UCoP2 is Parent of FeAs superconductors-derived structured and crystallizes in the tetragonal P4/nmm space group. U(1) is bonded to four equivalent Co(1), four equivalent P(1), and four equivalent P(2) atoms to form distorted UCo4P8 cuboctahedra that share corners with four equivalent U(1)Co4P8 cuboctahedra, corners with eight equivalent Co(1)U4P4 tetrahedra, edges with eight equivalent U(1)Co4P8 cuboctahedra, edges with four equivalent Co(1)U4P4 tetrahedra, and faces with four equivalent U(1)Co4P8 cuboctahedra. Co(1) is bonded to four equivalent U(1) and four equivalent P(2) atoms to form CoU4P4 tetrahedra that share corners with eight equivalent U(1)Co4P8 cuboctahedra, edges with four equivalent U(1)Co4P8 cuboctahedra, edges with four equivalent Co(1)U4P4 tetrahedra, and faces with four equivalent Co(1)U4P4 tetrahedra. 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(1) atoms. In the second P site, P(2) is bonded in a 8-coordinate geometry to four equivalent U(1) and four equivalent Co(1) atoms.
UCoP2 is Parent of FeAs superconductors-derived structured and crystallizes in the tetragonal P4/nmm space group. U(1) is bonded to four equivalent Co(1), four equivalent P(1), and four equivalent P(2) atoms to form distorted UCo4P8 cuboctahedra that share corners with four equivalent U(1)Co4P8 cuboctahedra, corners with eight equivalent Co(1)U4P4 tetrahedra, edges with eight equivalent U(1)Co4P8 cuboctahedra, edges with four equivalent Co(1)U4P4 tetrahedra, and faces with four equivalent U(1)Co4P8 cuboctahedra. All U(1)-Co(1) bond lengths are 3.05 Å. All U(1)-P(1) bond lengths are 2.85 Å. All U(1)-P(2) bond lengths are 2.86 Å. Co(1) is bonded to four equivalent U(1) and four equivalent P(2) atoms to form CoU4P4 tetrahedra that share corners with eight equivalent U(1)Co4P8 cuboctahedra, edges with four equivalent U(1)Co4P8 cuboctahedra, edges with four equivalent Co(1)U4P4 tetrahedra, and faces with four equivalent Co(1)U4P4 tetrahedra. All Co(1)-P(2) bond lengths are 2.25 Å. 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(1) atoms. All P(1)-P(1) bond lengths are 2.62 Å. In the second P site, P(2) is bonded in a 8-coordinate geometry to four equivalent U(1) and four equivalent Co(1) atoms.