Studies on the optical, thermal, electrical and dielectric properties of 5-chloro-2(3H)benzoxazolone Picrate: a new nonlinear optical crystal

An organic single crystals of 5-chloro-2(3H)benzoxazolone Picrate (5C2BP) were grown by slow evaporation of solvent technique at ambient temperature using water and ethanol as mixed solvent. The grown 5C2BP crystals were subjected to single crystal XRD and powder XRD to know the unit cell parameters and crystallinity of the sample. Fourier transform infrared spectrum of the grown crystal confirmed the presence of various functional groups in the material. UV–vis–NIR spectrum was used to investigate the optical transparency of the grown crystal. Thermal behaviour was studied by thermogravimetric and differential thermal analysis and melting point was determined by differential scanning calorimetry. The frequency dependence of dielectric properties with different temperature and the DC electrical conductivity with different temperature was performed on the grown crystal. The nonlinear optical property was confirmed by second harmonic generation test using Nd:YAG laser of fundamental wavelength 1064 nm