Pu6Co crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Pu sites. In the first Pu site, Pu(1) is bonded in a 13-coordinate geometry to five equivalent Pu(1) and eight equivalent Pu(2) atoms. In the second Pu site, Pu(2) is bonded in a 2-coordinate geometry to four equivalent Pu(1) and two equivalent Co(1) atoms. Co(1) is bonded in a 10-coordinate geometry to eight equivalent Pu(2) and two equivalent Co(1) atoms.
Pu6Co crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Pu sites. In the first Pu site, Pu(1) is bonded in a 13-coordinate geometry to five equivalent Pu(1) and eight equivalent Pu(2) atoms. There is one shorter (2.90 Å) and four longer (3.31 Å) Pu(1)-Pu(1) bond lengths. There are a spread of Pu(1)-Pu(2) bond distances ranging from 2.86-3.45 Å. In the second Pu site, Pu(2) is bonded in a 2-coordinate geometry to four equivalent Pu(1) and two equivalent Co(1) atoms. Both Pu(2)-Co(1) bond lengths are 2.80 Å. Co(1) is bonded in a 10-coordinate geometry to eight equivalent Pu(2) and two equivalent Co(1) atoms. Both Co(1)-Co(1) bond lengths are 2.59 Å.