High-temperature dehydration behavior and ionic conduction of 2,5-dimethylanilinium chloride monohydrate
作者： Sameh Guidara , Habib Feki , Younes Abid
DOI: 10.1016/J.JALLCOM.2016.02.110
关键词: Raman spectroscopy 、 Activation energy 、 Powder diffraction 、 Conductivity 、 Analytical chemistry 、 Dielectric spectroscopy 、 Chemistry 、 Chloride 、 Ionic conductivity 、 Crystal
摘要: Abstract The 2,5-dimethylanilinium chloride monohydrate compound is obtained by slow evaporation at room temperature. This material characterized DSC, X-Ray powder diffraction, Raman and impedance spectroscopy technique measured in the 2.10 2 –5.10 6 Hz frequency 292–422 K temperature ranges. calorimetric study has revealed three endothermic peaks 355 K, 392 K 403 K which defines four successive phases denoted I, II, III IV. first peak corresponds to water escape from crystal. After heating above dehydrates crystal space group changes non-centrosymmetric centrosymmetric symmetry. activation energy responsible for dielectric relaxation extracted modulus spectra found be almost same as value variation of dc conductivity I These results indicate that transport through ion hopping mechanism. influence dehydration process on was also discussed.
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