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Hydrogen bonding and the liquid‐to‐glass transition in propan‐1‐ and ‐2‐ol at high pressures
Author(s) -
Yenice K. M.,
Reed M. D.,
Lee S. A.,
Chang C. S.
Publication year - 1991
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250221114
Subject(s) - raman spectroscopy , hydrogen bond , chemistry , glass transition , analytical chemistry (journal) , hydrogen , spectral line , infrared spectroscopy , molecular vibration , crystallography , molecule , organic chemistry , optics , polymer , physics , astronomy
The pressure dependence of the vibrational modes of propan‐1‐ and ‐2‐ol was measured by Raman spectroscopy up to 8 GPa at 300 K. Changes in the observed vibrational spectra indicate that the samples undergo a liquid‐to‐glass transition at about 4.5 GPa for propan‐2‐ol and about 5.5 GPa for propan‐1‐ol. The frequency of the O‐H stretching mode (a probe of the degree of hydrogen bonding) was found to decrease at a rate of ca −28 cm −1 GPa −1 for both propan‐1‐ and ‐2‐ol.