Growth Structural and Spectral Studies on L-Proline Added Ammonium Dihydrogen Phosphate Single Crystals

Abstract

Single crystals of pure and L-proline added Ammonium Dihydrogen Phosphate (ADP) were grown from aqueous solutions, employing slow evaporation technique at room temperature.  The grown crystals were subjected to single crystal X- ray diffraction studies and powder X-ray diffraction studies to study their structural characteristics. Fourier transform infrared (FTIR) spectral analysis was performed to identify the presence of various functional groups in the crystals. The UV-Visible-NIR spectral analysis was carried out to confirm the improvement in the transparency of the ADP crystal on the addition of L-proline. The second harmonic generation (SHG) efficiency was investigated to explore the enhancement in the nonlinear optical characteristics of the crystals. The studies performed have revealed the incorporation of L-proline into the lattice of  ADP crystal.