Molecular conformers in gas-phase ethanol: A temperature study of vibrational overtones

✍ Scribed by Howard L. Fang; Robert L. Swofford

• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 495 KB
• Volume: 105
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(84)80404-2

✦ Synopsis

Overtone absorption spectra are reported for ethanol vapor :10150-19900 cm-') measured by intracavity photoacoustic spectroscopy. The O-H overtones are composed of two sub-bands which are assigned as the transitions of two conformers of the O-H bond in the trans or gauche position v&h respect to the methyl group From the temperature dependence of the O-H overtone Intensity we determine the enthalpy difference between the conformers to be 0.7 k 0.1 kcillmole.