Ultrasonic Relaxation in Rotational Isomers
- 1 January 1959
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 30 (1) , 304-307
- https://doi.org/10.1063/1.1729892
Abstract
Ultrasonic absorption peaks were observed in liquid 2,3‐dimethylbutane, 2‐methylpentane, and in 3‐methylpentane in the frequency range 3 mc to 35 mc. The mechanism of absorption can be explained in terms of hindered rotation about the middle C–C bond in 2,3‐dimethylbutane and about the second and third C–C bond in pentanes. The energy differences between potential minima were found to be about 0.95 kcal/mole in all three liquids. The activation energy of 2‐methylpentane was found to be about 3.9 kcal/mole.Keywords
This publication has 13 references indexed in Scilit:
- Ultrasonic analysis of molecular relaxation processes in liquidsQuarterly Reviews, Chemical Society, 1957
- Ultrasonic Studies of Saturated Hydrocarbons at Low TemperaturesThe Journal of Chemical Physics, 1956
- Ultrasonic Relaxation Theory for LiquidsProceedings of the Physical Society. Section B, 1956
- Kinetic and thermodynamic aspects of the second coefficient of viscosityProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1954
- The absorption and dispersion of ultrasonic waves in acetic acidProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1949
- On the Pulse Method of Measuring Ultrasonic Absorption in LiquidsProceedings of the Physical Society. Section B, 1949
- Absorption of Supersonic Waves in LiquidsThe Journal of the Acoustical Society of America, 1946
- Ultrasonic Propagation in Liquids: I. Application of Pulse Technique to Velocity and Absorption Measurements at 15 MegacyclesThe Journal of Chemical Physics, 1946
- The Origin of the Absorption of Ultrasonic Waves in LiquidsThe Journal of the Acoustical Society of America, 1941
- Zur Dispersionstheorie des SchallesAnnalen der Physik, 1931