Crystal structure, optical characterization, conduction and relaxation mechanisms of a new hybrid compound (C <sub>6</sub> H <sub>9</sub> N <sub>2</sub> ) <sub>2</sub> [Sb <sub>2</sub> Cl <sub>8</sub> ]
I. Chaabane, Walid Rekik, Houcine Ghalla, Mustapha Zaghrioui, Jérôme Lhoste, Abderrazek Oueslati
Abstract
through N-H⋯Cl hydrogen bonds. Optical absorption measurements showed a semiconductor behavior with a band gap of approximately 3.57 eV. In addition, DFT calculations were performed to investigate the absorption spectrum, wavelength, and HOMO-LUMO gap. The analysis of complex impedance spectra shows that the electrical conductivity of the sample is strongly frequency and temperature dependent, indicating a relaxation phenomenon and semiconductor-type behavior. Dielectric data obtained from complex impedance spectroscopy and ac conductivity with the use of the Maxwell-Wagner equivalent circuit model, and the universal power law have been investigated to explore the basic components of the electronic transport and relaxation process in our material.