Synthesis, Growth and Characterization of Pure and Metal Doped L-Histidine Bromide (LHB) Single Crystals

Single crystals of metal (Cu2+ and Mg2+) doped L-histidine bromide (LHB) salts were synthesized and single crystals of synthesized salts were grown from aqueous solutions by isothermal slow evaporation technique. Structural studies on the grown crystals were carried out by single crystal XRD analysis and found that the grown crystals crystallize in orthorhombic structure. Fourier transform infrared (FTIR) spectroscopy and thermal analysis (TG/DTA) were performed to study the molecular vibrations and thermal behaviour of the crystals, respectively. The NLO activity of the grown crystal has been checked by second harmonic generation (SHG) test. Energy dispersive X-ray spectroscopy (EDX) study reveals the presence of metal in the doped LHB crystals