Synthesis of two new aluminophosphate based layered materials using Tet-A as a structure-directing agent

A layered aluminofluorophosphate and a cobalt–aluminophosphate material have been prepared using the azamacrocycle meso-5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane (Tet-A) as a structure-directing agent (SDA). Both were synthesised using hydrothermal techniques and their structures solved using microcrystal X-ray diffraction. The first material, [F, Tet-A]-AlPO-1, has the molecular formula Al₁₀P₁₀O₄₀F₂C₁₆N₄H₃₈ and crystallises in the orthorhombic space group Pca2₁. Its inorganic layered structure is related to the AlPO-41 (AFO) zeolite structure type. The second material, [Co, Tet-A]-AlPO-2, has the formula Al₄(PO₄)₄(HPO₄)₂·[Co(C₁₆N₄H₃₆)]·C₁₆N₄H₃₈·2H₂O and crystallises in the triclinic space group P. This material contains a cobalt–Tet-A complex that is covalently bound to the inorganic framework and an uncoordinated Tet-A molecule that is hydrogen bonded to the framework.