Crystal structure and phase transition in the compound [C6H17N3]TlCl5.2H2O

Authors

  • Hiba Khili Laboratoire des Sciences des Matériaux et de l’Environnement, département de chimie, Faculté des Sciences de Sfax, BP 1171, 3018 Sfax
  • Najla Chaari Laboratoire des Sciences des Matériaux et de l’Environnement, département de chimie, Faculté des Sciences de Sfax, BP 1171, 3018 Sfax
  • Abdelaziz Koumina ENS de Marrakech, Département de physique, Université Cadi-Ayyad Marrakech
  • Slaheddine Chaabouni Laboratoire des Sciences des Matériaux et de l’Environnement, département de chimie, Faculté des Sciences de Sfax, BP 1171, 3018 Sfax

DOI:

https://doi.org/10.24297/jac.v8i1.4032

Keywords:

Organic–inorganic hybrid material, Crystal structure, Halogenothallates(III)

Abstract

The title compound 1-(2-ammonium-ethyl) piperaziniumpentachlorothallate (III) dihydrate crystallizes in the monoclinic system with space group Cm. The unit cell dimensions are: a = 12.786(5), b = 12.021(5), c = 10.566(5) Å, β = 93.469(5) °, with Z = 4. Its crystal structure was determined and refined down to R = 0.045. The structure of this compound consists of 1-(2-ammonium-éthyl) pipéraziniumcations and [Tl2Cl10]4- dimers. The arylammoniumcations are located between anions and connected to the halogen atoms by N-H…Cl hydrogen bonds. One phase transition at T = 320 K is detected and studied by differential scanning calorimetry, dielectric and impedance spectroscopy measurements. The evolution of the dielectric constant and dissipation factor as a function of temperature revealed the transition characterized by a strong jump in the conductivity plot. 

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Published

2016-12-20

How to Cite

Khili, H., Chaari, N., Koumina, A., & Chaabouni, S. (2016). Crystal structure and phase transition in the compound [C6H17N3]TlCl5.2H2O. JOURNAL OF ADVANCES IN CHEMISTRY, 8(1), 1508–1522. https://doi.org/10.24297/jac.v8i1.4032

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