Thermodynamic Parameters of the Gauche-Trans Equilibrium in Ethylene Glycol
- 1 January 1979
- journal article
- research article
- Published by Taylor & Francis in Spectroscopy Letters
- Vol. 12 (9) , 679-685
- https://doi.org/10.1080/00387017908069193
Abstract
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.Keywords
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