Abstract
The semicarbazone of p-dimethylamino benzaldehyde (SCPDB) is a potential organic nonlinear optical material. SCPDB has been synthesized and the solubility studies were carried out in the temperature range 30-60°C. Following the slow evaporation technique, single crystals of SCPDB have been grown and the unit cell parameters have been evaluated by single crystal x-ray diffraction technique. The UV-Vis-NIR transmittance spectrum was recorded in the range 200-1100nm. Fourier transform IR and Fourier transform Raman spectra were recorded in the range 400-4000 cm<sup>-1</sup> and the characteristic vibrational frequencies of the functional groups present in the system have been assigned. Second Harmonic Generation efficiency measurements were carried out using Nd:YAG laser.
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