Study of L-nitroarginine perchlorate and L-nitroarginine tetrafluoroborate crystals

Abstract In the present work, we report the results of vibrational spectroscopic (Fourier transform IR and Raman), UV-Vis transmission, thermal properties, and nonlinear optical activity of L-nitroarginine perchlorate (L-NNA·HClO 4 ) and L-nitroarginine tetrafluoroborate (L-NNA·HBF 4 ) crystals. The NLO activity of crystals was measured. All study data of crystals were compared with L-arginine perchlorates, L-arginine tetrafluroborates, and L-nitroarginine data. Bulk single crystals of L-NNA· HClO 4 and L-NNA·HBF 4 , semi-organic nonlinear optical (NLO) materials, have been grown from an aqueous solution.