RbCaBr3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. Rb(1) is bonded to twelve equivalent Br(1) atoms to form RbBr12 cuboctahedra that share corners with twelve equivalent Rb(1)Br12 cuboctahedra, faces with six equivalent Rb(1)Br12 cuboctahedra, and faces with eight equivalent Ca(1)Br6 octahedra. Ca(1) is bonded to six equivalent Br(1) atoms to form CaBr6 octahedra that share corners with six equivalent Ca(1)Br6 octahedra and faces with eight equivalent Rb(1)Br12 cuboctahedra. The corner-sharing octahedra are not tilted. Br(1) is bonded in a linear geometry to four equivalent Rb(1) and two equivalent Ca(1) atoms.
RbCaBr3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. Rb(1) is bonded to twelve equivalent Br(1) atoms to form RbBr12 cuboctahedra that share corners with twelve equivalent Rb(1)Br12 cuboctahedra, faces with six equivalent Rb(1)Br12 cuboctahedra, and faces with eight equivalent Ca(1)Br6 octahedra. All Rb(1)-Br(1) bond lengths are 4.06 Å. Ca(1) is bonded to six equivalent Br(1) atoms to form CaBr6 octahedra that share corners with six equivalent Ca(1)Br6 octahedra and faces with eight equivalent Rb(1)Br12 cuboctahedra. The corner-sharing octahedra are not tilted. All Ca(1)-Br(1) bond lengths are 2.87 Å. Br(1) is bonded in a linear geometry to four equivalent Rb(1) and two equivalent Ca(1) atoms.