Structural, Optical and Thermal Behaviour of L-Phenylalanine L-Phenylalaninium Perchlorate (LPAPCl) A Nonlinear Optical Single Crystal

Abstract

L-Phenylalanine L-Phenylalaninium Perchlorate (LPAPCl) - a nonlinear optical (NLO) single crystal is grown at room temperature using slow evaporation technique. The crystal found to be orthorhombic crystal system having non-centrosymmetry with P212121 space group. Powder X-ray Diffraction (XRD) pattern was compared with the simulated results. HOMO-LUMO analysis describes the energetic behaviour of LPAPCl. From the UV-Vis study, the band gap (Eg) is found to be 4.068eV. TGA curve indicates three states of weight loss. The weight loss observed in the TGA trace coincided with the DTA trace. The dielectric constant and loss for different frequencies were studied for the title compound.