Abstract
The Bis (4-acetylanilinium) tetrachloridozincate [C8H10NO]2[ZnCl4] compound was obtained by slow evaporation at room temperature and characterized by XRD. It is crystallized in an orthorhombic system (Cmca space group). The material was characterized by impedance spectroscopy technique measured in the 209Hz–5MHz frequency range from 423 to 498K. Besides, the Cole–Cole (Zʺ versus Z′) plots were well fitted to an equivalent circuit built up by a parallel combination of resistance (R), fractal capacitance (CPE) and capacitance (C). Furthermore, the AC conductivity was investigated as a function of temperature and frequency in the same range. The experimental results indicated that AC conductivity (σac) was proportional to AωS1+BωS2(0<s1<1 and 1<s2<2) and was also found to increase with the increase in temperature and frequency. The obtained results are discussed in terms of the correlated barrier hopping (CBH) model. An agreement between the experimental and theoretical results suggests that the AC conductivity behavior of [C8H10NO]2[ZnCl4] can be explained by CBH model. The contribution of single polaron hopping to AC conductivity in a present alloy was also studied.
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