Synthesis and Characterization of L-Methioninium Nitrate Single Crystal for Nonlinear Optical Applications

Nonlinear optical crystal of L-methioninium nitrate was grown by slow evaporation method from aqueous solution at room temperature. The lattice parameters and crystal structure of the grown crystal were identified and confirmed using single crystal X-ray diffraction analysis. Fourier transform infrared spectroscopy analysis was made to study the vibrational functional groups present in the crystal. Molecular structure of the grown crystal was discussed using H NMR and C NMR studies. Optical absorption range of the grown crystal was measured by UV-VIS-NIR spectrophotometer. Thermal stability and decomposition of the grown crystal were studied using thermogravimetric and differential thermal analysis. Mechanical strength of the grown crystal was analyzed using Vickers microhardness tester. Nonlinear optical property of the crystal was confirmed by Kurtz and Perry powder technique.