Intensity parameters for the Raman trace scattering of ethane
- 15 October 1986
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 85 (8) , 4290-4296
- https://doi.org/10.1063/1.451802
Abstract
Absolute Raman trace scattering cross sections have been measured for gaseous ethane-h6 and -d6 and the two rotational conformers of 1,1,2,2-ethane-d4. Sets of ∂ᾱ/∂Sj intensity parameters were determined for the C2H6/C2D6 pair and for the two CHD2CHD2 isomers; these sets were equal to within the experimental accuracy. The concept of an isotopically independent set of Raman intensity parameters for describing the Raman spectrum of various isotopic species of a molecule is found to be as valid as the concept of an isotopically independent harmonic force field for describing vibrational frequencies.Keywords
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