NMR Spectroscopy is one of the most powerful techniques for studying molecular structure and dynamics. Unlike the more abundant carbon-12 isotope, carbon-13 has a nuclear spin (I=1/2), which makes it NMR-active. This allows for the detailed investigation of chemical environments around carbon atoms in a molecule. C-13 NMR can provide information on the electronic structure, conformation, and dynamics of catalytic intermediates and products.
