Jump to main content
Jump to site search

Issue 4, 1985
Previous Article Next Article

Effect of temperature on low-frequency Raman scattering from crystalline pentadecaethylene glycol di-n-octadecyl ether

Abstract

Raman spectra have been recorded for a homogeneous sample of pentadecaethylene glycol di-n-octadecyl ether at several temperatures in the range 77–293 K. The crystalline material comprises helical oxyethylene and planar zig-zag n-alkyl blocks in a contiguous structure. Five scattering peaks are found with frequency (ν) dependent on temperature (T). One peak at 88–80 cm–1 with a linear variation of ν with T is assigned to a lattice mode. The other peaks, with more complex variations of ν with T, are assigned to the longitudinal acoustical mode, LAM-1, of the n-alkyl block (130–125 cm–1), to the LAM-3 and LAM-1 of the oxyethylene block (46–41 and 18–14 cm–1) and, with less certainty, to a transverse acoustical mode, TAM-1 (14–10 cm–1).

Back to tab navigation

Article type: Paper
DOI: 10.1039/F29858100491
Citation: J. Chem. Soc., Faraday Trans. 2, 1985,81, 491-501
  •   Request permissions

    Effect of temperature on low-frequency Raman scattering from crystalline pentadecaethylene glycol di-n-octadecyl ether

    K. Viras, T. A. King and C. Booth, J. Chem. Soc., Faraday Trans. 2, 1985, 81, 491
    DOI: 10.1039/F29858100491

Search articles by author

Spotlight

Advertisements