Dielectric spectroscopy study of the new compound [C12H17N2]2CdCl4 |
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Authors: | Iskandar Chaabane Faouzi Hlel Kamel Guidara |
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Affiliation: | 1.Laboratoire de l’état solide,Faculté des Sciences de Sfax,Sfax,Tunisia |
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Abstract: | The temperature dependence of the electrical conductivity of the compound 2,4,4-trimethyl-4,5-dihydro-3H-benzo[b] [1,4] diazepin-1-ium tetrachlorocadmiate in the different phases follows the Arrhenius law. The imaginary part of the permittivity constant is analyzed with the Cole–Cole formalism. In the temperature range 348–394 K, the activation energy of conductivity obtained from complex permittivity in regions I and II are, respectively, 1.03 and 0.33 eV, and E m (in regions I and II are, respectively, 0.97 and 0.36 eV) obtained from the modulus spectra is close, suggesting that the ion transport is probably due to a hopping mechanism. The Kohlrausch–Williams–Watts function, j(t) = exp( - ( fractttextKWW )b ) varphi (t) = exp left( { - {{left( {frac{t}{{{tau_{text{KWW}}}}}} right)}^beta }} right) , and the coupling model are utilized for analyzing electric modulus at various temperatures. The decreasing of β at 373 K is due to approaching the temperatures of change in the conduction mechanism of the sample. |
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