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1996 (1)
1Author    Christovam Mendonça, SaidR. RabbaniRequires cookie*
 Title    Anharmonic Lattice Vibrations and the Temperature Shift of Raman Spectral Lines  
 Abstract    The temperature dependence of the average lattice mode frequency of a molecule undergoing librational motion in a quasi-harmonic potential has been calculated with the purpose of finding an explicit relationship between the observed shift of Raman spectral lines with temperature and the anharmonic term in the rotational potential. Calculations were carried out both for uncoupled and coupled oscillators. The equations obtained with this model provide good fittings for solid Cl 2 and benzene data. This result can be applied to the analysis of the temperature dependence of NQR frequencies in molecular crystals. 
  Reference    Z. Naturforsch. 51a, 716—720 (1996); received November 20 1995 
  Published    1996 
  Keywords    Vibrational Spectroscopy, Raman Spectra, Anharmonic Vibrations, NQR 
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 TEI-XML for    default:Reihe_A/51/ZNA-1996-51a-0716.pdf 
 Identifier    ZNA-1996-51a-0716 
 Volume    51