Abstract
The ionic salt [2(C5H6N2Cl)+], [CuCl4]2− complex of copper(II) has been synthesized and characterized. The X-ray diffraction analysis with a single crystal of this compound showed that the title compound (4-amino-2-chloropyridinium)2CuCl4 [(CAP)2CuCl4], crystallized at room temperature in the monoclinic system, space group C2/c (N°.15) and the following : a = 16.0064 (2) A; b = 7.7964 (10) A; c = 14.7240 (2) A; β = 102.497 (10)°; V = 1793.91 (4) A3 and Z = 4. The structure was solved by using 1,589 independent reflections down to R value of 0.021. The unit cell is made up of tetrachlorocuprate(II) anions and 4-amino-2-chloropyridinium cations linked together by an extensive hydrogen bond network of types N–H···Cl (N: pyridinium) and N–H···Cl (N: amine), and cation-lone pair of nitrogen element interactions. Solid state NMR spectra showed one and five isotropic resonances, 63Cu and 13C, respectively, confirming the solid state structure determined by X-ray diffraction. Impedance spectroscopy study, reported for single crystal, revealed that the conduction in the material was due to a hopping process. This work aims to reveal the thermal properties of a new copper(II) based organic–inorganic hybrid and the conductivity properties that these compounds exhibit.
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