UCo2Si2 crystallizes in the tetragonal I4/mmm space group. U(1) is bonded in a 16-coordinate geometry to eight equivalent Co(1) and eight equivalent Si(1) atoms. Co(1) is bonded in a 8-coordinate geometry to four equivalent U(1) and four equivalent Si(1) atoms. Si(1) is bonded in a 9-coordinate geometry to four equivalent U(1), four equivalent Co(1), and one Si(1) atom.
UCo2Si2 crystallizes in the tetragonal I4/mmm space group. U(1) is bonded in a 16-coordinate geometry to eight equivalent Co(1) and eight equivalent Si(1) atoms. All U(1)-Co(1) bond lengths are 3.05 Å. All U(1)-Si(1) bond lengths are 3.07 Å. Co(1) is bonded in a 8-coordinate geometry to four equivalent U(1) and four equivalent Si(1) atoms. All Co(1)-Si(1) bond lengths are 2.28 Å. Si(1) is bonded in a 9-coordinate geometry to four equivalent U(1), four equivalent Co(1), and one Si(1) atom. The Si(1)-Si(1) bond length is 2.40 Å.