Infra-Red and Raman Spectra of Polyatomic Molecules XII. Methyl Acetylene
- 1 July 1940
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 8 (7) , 526-531
- https://doi.org/10.1063/1.1750706
Abstract
The infra‐red absorption of methyl acetylene gas has been studied between 2.5 and 25μ; the Raman spectrum of the liquid has been measured. A complete vibrational analysis is given, and the thermodynamic properties of the gas, between 250° and 1000°K, are tabulated. A normal coordinate treatment has been carried out, in which all force constants were determined a priori from other molecules. The ten fundamentals are calculated with an average error of 1.1, and a maximum error of 2.3 percent.Keywords
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