SYNTHESIS AND CRYSTAL-STRUCTURES OF 2 NOVEL ANIONIC ALUMINOPHOSPHATES- A ONE-DIMENSIONAL CHAIN, UT-7 ([AL3P5O20H](5-)[C7H13NH3-8 ([AL3P4O16](3-)[C4H7NH3+](2)[C5H10NH2+])(](5)), AND A LAYER CONTAINING 2 CYCLICAMINES, UT)

UT-7 and UT-8 (University of Toronto, structure numbers 7 and 8) are t wo novel aluminophosphate materials prepared under non-aqueous conditi ons. Their structures, extended in one and two dimensions, respectivel y, have been solved by single-crystal X-ray diffraction and characteri zed by a variety of methods including powder X-ray diffraction (PXRD), insitu high-temperature PXRD, thermogravimetric analysis (TGA), energ y dispersive X-ray analysis (EDX), and scanning electron microscopy (S EM). UT-7 ([Al3P5O20H](5-)[C7H13NH3+](5), triclinic space group <P(1)o ver bar>, Z = 2, a 10.118(3) Angstrom, b = 15.691(4) Angstrom, c 18.11 7(3) Angstrom, alpha = 72.91(2)degrees, beta = 85.18(2)degrees, gamma = 79.49(2)degrees) is built of polymeric one-dimensional chain units, hydrogen-bonded into anionic layers that are charge-compensated by int erlamellar cycloheptylammonium cations. UT-7 is isostructural to our p reviously discovered UT-3 chain structure, isolated in the analogous c yclopentylamine system. UT-8 ([Al3P4O16](3-).[C4H7NH3+](2)[C5H10NH2+], monoclinic space group P2(1), Z = 2, a = 8.993(4) Angstrom, b = 14.88 4(8) Angstrom, c = 9.799(9) Angstrom, beta = 103.52(3)degrees) is a tw o-dimensional net isostructural to several previously reported [Al3P4O 16](3-) layers. The interlayer region of UT-8 is occupied by two diffe rent cyclic organic amine species, namely piperidinium and cyclobutyla mmonium. To our knowledge, this is the first report of the crystal str ucture of an aluminophosphate material containing cyclobutylammonium o r a mixture of cyclic amines. Interestingly, UT-7 is observed to therm ally transform in the solid state to an as yet unknown layered materia l that can be independently synthesized in a similar synthetic system. In the same way as UT-3 transforms to the UT-4 layered phase, we beli eve UT-7 transforms to a layered material by means of a chain to layer transformation.