to form distorted RbO6 octahedra that share corners with six equivalent La(1)O6 octahedra, edges with six equivalent Rb(1)O6 octahedra, and edges with six equivalent La(1)O6 octahedra. The corner-sharing octahedral tilt angles are 15°. La(1) is bonded to six equivalent O(1) atoms to form LaO6 octahedra that share corners with six equivalent Rb(1)O6 octahedra, edges with six equivalent Rb(1)O6 octahedra, and edges with six equivalent La(1)O6 octahedra. The corner-sharing octahedral tilt angles are 15°. O(1) is bonded to three equivalent Rb(1) and three equivalent La(1) atoms to form a mixture of distorted corner and edge-sharing ORb3La3 octahedra. The corner-sharing octahedra are not tilted.
RbLaO2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. Rb(1) is bonded to six equivalent O(1) atoms to form distorted RbO6 octahedra that share corners with six equivalent La(1)O6 octahedra, edges with six equivalent Rb(1)O6 octahedra, and edges with six equivalent La(1)O6 octahedra. The corner-sharing octahedral tilt angles are 15°. All Rb(1)-O(1) bond lengths are 2.99 Å. La(1) is bonded to six equivalent O(1) atoms to form LaO6 octahedra that share corners with six equivalent Rb(1)O6 octahedra, edges with six equivalent Rb(1)O6 octahedra, and edges with six equivalent La(1)O6 octahedra. The corner-sharing octahedral tilt angles are 15°. All La(1)-O(1) bond lengths are 2.46 Å. O(1) is bonded to three equivalent Rb(1) and three equivalent La(1) atoms to form a mixture of distorted corner and edge-sharing ORb3La3 octahedra. The corner-sharing octahedra are not tilted.