Frequency shift in the
nuclear magnetic resonance spectrum of a paramagnetic species that refers to the relative shift
\(\boldsymbol{K}\) in NMR frequency for atoms in a metal (e.g., sodium) compared with the same atoms in a nonmetallic environment (e.g., as a salt).
Note:
The observed shift reflects the local magnetic field produced at the metal nucleus by the magnetization of the conduction electrons.
Source:
PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 695 (https://doi.org/10.1515/pac-2019-0203)