Co2P crystallizes in the hexagonal P-62m space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 5-coordinate geometry to one P(1) and four equivalent P(2) atoms. In the second Co site, Co(2) is bonded to two equivalent P(1) and two equivalent P(2) atoms to form a mixture of distorted corner and edge-sharing CoP4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded in a 9-coordinate geometry to three equivalent Co(1) and six equivalent Co(2) atoms. In the second P site, P(2) is bonded in a 9-coordinate geometry to three equivalent Co(2) and six equivalent Co(1) atoms.
Co2P crystallizes in the hexagonal P-62m space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 5-coordinate geometry to one P(1) and four equivalent P(2) atoms. The Co(1)-P(1) bond length is 2.26 Å. All Co(1)-P(2) bond lengths are 2.43 Å. In the second Co site, Co(2) is bonded to two equivalent P(1) and two equivalent P(2) atoms to form a mixture of distorted corner and edge-sharing CoP4 tetrahedra. Both Co(2)-P(1) bond lengths are 2.24 Å. Both Co(2)-P(2) bond lengths are 2.15 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded in a 9-coordinate geometry to three equivalent Co(1) and six equivalent Co(2) atoms. In the second P site, P(2) is bonded in a 9-coordinate geometry to three equivalent Co(2) and six equivalent Co(1) atoms.