Thermodynamic Parameters of the Gauche-Trans Equilibrium in Ethylene Glycol
作者:
P. Pruettiangkura,
S. Ho,
M. Schwartz,
期刊:
Spectroscopy Letters
(Taylor Available online 1979)
卷期:
Volume 12,
issue 9
页码: 679-685
ISSN:0038-7010
年代: 1979
DOI:10.1080/00387017908069193
出版商: Taylor & Francis Group
关键词: Raman Spectra;Conformational Equilibrium
数据来源: Taylor
摘要:
The Raman spectrum of ethylene glycol was studied as a function of temperature in the neat liquid and at two concentrations in the solvent, DMSO. Relative intensities of the gauche C-C-O bending mode and the C-C stretch (coincident for both rotamers) were utilized to calculate δH and TδS for each of the mixtures. It was observed that dilution in the solvent stabilizes the trans conformer, whereas variation in the entropy difference appears to favor the gauche form.
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