Mu-17: a new member of the gallophosphate family prepared by the fluoride route

A new three-dimensional microporous fluorogallophosphate, named Mu-17, was obtained by hydrothermal synthesis in the presence of 3-(2-aminoethylamino) propylamine as organic template, using the fluoride route. Its structure wa s determined by single crystal X-ray diffraction. The symmetry is triclinic , space group P (1) over bar, with the following unit cell parameters: a = 10.283(11) Angstrom; b = 12.096(12) Angstrom; c = 16.91(2) Angstrom; alpha = 76.07(11)degrees; beta = 72.38(7)degrees and gamma = 65.20(7)degrees. The structure results from the connection of chains, built from [4(4)6(1)] Sma ll cage-like building units. The resulting framework displays a one dimensi onal channel system delimited by a non planar 12MR opening in the a directi on, occluding the protonated amine. This material was characterized by XRD, SEM,C-13, F-19 and P-31 solid state NMR spectroscopy, and also elemental a nd thermal analyses. (C) 2001 Editions scientifiques et medicales Elsevier SAS. All rights reserved.