[C9H20N][Al2(HPO4)2(PO4)]: AN ALUMINUM PHOSPHATE WITH A NEW LAYER TOPOLOGY

摘要

A new 2-D aluminophosphate, [C9H20N][Al2(HPO4)2(PO4)] has been synthesized under solvothermal conditions at 453 K in the presence of 2,2,6,6,- tetramethylpiperidine and the structure determined using RT single-crystal XRD data (Mr=483.16, triclinic, space group P-1, a=8.541(3), b=9.298(1), c=12.660(5) angstroms, alpha=73.26(2), beta=89.58(4), and gamma=87.70(2) degrees V=962.06 angstroms3, Z=2, R=3.88%, and Rw=4.47% for 2049 observed data (I>3(sigma(I))). The structure has a new framework topology and contains AlO4 and PO4 tetrahedra linked to generate layers containing 4- and 8-membered rings of alternating Al- and P-based polyhedra. The organic cations reside between the layers and are H bonded to the inorganic framework. The layer topology is closely related to that observed previously in the pyridine-containing AlPO, [C5H6N][Al2(HPO4)2(PO4)]. 32 refs.