PuCoAl crystallizes in the hexagonal P-62m space group. Pu(1) is bonded in a 5-coordinate geometry to one Co(2), four equivalent Co(1), and six equivalent Al(1) atoms. There are two inequivalent Co sites. In the first Co site, Co(2) is bonded in a 9-coordinate geometry to three equivalent Pu(1) and six equivalent Al(1) atoms. In the second Co site, Co(1) is bonded in a 9-coordinate geometry to six equivalent Pu(1) and three equivalent Al(1) atoms. Al(1) is bonded in a 12-coordinate geometry to six equivalent Pu(1), two equivalent Co(1), two equivalent Co(2), and two equivalent Al(1) atoms.
PuCoAl crystallizes in the hexagonal P-62m space group. Pu(1) is bonded in a 5-coordinate geometry to one Co(2), four equivalent Co(1), and six equivalent Al(1) atoms. The Pu(1)-Co(2) bond length is 2.73 Å. All Pu(1)-Co(1) bond lengths are 2.78 Å. There are two shorter (2.94 Å) and four longer (3.12 Å) Pu(1)-Al(1) bond lengths. There are two inequivalent Co sites. In the first Co site, Co(2) is bonded in a 9-coordinate geometry to three equivalent Pu(1) and six equivalent Al(1) atoms. All Co(2)-Al(1) bond lengths are 2.53 Å. In the second Co site, Co(1) is bonded in a 9-coordinate geometry to six equivalent Pu(1) and three equivalent Al(1) atoms. All Co(1)-Al(1) bond lengths are 2.49 Å. Al(1) is bonded in a 12-coordinate geometry to six equivalent Pu(1), two equivalent Co(1), two equivalent Co(2), and two equivalent Al(1) atoms. Both Al(1)-Al(1) bond lengths are 2.63 Å.