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IJBB Vol.41(6) [December 2004] >


Title: Phonon dispersion in polyinosinic acid
Authors: Srivastava, Seema
Srivastava, Shinoo
Khan, Irfan Ali
Pandey, M K
Gupta, V D
Keywords: Normal modes
dispersion curves
Fourier transform
density-of-states
polyinosinic acid
Issue Date: Dec-2004
Publisher: CSIR
Abstract: A study of the normal modes of vibration and their dispersion in polyinosinic acid [poly (I)] along the helix axis based on Urey-Bradley force field is reported. It leads to a better interpretation of Raman and FTIR spectra. A comparison of dispersion curves of poly (I) with poly (G) has been made. Characteristic features of dispersion curves, such as regions of high density-of-states, repulsion and character mixing are discussed. Predictive value of heat capacity as a function of temperature is reported.
Page(s): 311-321
Source:IJBB Vol.41(6) [December 2004]

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