Abstract
A new layered aluminophosphate denoted AlPO-AEPP has been synthesized under hydrothermal conditions using N-(2-aminoethyl)-piperazine (AEPP) as structure directing molecule. The compound, with the empirical formula Al 3 P 4 O 16 C 6 N 3 H 17 H 3 O crystallizes in the orthorhombic space group P2 12 12 1 (No. 19) with a=14.550(8) Å, b=16.163(8) Å, c=18.677(9) Å, Z=4, R 1=0.0253 and w R 2=0.0644. Inorganic sheets contain a 4×6 network previously found in a layered compound synthesized with 1,2-dimethylimidazole molecules. Layers stack in the ABAB sequence and are held together by doubly protonated organic molecules and H 3O + cations. AlPO-AEPP represents the second example of layered aluminophosphate for which protonated water acts as a co-template along with organic molecules.
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