Co3Al is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Co(1) is bonded to eight equivalent Co(1) and four equivalent Al(1) atoms to form CoAl4Co8 cuboctahedra that share corners with twelve equivalent Co(1)Al4Co8 cuboctahedra, edges with eight equivalent Al(1)Co12 cuboctahedra, edges with sixteen equivalent Co(1)Al4Co8 cuboctahedra, faces with four equivalent Al(1)Co12 cuboctahedra, and faces with fourteen equivalent Co(1)Al4Co8 cuboctahedra. Al(1) is bonded to twelve equivalent Co(1) atoms to form AlCo12 cuboctahedra that share corners with twelve equivalent Al(1)Co12 cuboctahedra, edges with twenty-four equivalent Co(1)Al4Co8 cuboctahedra, faces with six equivalent Al(1)Co12 cuboctahedra, and faces with twelve equivalent Co(1)Al4Co8 cuboctahedra.
Co3Al is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Co(1) is bonded to eight equivalent Co(1) and four equivalent Al(1) atoms to form CoAl4Co8 cuboctahedra that share corners with twelve equivalent Co(1)Al4Co8 cuboctahedra, edges with eight equivalent Al(1)Co12 cuboctahedra, edges with sixteen equivalent Co(1)Al4Co8 cuboctahedra, faces with four equivalent Al(1)Co12 cuboctahedra, and faces with fourteen equivalent Co(1)Al4Co8 cuboctahedra. All Co(1)-Co(1) bond lengths are 2.53 Å. All Co(1)-Al(1) bond lengths are 2.53 Å. Al(1) is bonded to twelve equivalent Co(1) atoms to form AlCo12 cuboctahedra that share corners with twelve equivalent Al(1)Co12 cuboctahedra, edges with twenty-four equivalent Co(1)Al4Co8 cuboctahedra, faces with six equivalent Al(1)Co12 cuboctahedra, and faces with twelve equivalent Co(1)Al4Co8 cuboctahedra.