Synthesis, growth and spectral, optical and thermal characterization studies on L-Tryptophan p-nitrophenol (LTPN) single crystals for NLO applications

The novel nonlinear optical single crystal of L-Tryptophan p-nitrophenol (LTPN) has
been successfully synthesized by taking the appropriate amount of L-Tryptophan and pnitrophenol.
The single crystals have been grown by slow evaporation solution growth
technique. The single crystal XRD studies confirmed that the grown crystal belongs to the
monoclinic system. The various functional groups presented in the crystal were confirmed by
FT-IR and 1H-NMR spectroscopic studies. The absorptions of the grown crystals were analyzed
using UV-Vis-NIR spectral studies. The thermal analysis was performed to study the thermal
stability of the grown crystals. The second harmonic generation behavior of L-Tryptophan pnitrophenol
crystal was tested by Kurtz–Perry powder technique.