Cu3Sb is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Cu(1) is bonded to eight equivalent Cu(1) and four equivalent Sb(1) atoms to form CuCu8Sb4 cuboctahedra that share corners with twelve equivalent Cu(1)Cu8Sb4 cuboctahedra, edges with eight equivalent Sb(1)Cu12 cuboctahedra, edges with sixteen equivalent Cu(1)Cu8Sb4 cuboctahedra, faces with four equivalent Sb(1)Cu12 cuboctahedra, and faces with fourteen equivalent Cu(1)Cu8Sb4 cuboctahedra. Sb(1) is bonded to twelve equivalent Cu(1) atoms to form SbCu12 cuboctahedra that share corners with twelve equivalent Sb(1)Cu12 cuboctahedra, edges with twenty-four equivalent Cu(1)Cu8Sb4 cuboctahedra, faces with six equivalent Sb(1)Cu12 cuboctahedra, and faces with twelve equivalent Cu(1)Cu8Sb4 cuboctahedra.
Cu3Sb is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Cu(1) is bonded to eight equivalent Cu(1) and four equivalent Sb(1) atoms to form CuCu8Sb4 cuboctahedra that share corners with twelve equivalent Cu(1)Cu8Sb4 cuboctahedra, edges with eight equivalent Sb(1)Cu12 cuboctahedra, edges with sixteen equivalent Cu(1)Cu8Sb4 cuboctahedra, faces with four equivalent Sb(1)Cu12 cuboctahedra, and faces with fourteen equivalent Cu(1)Cu8Sb4 cuboctahedra. All Cu(1)-Cu(1) bond lengths are 2.76 Å. All Cu(1)-Sb(1) bond lengths are 2.76 Å. Sb(1) is bonded to twelve equivalent Cu(1) atoms to form SbCu12 cuboctahedra that share corners with twelve equivalent Sb(1)Cu12 cuboctahedra, edges with twenty-four equivalent Cu(1)Cu8Sb4 cuboctahedra, faces with six equivalent Sb(1)Cu12 cuboctahedra, and faces with twelve equivalent Cu(1)Cu8Sb4 cuboctahedra.