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.

Growth and Spectroscopic Characterization of Urea Sulphamic Acid Crystal: A Second-Ordernonlinear Material

“…5 The attention of researchers turned towards organo-inorganic hybrid materials in recent years, in particular, the inorganic derivatives are often attributed to symmetric groups without an inversion center mostly to polar symmetry groups. 6,7 A strong inorganic sulphamic acid (SA) (H2NSO3H) is the monoamide of sulphamic acid while mixing it with water it exhibits Zwitterionic form and has large applications as anti-corrosive agent. 8,9 Urea (CH4N2O), an organic compound exhibits wide nonlinear optical coefficients, high laser damage threshold and a high degree of bifringence [10][11][12][13] .Urea is a biological natural compound typically found in the urine of mammals.…”