Synthesis of L-Proline-KCl and characterization of its non-linear optical properties

© 2015 Virtual Institute of Physics of the Foundation Horia Hulubei. All rights reserved. A new semiorganic material, L-Proline-KCl, was synthesized for the first time. Its solubility an metastable zone width in double distilled water were estimated. Employing a temperature reduction method, a crystal of size 16 x 6 x 5 mm3 was grown from aqueous solution. The cell dimensions obtained by single crystal X-ray diffraction studies reveal that the crystal belongs to the monoclinic system. UV-vis-NIR studies show that the crystal is transparent in the wavelength range of 300-1100nm. Second harmonic generation conversion efficiency found using the Kurtz an Perry method is about 0.2 times that of KDP. The thermal stability of the compound was determined by TG-DTA analyses of the specimen. The experimental results show that the crystal of L-proline-KCl is a good candidate for nonlinear optical applications, optical and thermal properties.