Hydrothermal synthesis and characterization of a zinc-cobalt phosphate microporous material

A new zinc-cobalt phosphate compound [Zn(4−x)Cox(PO4)2(HPO4)][C3H4N2]3 (x≈0.25) (1) has been hydrothermally synthesized in the presence of imidazole as the template and crystallizes in the triclinic space group P−1 with crystal data a=9.6077(7) Å, b=9.8674(7) Å, c=12.3793(9) Å, α=77.569(4)°, β=78.040(4)°, γ=68.191(4)°, V=1053.52(13) Å3, Z=2. Compound 1 exhibits an infinite two-dimensional layered structure, which is built up of {M8P6O23} structural unit formed by vertex-sharing MO4, MO2N2, MO3N, PO4 and PO3(OH) (M=Zn, Co) moieties. A study of magnetic measurements indicates compound 1 has the well antiferromagnetic behavior.