RbTlO2 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 Tl(1)O6 octahedra, edges with six equivalent Rb(1)O6 octahedra, and edges with six equivalent Tl(1)O6 octahedra. The corner-sharing octahedral tilt angles are 15°. Tl(1) is bonded to six equivalent O(1) atoms to form TlO6 octahedra that share corners with six equivalent Rb(1)O6 octahedra, edges with six equivalent Rb(1)O6 octahedra, and edges with six equivalent Tl(1)O6 octahedra. The corner-sharing octahedral tilt angles are 15°. O(1) is bonded to three equivalent Rb(1) and three equivalent Tl(1) atoms to form a mixture of edge and corner-sharing ORb3Tl3 octahedra. The corner-sharing octahedra are not tilted.
RbTlO2 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 Tl(1)O6 octahedra, edges with six equivalent Rb(1)O6 octahedra, and edges with six equivalent Tl(1)O6 octahedra. The corner-sharing octahedral tilt angles are 15°. All Rb(1)-O(1) bond lengths are 2.85 Å. Tl(1) is bonded to six equivalent O(1) atoms to form TlO6 octahedra that share corners with six equivalent Rb(1)O6 octahedra, edges with six equivalent Rb(1)O6 octahedra, and edges with six equivalent Tl(1)O6 octahedra. The corner-sharing octahedral tilt angles are 15°. All Tl(1)-O(1) bond lengths are 2.33 Å. O(1) is bonded to three equivalent Rb(1) and three equivalent Tl(1) atoms to form a mixture of edge and corner-sharing ORb3Tl3 octahedra. The corner-sharing octahedra are not tilted.