No Contribution of an Inductive Effect to Secondary Deuterium Isotope Effects on Acidity
作者:Charles L. Perrin、Agnes Flach
DOI:10.1002/anie.201102125
日期:2011.8.8
Effect and cause: Secondarydeuteriumisotope effects on the acidity of the deuterated compounds 1–4 were measured by using an NMR titration method applicable to a mixture and capable of very high accuracy. Variable‐temperature experiments show that these isotope effects are due only to changes in vibrational frequencies. These findings refute an inductive origin for these isotope effects.