NiP crystallizes in the orthorhombic Cmc2_1 space group. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 5-coordinate geometry to one P(2), two equivalent P(1), and two equivalent P(4) atoms. In the second Ni site, Ni(2) is bonded in a 5-coordinate geometry to one P(1), two equivalent P(2), and two equivalent P(3) atoms. In the third Ni site, Ni(3) is bonded in a 5-coordinate geometry to two equivalent P(2) and three equivalent P(3) atoms. In the fourth Ni site, Ni(4) is bonded in a 6-coordinate geometry to two equivalent P(4) and four equivalent P(1) atoms. There are four inequivalent P sites. In the first P site, P(2) is bonded in a 5-coordinate geometry to one Ni(1), two equivalent Ni(2), and two equivalent Ni(3) atoms. In the second P site, P(3) is bonded in a 5-coordinate geometry to two equivalent Ni(2) and three equivalent Ni(3) atoms. In the third P site, P(4) is bonded in a 6-coordinate geometry to two equivalent Ni(4) and four equivalent Ni(1) atoms. In the fourth P site, P(1) is bonded in a 5-coordinate geometry to one Ni(2), two equivalent Ni(1), and two equivalent Ni(4) atoms.
NiP crystallizes in the orthorhombic Cmc2_1 space group. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 5-coordinate geometry to one P(2), two equivalent P(1), and two equivalent P(4) atoms. The Ni(1)-P(2) bond length is 2.27 Å. There is one shorter (2.24 Å) and one longer (2.34 Å) Ni(1)-P(1) bond length. Both Ni(1)-P(4) bond lengths are 2.26 Å. In the second Ni site, Ni(2) is bonded in a 5-coordinate geometry to one P(1), two equivalent P(2), and two equivalent P(3) atoms. The Ni(2)-P(1) bond length is 2.25 Å. There is one shorter (2.24 Å) and one longer (2.29 Å) Ni(2)-P(2) bond length. There is one shorter (2.27 Å) and one longer (2.29 Å) Ni(2)-P(3) bond length. In the third Ni site, Ni(3) is bonded in a 5-coordinate geometry to two equivalent P(2) and three equivalent P(3) atoms. There is one shorter (2.25 Å) and one longer (2.28 Å) Ni(3)-P(2) bond length. There are a spread of Ni(3)-P(3) bond distances ranging from 2.24-2.30 Å. In the fourth Ni site, Ni(4) is bonded in a 6-coordinate geometry to two equivalent P(4) and four equivalent P(1) atoms. There is one shorter (2.27 Å) and one longer (2.29 Å) Ni(4)-P(4) bond length. There are two shorter (2.34 Å) and two longer (2.36 Å) Ni(4)-P(1) bond lengths. There are four inequivalent P sites. In the first P site, P(2) is bonded in a 5-coordinate geometry to one Ni(1), two equivalent Ni(2), and two equivalent Ni(3) atoms. In the second P site, P(3) is bonded in a 5-coordinate geometry to two equivalent Ni(2) and three equivalent Ni(3) atoms. In the third P site, P(4) is bonded in a 6-coordinate geometry to two equivalent Ni(4) and four equivalent Ni(1) atoms. In the fourth P site, P(1) is bonded in a 5-coordinate geometry to one Ni(2), two equivalent Ni(1), and two equivalent Ni(4) atoms.