The rotational potential in the ammonium hexahalometallates
- 30 December 1982
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 15 (36) , 7295-7304
- https://doi.org/10.1088/0022-3719/15/36/012
Abstract
Building on the measured values of two librational frequencies and the tunnelling splitting, the authors determine the rotational potential of the ammonium ion in (NH4)2SnCl6. Predictions are made concerning the excitations of the deuterated ammonium ion in the same crystal. A comparison with other methods shows a general agreement with respect to the pronounced anharmonicity of the potential.Keywords
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