RbAc3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Rb(1) is bonded to twelve equivalent Ac(1) atoms to form RbAc12 cuboctahedra that share corners with twelve equivalent Rb(1)Ac12 cuboctahedra, edges with twenty-four equivalent Ac(1)Rb4Ac8 cuboctahedra, faces with six equivalent Rb(1)Ac12 cuboctahedra, and faces with twelve equivalent Ac(1)Rb4Ac8 cuboctahedra. Ac(1) is bonded to four equivalent Rb(1) and eight equivalent Ac(1) atoms to form AcRb4Ac8 cuboctahedra that share corners with twelve equivalent Ac(1)Rb4Ac8 cuboctahedra, edges with eight equivalent Rb(1)Ac12 cuboctahedra, edges with sixteen equivalent Ac(1)Rb4Ac8 cuboctahedra, faces with four equivalent Rb(1)Ac12 cuboctahedra, and faces with fourteen equivalent Ac(1)Rb4Ac8 cuboctahedra.
RbAc3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Rb(1) is bonded to twelve equivalent Ac(1) atoms to form RbAc12 cuboctahedra that share corners with twelve equivalent Rb(1)Ac12 cuboctahedra, edges with twenty-four equivalent Ac(1)Rb4Ac8 cuboctahedra, faces with six equivalent Rb(1)Ac12 cuboctahedra, and faces with twelve equivalent Ac(1)Rb4Ac8 cuboctahedra. All Rb(1)-Ac(1) bond lengths are 4.11 Å. Ac(1) is bonded to four equivalent Rb(1) and eight equivalent Ac(1) atoms to form AcRb4Ac8 cuboctahedra that share corners with twelve equivalent Ac(1)Rb4Ac8 cuboctahedra, edges with eight equivalent Rb(1)Ac12 cuboctahedra, edges with sixteen equivalent Ac(1)Rb4Ac8 cuboctahedra, faces with four equivalent Rb(1)Ac12 cuboctahedra, and faces with fourteen equivalent Ac(1)Rb4Ac8 cuboctahedra. All Ac(1)-Ac(1) bond lengths are 4.11 Å.