La6Co13Pb crystallizes in the tetragonal I4/mcm space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 13-coordinate geometry to four equivalent Co(2), four equivalent Co(3), four equivalent Co(4), and one Pb(1) atom. In the second La site, La(2) is bonded in a 6-coordinate geometry to one Co(3), three equivalent Co(4), and two equivalent Pb(1) atoms. There are four inequivalent Co sites. In the first Co site, Co(3) is bonded in a 12-coordinate geometry to one La(2), two equivalent La(1), one Co(1), one Co(3), three equivalent Co(4), and four equivalent Co(2) atoms. In the second Co site, Co(4) is bonded in a 12-coordinate geometry to two equivalent La(1), three equivalent La(2), one Co(1), one Co(4), two equivalent Co(2), and three equivalent Co(3) atoms. In the third Co site, Co(1) is bonded to four equivalent Co(2), four equivalent Co(3), and four equivalent Co(4) atoms to form a mixture of face and corner-sharing CoCo12 cuboctahedra. In the fourth Co site, Co(2) is bonded to two equivalent La(1), one Co(1), two equivalent Co(4), three equivalent Co(2), and four equivalent Co(3) atoms to form distorted CoLa2Co10 cuboctahedra that share  a cornercorner with one Co(1)Co12 cuboctahedra, corners with three equivalent Co(2)La2Co10 cuboctahedra, faces with two equivalent Co(1)Co12 cuboctahedra, and faces with seven equivalent Co(2)La2Co10 cuboctahedra. Pb(1) is bonded in a distorted q6 geometry to two equivalent La(1) and eight equivalent La(2) atoms.
La6Co13Pb crystallizes in the tetragonal I4/mcm space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 13-coordinate geometry to four equivalent Co(2), four equivalent Co(3), four equivalent Co(4), and one Pb(1) atom. All La(1)-Co(2) bond lengths are 2.93 Å. All La(1)-Co(3) bond lengths are 3.14 Å. All La(1)-Co(4) bond lengths are 3.27 Å. The La(1)-Pb(1) bond length is 3.46 Å. In the second La site, La(2) is bonded in a 6-coordinate geometry to one Co(3), three equivalent Co(4), and two equivalent Pb(1) atoms. The La(2)-Co(3) bond length is 2.86 Å. There are two shorter (3.08 Å) and one longer (3.33 Å) La(2)-Co(4) bond length. Both La(2)-Pb(1) bond lengths are 3.44 Å. There are four inequivalent Co sites. In the first Co site, Co(3) is bonded in a 12-coordinate geometry to one La(2), two equivalent La(1), one Co(1), one Co(3), three equivalent Co(4), and four equivalent Co(2) atoms. The Co(3)-Co(1) bond length is 2.40 Å. The Co(3)-Co(3) bond length is 2.59 Å. All Co(3)-Co(4) bond lengths are 2.51 Å. There are two shorter (2.48 Å) and two longer (2.50 Å) Co(3)-Co(2) bond lengths. In the second Co site, Co(4) is bonded in a 12-coordinate geometry to two equivalent La(1), three equivalent La(2), one Co(1), one Co(4), two equivalent Co(2), and three equivalent Co(3) atoms. The Co(4)-Co(1) bond length is 2.42 Å. The Co(4)-Co(4) bond length is 2.59 Å. Both Co(4)-Co(2) bond lengths are 2.50 Å. In the third Co site, Co(1) is bonded to four equivalent Co(2), four equivalent Co(3), and four equivalent Co(4) atoms to form a mixture of face and corner-sharing CoCo12 cuboctahedra. All Co(1)-Co(2) bond lengths are 2.36 Å. In the fourth Co site, Co(2) is bonded to two equivalent La(1), one Co(1), two equivalent Co(4), three equivalent Co(2), and four equivalent Co(3) atoms to form distorted CoLa2Co10 cuboctahedra that share  a cornercorner with one Co(1)Co12 cuboctahedra, corners with three equivalent Co(2)La2Co10 cuboctahedra, faces with two equivalent Co(1)Co12 cuboctahedra, and faces with seven equivalent Co(2)La2Co10 cuboctahedra. There is one shorter (2.52 Å) and two longer (2.57 Å) Co(2)-Co(2) bond lengths. Pb(1) is bonded in a distorted q6 geometry to two equivalent La(1) and eight equivalent La(2) atoms.