Investigations on the growth aspects and characterization of semiorganic nonlinear optical single crystals of l-histidine and its hydrochloride derivative

Structural, topographical, linear and non linear optical, electrical and mechanical properties of pure and barium @ amino hydrogen chloride monohydrate single crystal by Slow Evaporation Solution Method

“…The band at 959 cm -1 represents the O-H stretching of carboxylic acid [7]. The observed absorption peaks, well agree with the previous reported of LHC crystal [6,7,8] . However, slightly changed absorption peaks were observed in the Ba@ LHC crystal.…”

“…The powder XRD patterns of the LHC and Ba@LHC crystals are shown in Fig.1A. The obtained diffraction patterns of these crystals have been identified, which agree with the reported values [7,8].…”

“…However, it is noticed that there is a change in the intensity of the XRD pattern and a slight [8]. The peak at 1417 cm -1 is attributed to symmetric mode of carboxyl ion and C-N stretching [6].…”

“…Among the amino hydrogen chloride crystals, L -histidine hydrogen chloride monohydrate crystals (LHC) have been much attracted in crystal research technological field. L -histidine having the ability of imidazole moiety to act as a proton donor, a proton acceptor and a nucleophilic reagent and hydrochloric acid is a strong inorganic acid [6][7][8]. LHC is a semiorganic crystal which combine the positive aspects of organic (amino acid) and inorganic (HCl) materials resulting in desired nonlinear optical properties, high resistance, good mechanical hardness, low angular sensitivity, higher laser damage threshold [6,8].…”

“…L -histidine having the ability of imidazole moiety to act as a proton donor, a proton acceptor and a nucleophilic reagent and hydrochloric acid is a strong inorganic acid [6][7][8]. LHC is a semiorganic crystal which combine the positive aspects of organic (amino acid) and inorganic (HCl) materials resulting in desired nonlinear optical properties, high resistance, good mechanical hardness, low angular sensitivity, higher laser damage threshold [6,8]. 2 Uptodate, there is no report on the structural, topographical, linear and nonlinear optical, electrical and mechanical properties of pure LHC and Ba@LHC crystal comparatively discussed.…”