The synthesis and characterization of a one-dimensional aluminophosphate: [C10N2H9] [Al(PO4)(PO2(OH)(2))]

A new one-dimensional aluminum phosphate has been synthesized under solvothermal conditions at 180 degrees C in the presence of 4,4'-dipyridine and the structure solved using room-temperature single-crystal S-rap diffraction data, ([C10N2H9](+)[H2AlP2O8](-), M(r)=376.13, triclinic, space group P-1, a=4.9169(9) Angstrom, b=10.696(3) Angstrom, gamma=14.660(8) Angstrom, alpha=107.84(3)degrees, beta=95.68(3)degrees, gamma=99.91(2)degrees, V=713.8(1) Angstrom(3), Z=2, 1626 observed data measured with (I>3(sigma(I)), R=4.56% and R(w)=5.42%). The structure consists of chains containing 4-membered rings of AlO4 and PO4 tetrahedra constituting a backbone from which hang ''pendant'' PO2(OH)(2) groups, The chains are held together by hydrogen bonding via the dipyridyl cations. (C) 1997 Academic Press.