Synthesis and structure of a 2-D aluminophosphate Al3P4O16·3CH3CH2CH2NH3

Using n-propylamine as a template, a new two-dimensional aluminophosphate Al 3 P 4 O 16 ·3CH 3 CH 2 CH 2 NH 3 , 1 [space group P2 1 /n (no. 14), a=11.310(1) A, b=14.854(1) A, c=14.796(1) A, β=93.64(1)°, Z=4] is synthesised in an alcoholic system and the structure is solved using single-crystal X-ray diffraction data. The structure consists of tetrahedral AlO 4 and PO 3 (=O) which are linked alternatively to form macroanionic layers parallel to the (10) plane. The organic cations (C 3 H 7 NH 3 + ) are located in the interlayer regions and are connected to the oxgens of the layers by hydrogen bonding.The 2-D nets of compound 1 are constructed from 4.6.8-nets which resemble the 2-D nets (4.6.8) 1 (6.8.8) 1 in microporous AlPO 4 -21.