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GROWTH AND CHARACTERIZATION OF BIS-THIOUREA STRONTIUM CHLORIDE SINGLE CRYSTALS

R. R. HAJIYANI

Crystal Growth Laboratory, Department of Physics, Saurashtra University, Rajkot 360 005, India

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D. J. DAVE

Crystal Growth Laboratory, Department of Physics, Saurashtra University, Rajkot 360 005, India

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C. K. CHAUHAN

Crystal Growth Laboratory, Department of Physics, Saurashtra University, Rajkot 360 005, India

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P. M. VYAS

Crystal Growth Laboratory, Department of Physics, Saurashtra University, Rajkot 360 005, India

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, and

M. J. JOSHI

Crystal Growth Laboratory, Department of Physics, Saurashtra University, Rajkot 360 005, India

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https://doi.org/10.1142/S0217984910022810Cited by:8 (Source: Crossref)

Abstract

Bis-thiourea strontium chloride was synthesized and single crystals were grown by the slow solvent evaporation technique using aqueous solvent. The solubility curve was obtained and the determination of the induction period as well as the evaluation of kinetic parameters of nucleation was carried out. The powder XRD analysis suggested orthorhombic crystal structure. The FT-IR spectrum confirmed the presence of various functional groups. The thermo-gravimetry analysis was carried out and the crystals were found to be stable up to 170°C. Applying Coats and Redferm relation to the thermo-gram, the kinetic and thermodynamic parameters of dehydration were calculated. The dielectric study was carried out in the frequency range of applied field from 500 Hz to 1 MHz. The variations of dielectric constant, dielectric loss, AC resistivity and AC conductivity were studied with frequency. It was found that the dielectric constant and the dielectric loss decreased as the frequency of applied field increased, whereas the AC resistivity increased as the frequency increased.

Keywords:

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