RbEu3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Rb(1) is bonded to twelve equivalent Eu(1) atoms to form RbEu12 cuboctahedra that share corners with twelve equivalent Rb(1)Eu12 cuboctahedra, edges with twenty-four equivalent Eu(1)Rb4Eu8 cuboctahedra, faces with six equivalent Rb(1)Eu12 cuboctahedra, and faces with twelve equivalent Eu(1)Rb4Eu8 cuboctahedra. Eu(1) is bonded to four equivalent Rb(1) and eight equivalent Eu(1) atoms to form EuRb4Eu8 cuboctahedra that share corners with twelve equivalent Eu(1)Rb4Eu8 cuboctahedra, edges with eight equivalent Rb(1)Eu12 cuboctahedra, edges with sixteen equivalent Eu(1)Rb4Eu8 cuboctahedra, faces with four equivalent Rb(1)Eu12 cuboctahedra, and faces with fourteen equivalent Eu(1)Rb4Eu8 cuboctahedra.
RbEu3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Rb(1) is bonded to twelve equivalent Eu(1) atoms to form RbEu12 cuboctahedra that share corners with twelve equivalent Rb(1)Eu12 cuboctahedra, edges with twenty-four equivalent Eu(1)Rb4Eu8 cuboctahedra, faces with six equivalent Rb(1)Eu12 cuboctahedra, and faces with twelve equivalent Eu(1)Rb4Eu8 cuboctahedra. All Rb(1)-Eu(1) bond lengths are 4.25 Å. Eu(1) is bonded to four equivalent Rb(1) and eight equivalent Eu(1) atoms to form EuRb4Eu8 cuboctahedra that share corners with twelve equivalent Eu(1)Rb4Eu8 cuboctahedra, edges with eight equivalent Rb(1)Eu12 cuboctahedra, edges with sixteen equivalent Eu(1)Rb4Eu8 cuboctahedra, faces with four equivalent Rb(1)Eu12 cuboctahedra, and faces with fourteen equivalent Eu(1)Rb4Eu8 cuboctahedra. All Eu(1)-Eu(1) bond lengths are 4.25 Å.