Effect of Substituent Position on the Properties of Chalcone Isomer Single Crystals
- 1 Crystal Growth Centre, Anna University, Chennai, India; 2Division of Physics, Vellore Institute of Technology, Chennai, India.
- 2 Crystal Growth Centre, Anna University, Chennai, India; 2Division of Physics, Vellore Institute of Technology, Chennai, India.
- 3 Crystal Growth Centre, Anna University, Chennai, India; 2Division of Physics, Vellore Institute of Technology, Chennai, India.
Abstract
This paper summarizes the synthesis, growth and the effect of the position of the substituent in the thienyl ring and also the properties of the grown chalcone crystals, 2-CTP and 3-CTP. The formation of compound is confirmed by the re - corded H 1 NMR spectra. A FT-IR spectrum confirms the presence of all functional groups in both of the crystals. Single crystal XRD reports that even though these two compounds crystallize in monoclinic crystal system, 2-CTP has centro - symmetric P2 1 /c space group and 3-CTP has non-centrosymmetric space group P2 1 . Thermal properties of grown crys - tals analyzed by TG/DTA study explain that the 3-CTP compound is slightly more stable than 2-CTP. The transparency of these isomers in the vis-IR region has been studied. Second and third order nonlinear optical properties of 3-CTP and 2-CTP crystals have been investigated by powder SHG and Z-scan technique respectively.
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