Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1233684 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2010 | 4 Pages |
Abstract
Secondary deuterium isotope effects (IE) on the acidity (pKa) of glycine were measured by 13C NMR titration. It was found that deuteration decreases the pKa by 0.034 ± 0.002. The experimental data are supported by theoretical calculations, which, in turn, allowed to relate the acidity decrease to the lowering of glycine vibrational frequencies upon deuteration.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Jonathan Romero, Andrés Reyes, Julien Wist,