Abstract
L-Leucinium Oxalate, (abbreviated as LLO) an organic nonlinear optical crystal was grown from aqueous solution.
Transparent crystals of size 21mm × 5mm × 4mm were obtained. The grown crystals were characterized with single crystal
X-Ray diffraction. The Powder X – Ray Diffractogram of the crystal has been recorded and the various planes of reflections
are identified. The XRD studies confirm the crystalline nature of the complex. The chemical composition of LLO was
determined by carbon, hydrogen and nitrogen (CHN) analysis. The qualitative analysis on the crystal has been carried by
using Fourier Transform Infrared (FTIR) spectral measurements. The presence of hydrogen and carbon in the grown crystal
was confirmed by using proton and carbon nuclear magnetic resonance (NMR) spectral analyses. Optical behavior of the
crystal was studied using UV – Visible spectroscopy. The mechanical strength of the grown crystals was found by using
Vickers micro hardness test. The dielectric behavior of the crystal was determined at room temperature in the frequency
range of 70 Hz to 5 MHz. The thermal stability and decomposition of the crystal were studied by thermogravimetric analysis
(TGA) and Differential Scanning Calorimetry (DSC). The nonlinear optical property of the crystal was tested by Nd:YAG
laser source.
Keywords
Growth from solution, NLO materials, X-ray diffraction, Spectral studies, Thermal studies.
Citation
M. ANBUCHEZHIYAN, S. PONNUSAMY, C. MUTHAMIZHCHELVAN, Synthesis, characterization and nonlinear optical studies of L-Leucinium Oxalate: a single crystal, Optoelectronics and Advanced Materials - Rapid Communications, 3, 11, November 2009, pp.1161-1167 (2009).
Submitted at: April 24, 2009
Accepted at: Oct. 29, 2009