Ni2P crystallizes in the hexagonal P-62m space group. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 5-coordinate geometry to one P(2) and four equivalent P(1) atoms. In the second Ni site, Ni(2) is bonded to two equivalent P(1) and two equivalent P(2) atoms to form a mixture of distorted corner and edge-sharing NiP4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded in a 9-coordinate geometry to three equivalent Ni(2) and six equivalent Ni(1) atoms. In the second P site, P(2) is bonded in a 9-coordinate geometry to three equivalent Ni(1) and six equivalent Ni(2) atoms.
Ni2P crystallizes in the hexagonal P-62m space group. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 5-coordinate geometry to one P(2) and four equivalent P(1) atoms. The Ni(1)-P(2) bond length is 2.33 Å. All Ni(1)-P(1) bond lengths are 2.44 Å. In the second Ni site, Ni(2) is bonded to two equivalent P(1) and two equivalent P(2) atoms to form a mixture of distorted corner and edge-sharing NiP4 tetrahedra. Both Ni(2)-P(1) bond lengths are 2.19 Å. Both Ni(2)-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 9-coordinate geometry to three equivalent Ni(2) and six equivalent Ni(1) atoms. In the second P site, P(2) is bonded in a 9-coordinate geometry to three equivalent Ni(1) and six equivalent Ni(2) atoms.