Three-dimensional open-framework nickel aluminophosphate [NiAlP₂O₈][C₂N₂H₉]: Assembly of one-dimensional AlP₂O₈^3- chains through [NiO₅N] octahedra

A 3-D open-framework nickel aluminophosphate [NiAlP₂O₈][C₂N₂H₉] has been solvothermally synthesized using ethylene glycol as the solvent and ethylenediamine as the template. Its structure is assembled through 1-D AlP₂O₈^3- chains with corner-sharing 4-MRs via transition metal Ni²⁺ ions. The 1-D AlP₂O₈^3- chains are connected through octahedral Ni atoms, which are coordinated to the terminal oxygens of 1-D AlP₂O₈^3- chains and the amino groups of the template. Infinite Ni-O-Ni chains are formed along the [001] direction.