Crystal Growth and Characterization of an Organic Nonlinear Optical Material: L-Histidinium Maleate (LHM)

Abstract

Abstract-L-histidinium maleate, a new amino acid organic nonlinear optical material has been successfully grown from aqueous solution by slow solvent evaporation method. The grown crystal was subjected to single crystal X-ray diffraction study for the identification of the structural arrangement. The chemical composition of the grown crystal was estimated by Energy dispersive X-ray analysis. In order to confirm the molecular structure of the grown crystal, FT-NMR spectral analysis was carried out. The percentage of optical transmittance by the grown crystal was ascertained by UV-visible spectral study. The nonlinear optical property of the grown material was identified by the powder technique of Kurtz and Perry. The HR-SEM analysis shows the surface morphology of the grown crystal. The thermal stability of the grown crystal was found by differential thermal analysis. Index Terms-NLO, XRD, EDAX, FT-NMR, HR-SEM.