Abstract
The tunnelling and torsional motions of methyl groups in lithium acetate dihydrate (CH3COOLi·2H2O) have been studied in detail by incoherent inelastic neutron scattering. The results are interpreted by a model of pairs of methyl groups performing a coupled tunnelling motion. The strength of the coupling term is estimated to be about twice as strong as the threefold hindering barrier for the single particle motion.
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Clough, S., Heidemann, A., Horsewill, A.H. et al. Coupled tunnelling motion of a pair of methyl groups in lithium acetate studied by inelastic neutron scattering. Z. Physik B - Condensed Matter 55, 1–6 (1984). https://doi.org/10.1007/BF01307492
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DOI: https://doi.org/10.1007/BF01307492