Synthesis and Structure of a One‐Dimensional Aluminum Phosphate, [NH3(CH2)2NH2(CH2)3NH3]3+ ∞1[Al(PO4)2]3—

A one-dimensional aluminum phosphate, [NH 3 (CH 2 ) 2 NH 2 (CH 2 ) 3 NH 3 ] 3+1 ∞ [Al(PO 4 ) 2 ] 3- , has been synthesized hydrothermally in the presence of N-(2-Aminoethyl-)1, 3-diaminopropane (AEDAP) and its structure determined by single crystal X-ray diffraction. Crystal data: space group = Pbca (no. 61), a = 16.850(2), b = 8.832(1), c = 17.688(4)A, V = 2632.4(2)A 3 , Z = 8, R 1 = 0.0389 [5663 observed reflections with I > 2σ(I)]. The structure consists of anionic 1 ∞ [Al(PO 4 ) 2 ] 3- chains built up from AlO 4 and PO 4 tetrahedra, in which all the AlO 4 vertices are shared and each PO 4 tetrahedron possesses two terminal P=O linkages. The cations, which balances the negative charge of the chains, are located in between the chains and interact with the oxygen atoms through strong N-H···O hydrogen bonds. Additional characterization of the compound by powder XRD and MAS-NMR has also been performed and described.

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