A new Co 2(HPO 4) 2·H 2O has been hydrothermally synthesized firstly. Single crystal X-ray analysis indicates that this compound crystallizes in a hexagonal system, space group P6 5 with a=1.048 31(15) nm, b=1.048 31(15) nm, c=1.496 3(3) nm, α=90°, β=90°, γ=120°, V= 1.424 1(4) nm 3, μ=3.849 mm -1, Z=6, F(000)=960, D c=2.294 g/cm 3, R=0.072 1, wR= 0.212 1, S=1.182, Δρ max=1.671×10 3 e·nm -3 and (Δρ) min=-1.210×10 3 e·nm -3. Co 2(HPO 4) 2·H 2O is characterized by 1D 12-ring helical channels. Tetrahedral primary structure-building units of CoO 4 and PO 4 indicates the title compound has a zeotype framework.
A novel 3 D compound, [H 0.5 CoP 0.5 O 2.5 ], was hydrothermally synthesized and structurally characterized by singly crystal X ray diffraction, ICP, elemental analysis and IR spectra. The compound crystallizes in orthorhombic system, space group Pnnm with a =0.805 1(2) nm, b =0.838 09(13) nm, \{ c =\}0.595 0(2) nm, V =0.401(2) nm 3, Z=1, D =1.669 Mg/cm 3, R=0.049 1, wR =0.153 2.
