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Optical and Dielectric Properties of L-Histidinium Trifluoroacetate NLO Single Crystal

Author Affiliations

  • 1 Department of Physics, Loyola College, Chennai-600 034, INDIA

Res.J.chem.sci., Volume 2, Issue (2), Pages 83-86, February,18 (2012)


Single crystals of L-Histidinium Trifluoroacetate were grown from aqueous solution by slow evaporation technique. Single crystal X-ray diffraction analysis reveals that the crystal belongs to triclinic crystal system. The optical transmission studies show that the crystal is transparent in the entire visible region with a cut off wave length has been found to be 230 nm. The optical band gap is found to be 4.25eV.The transmittance of L-Histidinium Trifluoroacetate crystal has been used to calculate the refractive index (n), extinction coefficient (K), electric susceptibility (Xc)and both the real and imaginary components of the dielectric constant as functions of wavelength. The dielectric constant and dielectric loss was also studied as a function of frequency at room temperature.


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