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Structural, optical and photo luminescence studies on N-acetylglycine single crystal



  1. Department of Physics, Jaya College of Arts and Science, Thiruninravur, Chennai 602 024, India
  2. Department of Physics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Thandalam, Chennai 602 105, India
  3. Department of Physics, Rajalakshmi Engineering College, Thandalam, Chennai 602 105, India
  4. Department of Nuclear Physics, University of Madras, Guindy Campus, Chennai 600 025, India
  5. Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-950, Wrocław, 2, P.O. Box 937, Poland


The crystals of N-acetylglycine (NAG) had been obtained through the gradual evaporation of an aqueous solution at room temperature. Single crystal X-ray diffraction analysis let out that the crystal associated to monoclinic system with centro symmetric space group P21/c. The lattice parameters are calculated to be a=4.8410(10) Å, b=11.512(2) Å, c =9.810(2) Å, α=90o, β=97.02(3)o, γ=90o and V=542.61 (Å)3. The primitive unit cell has 4 molecules. Vibrational spectroscopic analysis is reported on the basis of FT-IR and FT-Raman spectra recorded at room temperature. The crystal gives notable vibrational effect due to the presence of extensive hydrogen bond network. The UV-Vis studies have been carried out and the cutoff wavelength λ is observed to be 379 nm. The energy gap is calculated as 2.757 eV. The luminescence property has been examined by Photo luminescence spectrum. Thus in the existing study, structure-property correlation of n-acetylglycine molecule is investigated for future nonlinear optical purposes through experimental approach..


XRD, UV-Vis, Vibrational, Band gap, Photo luminescence.

Submitted at: Oct. 28, 2019
Accepted at: Aug. 18, 2020


V. J. THANIGAIARASU, N. KANAGATHARA, K. SENTHILKUMAR, G. ANBALAGAN, M. K. MARCHEWKA, Structural, optical and photo luminescence studies on N-acetylglycine single crystal, Journal of Optoelectronics and Advanced Materials Vol. 22, Iss. 7-8, pp. 393-399 (2020)