Synthesis and Characterization of 2-CH3CH2C6H4NH36P6O18⋅4H2OReport as inadecuate

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ISRN Materials ScienceVolume 2011 2011, Article ID 457924, 6 pages

Research Article

Laboratoire de Chimie des Matériaux, Faculté des Sciences de Bizerte, 7021 Zarzouna, Tunisia

Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia

Received 27 March 2011; Accepted 29 May 2011

Academic Editors: R. A. Dunlap and I.-S. Kim

Copyright © 2011 Houda Marouani et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Single crystals of 2-CH3CH2C6H4NH36P6O18⋅4H2O are synthesized in aqueous solution by the interaction of cyclohexaphosphoric acid and 2-ethylaniline. This compound crystallizes in the monoclinic system with P21-c space group the unit cell dimensions are: 𝑎=16.2204 Å, 𝑏=10.2205 Å, 𝑐=20.3284 Å, 𝛽=113.243∘, 𝑍=2, and 𝑉=3096.518 Å

. The atomic arrangement can be described by layers formed by cyclohexaphosphate anions P6O6-18 and water molecules connected by hydrogen bonds O–H⋯O. These inorganic layers are developed around bc planes at 𝑥=1-2 and are interconnected by the H-bonds created by ammonium groups of organic cations. All the hydrogen bonds, the van der Waals contacts and electrostatic interactions between the different entities give rise to a three-dimensional network in the structure and add stability to this compound. The thermal behaviour and the IR spectroscopic studies of this new cyclohexaphosphate are discussed.

Author: Houda Marouani, Salem Slayyem Al-Deyab, and Mohamed Rzaigui



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