Microwave Spectra of Molecules Exhibiting Internal Rotation. II. Methylallene
- 1 October 1957
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 27 (4) , 874-877
- https://doi.org/10.1063/1.1743868
Abstract
The microwave spectrum of methylallene, CH3CH:C:CH2, has been investigated in the region 16–33 kmc, and the J=1→2, 2→3, and 3→4 transitions measured. Most of the observed lines are split slightly as a result of internal rotation. Analysis of the splittings by the methods of Hecht and Dennison leads to an internal potential barrier of 556.0±2 cm—1 or 1589±6 cal/mole. The principal moments of inertia (in units of amu A2) are 14.93, 120.321, and 128.713. The electric dipole moment is 0.401 D and makes an angle of 10°8′ with the a principal axis.Keywords
This publication has 6 references indexed in Scilit:
- Microwave Spectra of Molecules Exhibiting Internal Rotation. I. PropyleneThe Journal of Chemical Physics, 1957
- Perpendicular Bands of AlleneThe Journal of Chemical Physics, 1957
- Hindered Rotation in Molecules with Relatively High Potential BarriersThe Journal of Chemical Physics, 1957
- Approximate Treatment of the Effect of Centrifugal Distortion on the Rotational Energy Levels of Asymmetric-Rotor MoleculesThe Journal of Chemical Physics, 1952
- trans-2-Butene. The Heat Capacity, Heats of Fusion and Vaporization, and Vapor Pressure. The Entropy and Barrier to Internal RotationJournal of the American Chemical Society, 1945
- The Infra-Red Absorption Spectra of Ethylene and Tetra-Deutero-Ethylene under High ResolutionThe Journal of Chemical Physics, 1942