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Synthesis and structure of a chain aluminophosphate filled with [NH4] + and [H3NCH2CH2NH3] 2+ cations

Record type: Article

The compound [AIP(2)O(8)](3-)[NH3CH2CH2NH3](2+)[NH4](+) (designated ALPO-enA, where enA stands for ethylenediammonium and ammonium cations) has been synthesized from the non-aqueous system H3PO4-Al(Oi-Pr)(3)-NH2CH2CH2NH2-HOCH2 CH2OH-H2O. The structure of the compound has been characterized by single crystal X-ray diffraction to be orthorhombic with space group Peen and unit cell dimensions a 8.0330(10), b = 16.989(2), c = 8.740(2) Angstrom and Z = 4. The final R(1) and wR(2) values were 0.0309 and 0.0706. The structure consists of macroanionic [AlP2O8](3-) chains built up from AlO4 and PO4 tetrahedra, in which all AlO4 vertices are shared but each PO4 has two terminal P-O groups. The cations which balance the negative charges of the chains are [NH3CH2CH2NH3](2+) and [NH4](+), the latter being believed to arise from the fragmentation of the former during crystallization. Additional characterization of the compound by powder XRD, SEM, IR spectroscopy, inductively coupled plasma analysis (ICP), TGA, and DTA are also described.

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Citation

Gao, Qiuming, Chen, Jiesheng, Li, Shougui, Xu, Ruren, Thomas, John Meurig, Light, Mark and Hursthouse, Michael B. (1996) Synthesis and structure of a chain aluminophosphate filled with [NH4] + and [H3NCH2CH2NH3] 2+ cations Journal of Solid State Chemistry, 127, (2), pp. 145-150. (doi:10.1006/jssc.1996.0370).

More information

Published date: 1996
Keywords: aluminum phosphate, crystal-structure, molecular-sieves, alpo4- 5

Identifiers

Local EPrints ID: 39138
URI: http://eprints.soton.ac.uk/id/eprint/39138
ISSN: 0022-4596
PURE UUID: 54d268c3-4a82-45be-bfc5-d02516087cf3

Catalogue record

Date deposited: 18 Jul 2006
Last modified: 17 Jul 2017 15:37

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Contributors

Author: Qiuming Gao
Author: Jiesheng Chen
Author: Shougui Li
Author: Ruren Xu
Author: John Meurig Thomas
Author: Mark Light
Author: Michael B. Hursthouse

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