• Zid, F.
• Driss, A.
• Cherni, S.

Abstract

<jats:p>Coordination nickel pyrophosphate [Ni(H2P2O7)(C12H8N2)2]×2.5H2O (I) is hydrothermally synthesized and characterized by single crystal X-ray diffraction. The title compound crystallizes in the triclinic system, space group P-1, with cell parameters M = 640.07, a = 10.285(2) Å, b = 10.510(3) Å, c = 12.775(3) Å, α = 88.06(2)°, β = 77.87(2)°, γ = 89.26(2)°, V = 1349.2(5) Å3, Z = 2, R1[I &gt; 2σ(I)] = 0.0438, wR2[I &gt; 2σ(I)] = 0.1244. This compound displays a new structure of ladder-like 2D layers parallel to (010) consisting of [Ni(H2P2O7)(phen)2] entities with the distorted octahedral NiN4O2 coordination geometry arising from two chelating 1,10-phe­nanthroline ligands and diphosphate [H2P2O7] ligand bridged through π⋯π stacking interactions between the neighboring 1,10-phen ligands with interplanar distances of 4.425 Å and 4.525 Å. In the compound, the phen ligands bind in a bidentate fashion to the metal atoms and the ladder-like structure of the compound extends into a three-dimensional supramolecular array via hydrogen bonds (O4—H17…O5) between diphosphate groups, which delimits b axis tunnels where water molecules are located.</jats:p>

Topics

• impedance spectroscopy
• compound
• single crystal X-ray diffraction
• single crystal
• nickel
• Hydrogen
• space group