Growth and properties of organic nonlinear optical crystals: l-tartaric acid–nicotinamide and d-tartaric acid–nicotinamide

Nucleation, growth and characterization of L-tartaric acid—nicotinamide NLO crystals

“…The lattice parameter values of the crystal are shown in Table 1. The calculated lattice parameter values of LTN are consistent with the reported values [5].…”

“…It crystallizes in the monoclinic system with the space group P2 1 . The transmission range (280-1900 nm) and intense SHG signals from the crystal being better than KDP were reported [5]. However, its detailed crystal growth informations are not adequate.…”

“…These molecules are usually linked through the hydrogen bond [4]. L-Tartaric acid--Nicotinamide (LTN, C 20 H 26 N 4 O 15 ) was found to be a new NLO material recently [5]. It crystallizes in the monoclinic system with the space group P2 1 .…”

Growth and properties of two new organic nonlinear optical crystals: Hydroxyethylammonium-l-tartrate monohydrate and hydroxyethylammonium-d-tartrate monohydrate

“…Organic materials attract much interest to chemists, material scientists, and optical physicists because of their superior performance with respect to NLO properties such as the large NLO coefficient, ultrafast nonlinear response time, and high optical damage threshold [1][2][3][4][5]. Because of the ability of enhancing the macroscopic nonlinearity in a synergistic mode and initiating multidirectional hydrogen bonds, tartaric acid was chosen to synthesize nonlinear materials.…”

“…L-histidinium-L-tartrate hemihydrate [6], 2-amino-5-nitropyridinium monohydrogen L-tartrate [7], L-lysine-L-tartaric acid [8], p-nitroaniline-L-tartaric Acid [9], urea-tartaric acid [10], and 2,4,6-triamino-1,3,5-triazin-1,3-ium tartrate monohydrate [11] are a few such compounds reported. By consideration of the possibility of using tartaric acid with two enantiomers to generate some new materials, we synthesized a series of compounds of L&D tartaric acid in our laboratory to compare their properties [5]. In this area, the two organic NLO crystals hydroxyethylammonium-L-tartrate monohydrate (HALT) and hydroxyethylammonium-D-tartrate monohydrate (HADT) are typical examples.…”