SYNTHESIS AND STRUCTURE CHARACTERIZATION OF PIPERAZINE-1,4-DIIUM TRIPHOSPHATE

Author: Smirani W.   Nasr C.   Rzaigui M.  

Publisher: Taylor & Francis Ltd

ISSN: 1042-6507

Source: Phosphorus, Sulfur, and Silicon and the Related Elements, Vol.179, Iss.11, 2004-11, pp. : 2195-2204

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Abstract

[C4N2H12]2HP3O10·H2O, a new hydrate organic cation monohydrogeno-triphosphate, has been synthesized and characterized by X-ray diffraction, IR spectroscopy, mass angle spinning (MAS), NMR, and thermal analysis. The title compound crystallizes in a monoclinic unit cell with a=11.072(5), b=12.324(2), c=13.122(5)Å,β=93.85(5)°, Z=4, V=1787(1)Å3, and a noncentrosymmetric space group P21(no. 4). Crystal structure is determined and refined to R=0.057 using 4262 independent reflections. The atomic arrangement can be described as a typical layers organization. Layers built by HP3O104−anions and water molecules are parallel to the (a, b) planes. Between these layers the piperazinium cations, which form hydrogen bonds with oxygen atoms of the triphosphate anion, are located.