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Title
| - Dielectric Spectroscopy of the Room Temperature Molten Salt Ethylammonium Nitrate
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Abstract
| - The complex permittivity of ethylammonium nitrate has been measured as a function of frequency between3 MHz and 40 GHz at eight temperatures between 288.15 and 353.15 K. The spectra are well represented bya sum of a conductivity term and a relaxation spectral function that reflects an unsymmetrical relaxation timedistribution. Parameter values are given for the Cole−Davidson term and the Kohlrausch−Williams−Wattsmodel. Molecular mechanisms in conformance with an unsymmetrical relaxation time distribution are discussed.The dominant relaxation process with a relaxation frequency in the accessible range can be explained by theformation of a small amount of dipolar ion complexes. The values for the extrapolated high-frequencypermittivity indicate a further relaxation process, well above the frequency range of measurements, which islikely to reflect modes of motions of the cation and anion lattices relative to one another.
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