Motional Averaging of Methyl-Group ESR Hyperfine Structure
- 28 September 1970
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 25 (13) , 839-842
- https://doi.org/10.1103/physrevlett.25.839
Abstract
A model for the modulation of the methyl-group rotational tunneling frequency at low temperatures, which was previously introduced to account for proton spin-lattice relaxation, is here shown to predict hitherto unexpected features in methyl-group ESR hyperfine structure connected with the change with rising temperature from eight lines to four. Two experiments are described which confirm the predictions.Keywords
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