Synthesis, crystal structure, thermal analysis and dielectric properties of (C8H12N)3SnCl6•Cl compound

A new compound of formula (C8H12N)(3)SnCl6 center dot Cl is obtained at room temperature by slow evaporation of aqueous solution. Structural analysis indicates that this compound crystallizes in the monoclinic system with P2(1)/C space group. The N-ZH center dot center dot center dot Cl hydrogen bonds between (C8H12N)(+) cations, Cl- anions and [SnCl6](2-) dianions contribute to the cohesion and the stability of the atomic arrangement. One phase transition is detected by differential thermal analysis at 330 K. Dielectric studies of this compound were studied in the frequency from 100 Hz to 1 MHz and a temperature ranging between 290 K and 380 K. The analysis of Nyquist plots are well fitted to an equivalent circuit consisting of series of combination of grains and grain boundary elements. The AC conductivity was studied using the following equation:sigma(Ac)(omega) = sigma s/1+tau(2)omega(2) + sigma(infinity)tau(2)omega(2)/1+tau(2)omega(2) + B omega(S). The temperature dependence of the power law exponent s and a.c conductivity sigma(ac) is reasonably interpreted by Correlated Barrier Hopping and Small Polaron Tunneling models. (C) 2016 Elsevier B.V. All rights reserved.