Bartells Perturbation Treatment

As already indicated above, kinetic studies of steric isotope effects afford a possibility of testing our present ideas about the transition state. Bartell s perturbation treatment (Section II, A) involves a timeaveraging of the repulsion energy with respect to the ordinary vibrational motion within the transition state. The passage through the... 

The prediction of the present naive theory is thus seen to contrast with that of Bartell s perturbation treatment and is also at variance with experimental results. This fact lends some support to the ordinary view that the transition state will survive several periods of ordinary vibrational motion. 

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