NdNi2P2 crystallizes in the tetragonal I4/mmm space group. Nd(1) is bonded in a 16-coordinate geometry to eight equivalent Ni(1) and eight equivalent P(1) atoms. Ni(1) is bonded to four equivalent Nd(1) and four equivalent P(1) atoms to form a mixture of distorted corner, edge, and face-sharing NiNd4P4 tetrahedra. P(1) is bonded in a 9-coordinate geometry to four equivalent Nd(1), four equivalent Ni(1), and one P(1) atom.
NdNi2P2 crystallizes in the tetragonal I4/mmm space group. Nd(1) is bonded in a 16-coordinate geometry to eight equivalent Ni(1) and eight equivalent P(1) atoms. All Nd(1)-Ni(1) bond lengths are 3.08 Å. All Nd(1)-P(1) bond lengths are 3.04 Å. Ni(1) is bonded to four equivalent Nd(1) and four equivalent P(1) atoms to form a mixture of distorted corner, edge, and face-sharing NiNd4P4 tetrahedra. All Ni(1)-P(1) bond lengths are 2.28 Å. P(1) is bonded in a 9-coordinate geometry to four equivalent Nd(1), four equivalent Ni(1), and one P(1) atom. The P(1)-P(1) bond length is 2.45 Å.