UCo2P2 crystallizes in the tetragonal P4/nmm space group. U(1) is bonded in a 18-coordinate geometry to four equivalent Co(2), five equivalent Co(1), four equivalent P(1), and five equivalent P(2) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a distorted single-bond geometry to five equivalent U(1), four equivalent Co(2), and one P(2) atom. In the second Co site, Co(2) is bonded in a distorted body-centered cubic geometry to four equivalent U(1) and four equivalent Co(1) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded in a 8-coordinate geometry to four equivalent U(1) and four equivalent P(2) atoms. In the second P site, P(2) is bonded in a distorted single-bond geometry to five equivalent U(1), one Co(1), and four equivalent P(1) atoms.
UCo2P2 crystallizes in the tetragonal P4/nmm space group. U(1) is bonded in a 18-coordinate geometry to four equivalent Co(2), five equivalent Co(1), four equivalent P(1), and five equivalent P(2) atoms. All U(1)-Co(2) bond lengths are 2.78 Å. There are four shorter (3.03 Å) and one longer (3.06 Å) U(1)-Co(1) bond length. All U(1)-P(1) bond lengths are 3.15 Å. There is one shorter (3.17 Å) and four longer (3.34 Å) U(1)-P(2) bond lengths. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a distorted single-bond geometry to five equivalent U(1), four equivalent Co(2), and one P(2) atom. All Co(1)-Co(2) bond lengths are 2.45 Å. The Co(1)-P(2) bond length is 2.07 Å. In the second Co site, Co(2) is bonded in a distorted body-centered cubic geometry to four equivalent U(1) and four equivalent Co(1) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded in a 8-coordinate geometry to four equivalent U(1) and four equivalent P(2) atoms. All P(1)-P(2) bond lengths are 2.26 Å. In the second P site, P(2) is bonded in a distorted single-bond geometry to five equivalent U(1), one Co(1), and four equivalent P(1) atoms.