Abstract
We report measurements of X-ray powder diffraction, vibrational study, the differential scanning calorimetry (DSC), and the electric properties of a made-up [C6H9N2]2CuCl4 sample. The alternative current (ac) conductivity of the compound [C6H9N2]2CuCl4 has been measured in the temperature range 356–398 K and the frequency range 209 Hz–5 MHz. The Cole-Cole (the imaginer part (Z′′) versus real part (Z′) of impedance complex) plots are well fitted to an equivalent circuit model which consists of a parallel combination of a bulk resistance (R) and constant phase elements (CPE). The single semicircle indicates only one primary mechanism for the electrical conduction within [C6H9N2]2CuCl4. The variation of the value of these elements with temperatures confirmed the result detected by DSC and dielectric measurements. Thus the conduction in the material is probably due to a hopping or a small polaron tunneling process.
Highlights
Organic-inorganic hybrid compounds can be designed to utilize synergistic interactions between the dissimilar components, which can yield new properties and/or an enhanced performance
We report measurements of X-ray powder diffraction, vibrational study, the differential scanning calorimetry (DSC), and the electric properties of a made-up [C6H9N2]2CuCl4 sample
The ColeCole (the imaginer part (Z ) versus real part (Z ) of impedance complex) plots are well fitted to an equivalent circuit model which consists of a parallel combination of a bulk resistance (R) and constant phase elements (CPE)
Summary
Organic-inorganic hybrid compounds can be designed to utilize synergistic interactions between the dissimilar components, which can yield new properties and/or an enhanced performance. The synthesized compound crystallizes in the monoclinic system (C2/c space group) with Z = 4 and the following unit cell dimensions: a = 11.313 (3) A , b = 12.272 (3) A , c = 14.264 (4) A , and β = 113.201 (17)◦ [11]. The crystal structure contains chains of cations C6H9N2+ alternating with stacks of tetrahedra anions of tetrachloridocuprate CuCl42− (Figure 1(a)). Both N– H· · · Cl and π-π stacking interactions cause the formation of a three-dimensional supramolecular architecture. The Raman spectrum of [C6H9N2]2CuCl4 sample is recorded on a Kaiser Optical System spectrometer model-Hololab 5000R in the region 80–2000 cm−1 at room temperature. The ac impedance data, |Z|, and phase angle were obtained in the frequency range 209 Hz– 5 MHz using TEGAM 3550 impedance analyzer over the temperature range 356–398 K
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