Relative Intensities of Microwave Absorption Lines
- 1 August 1958
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 29 (2) , 340-347
- https://doi.org/10.1063/1.1744483
Abstract
A method is described for measuring the relative intensities of microwave absorption lines up to 80 mc. apart to within a few percent, using a Stark‐modulated resonant cavity absorption cell of novel design. Barriers to internal rotation in CH3CHO and CH3CH2F have been obtained by measuring the relative intensities of torsional satellites. The resulting barrier heights are: 1103±60 cal for CH3CHO, 3310±210 cal. for CH3CH2F, in good agreement with the values 1162±30 cal for CH3CHO, and 3306±100 cal for CH3CH2F obtained from splitting measurements by Kilb, Lin, and Wilson, and by Herschbach, respectively. Correction factors are given for errors in intensity and splitting measurements due to small doublet splittings.Keywords
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