Fifth Electronic Computational Chemistry Conference Paper 62.
VIBRATIONS and VRT DYNAMICS of the AMMONIA DIMER : A FURTHER ANALYSIS.


7th VIBRATION MODE.



Interchange Dynamics.




fig n°9
Geared Umbrella Motions




Motion along this PES valley might lead both to interchange dynamics and also to true 1 --> 1 tunneling dynamics. These later dynamics would not induce energy splittings, but would create perturbations of energy levels.
These dynamics can be analyzed also as generated by first order pertubation along the two monomer umbrella degrees of freedom.







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