Add time:07/19/2019         Source:sciencedirect.com

A chalcone, 1-(4-chloro phenyl)-3-(4-dimethylamino phenyl) prop-2-en-1-one, abbreviated as CDAC was synthesized by the Claisen–Schmidt condensation method and single crystals were grown by the slow evaporation technique at ambient temperature. The structural confirmation was done using 1H-NMR, FT-IR, powder XRD and single crystal XRD studies. The crystal crystallizes in the monoclinic space group P21/c with a=33.082(3) Å, b=14.4722(13) Å, c=6.0799(5) Å, α=90°, β=92.030(4)°, γ=90° and Z=8. The high temperature DSC shows a phase transition at temperature 141.53 °C that corresponds to the melting point of the crystal. This is confirmed in DTA study which shows an endothermic dip corresponding to this melting point. The optical studies were made with UV–visible and Z-scan techniques. The nonlinear absorption and nonlinear refraction coefficients of the sample were obtained by performing the Z-scan experimental measurements. The real and imaginary parts of third-order bulk susceptibility χ(3) were evaluated. The coefficient of nonlinear refraction (γ) of the compound is found to be negative as revealed by the signature of closed aperture data.

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