Monocrystal growth and characterization study of α- and γ-polymorph of glycine to explore superior performance of γ-glycine crystal
2017; Taylor & Francis; Linguagem: Inglês
10.1080/14328917.2017.1329992
ISSN1433-075X
AutoresMohd Anis, Muthu Senthil Pandian, M.I. Baig, P. Ramasamy, G.G. Muley,
Tópico(s)Crystallography and molecular interactions
ResumoOptical quality single crystals of α- and γ-polymorph of glycine with respective dimension of 16 × 04 × 04 and 16 × 14 × 08 mm3 have been grown from slow solvent evaporation technique. The single crystal X-ray diffraction (XRD) study has been carried out to confirm the cell parameters, crystal structure and space group of grown polymorphs of glycine crystal. The powder XRD analysis has been performed to investigate the crystalline nature of γ-glycine crystal. The UV-visible spectral analysis has been carried out in the range of 200–900 nm to determine the optical transmittance and band gap of grown crystals. In Kurtz-Perry test, the second harmonic generation efficiency of γ-glycine crystal is found to be 1.4 times higher than KDP crystal material. The emission profile and electronic purity of grown crystals has been examined by means of photoluminescence study. The differential thermal analysis of grown crystals has been undertaken to determine the melting point of grown polymorphs of glycine crystal. The temperature dependent behavior of dielectric parameters of grown crystals has been comparatively investigated within 35–90 °C by means of dielectric analysis.
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