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Synthesis and Characterization of L-Alanine Sodium Bromide: A New Semi Organic Nonlinear Optical Material

ABSTRACT A new semi organic nonlinear optical crystal, L-Alanine Sodium Bromide has been grown from aqueous solution by slow evaporation technique. L-Alanine and Sodium Bromide were used in the ratio 1:1 for synthesis. Crystals of size 20×10×4 mm 3 have been obtained in 30 days. Characterizations were carried out to study the structural, optical and mechanical properties of the grown crystals. Single crystal X- ray diffraction analysis shows that the grown crystal belongs to the monoclinic system. The crystalline nature and its various planes of reflections were observed by the powder XRD analysis. The chemical compositions of the grown crystals were determined by FTIR spectral analysis. The transmittance, absorption and reflection of the crystal were studied by UV- Visible spectrometer. The mechanical properties of the grown crystals were studied using Vickers micro hardness measurement. Keywords: Characterization, Slow evaporation, Crystal structure, Nonlinear material.