Crystal growth and characterization of 2-(4-(dimethylamino) styryl)-benzothiazole: A potential organic nonlinear optical crystal

Research progress of an organic second-order nonlinear optical crystal 2-(4-(dimethylamino)styryl)-benzothiazole (DMASBT) was grown with slow cooling method and its performance characterization in different aspects were reported. It was found that the crystals had a high second harmonic generation efficiency of 9.8 times higher than that of KDP crystal. Crystal structure of the crystal was investigated by single crystal XRD . It was found that the crystal lattice is monoclinic . In addition, the crystal growth mechanism and intermolecular interaction were analyzed by chemical etching and Hirshfeld surface . The functional groups of the raw materials were determined by FT-IR, Raman, 1 H NMR and elemental analysis . UV–vis–NIR spectrum, dielectric properties under different frequencies, thermal stability, and photostability of the crystal in powder state were also studied.