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Effect of trytophan as dopant on potassium acid phthalate single crystals, PP. 87-91 Subject Areas: Biological Materials, Biochemistry, Environmental Sciences, Biological Chemistry, Functional Materials, Composite Material, Inorganic Chemistry, Bioengineering Keywords: Potassium acid phthalate-tryptophan, FTIR, X-ray diffraction, TG-DSC, Dielectric constant Abstract Optically transparent single crystals of potassium acid phthalate (KAP, 0.5 g) 0.05 g and 0.1 g (1 and 2 mol %) trytophan were grown in aqueous solution by slow evaporation technique at room temperature. Single crystal X- ray diffraction analysis confirmed the changes in the lattice parameters of the doped crystals. The presence of functional groups in the crystal lattice has been determined qualitatively by FTIR analysis. Optical absorption studies revealed that the doped crystals possess very low absorption in the entire visible region. The dielectric constant has been studied as a function of frequency for the doped crystals. The thermal stability was evaluated by TG-DSC analysis. Bhuvana, J. and Madhurambal, G. (2015). Effect of trytophan as dopant on potassium acid phthalate single crystals. Chemistry Internatioanl, e5765.
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