U6Co crystallizes in the tetragonal I4/mcm space group. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 2-coordinate geometry to four equivalent U(2) and two equivalent Co(1) atoms. In the second U site, U(2) is bonded in a distorted T-shaped geometry to five equivalent U(2) and eight equivalent U(1) atoms. Co(1) is bonded in a 10-coordinate geometry to eight equivalent U(1) and two equivalent Co(1) atoms.
U6Co crystallizes in the tetragonal I4/mcm space group. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 2-coordinate geometry to four equivalent U(2) and two equivalent Co(1) atoms. There are a spread of U(1)-U(2) bond distances ranging from 2.80-3.32 Å. Both U(1)-Co(1) bond lengths are 2.78 Å. In the second U site, U(2) is bonded in a distorted T-shaped geometry to five equivalent U(2) and eight equivalent U(1) atoms. There is one shorter (2.72 Å) and four longer (3.22 Å) U(2)-U(2) bond lengths. Co(1) is bonded in a 10-coordinate geometry to eight equivalent U(1) and two equivalent Co(1) atoms. Both Co(1)-Co(1) bond lengths are 2.58 Å.