JOURNAL OF MOLECULAR STRUCTURE, vol.560, pp.189-196, 2001 (SCI-Expanded)
This study examines a linear variation of the specific heat C-P with the frequency shifts 1/nu(partial derivative nu/partial derivativeT) for the Brillouin frequencies of the L-mode ,  and  in the ferroelectric phase of NaNO2 according to our spectroscopically modified Pippard relation. We obtain this linear relationship for those modes studied and calculate dT(C)/dP in the ferroelectric phase of NaNO2. Our calculated values of dT(C)/dP for the  and  modes are in good agreement with the values given in the literature. (C) 2001 Elsevier Science B.V. All rights reserved.