Crystal Structure of a New Hybrid Cyclohexaphosphate

[4-CH3C6H4CH2NH3]4Li2P6O18.4H2O

L. Khedhiri*

Laboratoire de Spectrométrie Physique. Université Joseph Fourier .B. P. 87, F-38402 Saint Martin d’Heres, France

* Corresponding author . E-mail : lamia.khedhiri@ujf-grenoble.fr

Received : 03 May 2004; revised version accepted : 18 June 2004

Abstract

Preparation and structural characterization by x-ray diffraction, are given for a new cyclohexaphosphate, [4-CH3C6H4CH2NH3]4Li2P6O18.4H2O. This compound crystallizes in the triclinic space group P, with cell parameters a = 12.816(3)Å, b = 9.625(7)Å, c = 19.529(9)Å, a?= 97.01(4)°, b = 100.10(5)°, g = 89.97(5)°, Z = 2, V = 2353(2)Å3. Its crystal structure is determined and refined to a final R = 0.042 for 10336 independent reflections. The atomic arrangement can be described as a layer organization built by P6O18 rings, Lithium and water molecules. Between these layers, the C8H12N+ organic cations are located, giving rise to a three-dimensional network.

Keywords: Hybrid compound; Cyclohexaphosphate; X-ray diffraction; Crystal structure.

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