Dipolar coupling, but of a reduced magnitude to that seen in solids, observed in a liquid sample between spins in a molecule where there is incomplete averaging of spatially
anisotropic dipolar couplings.
Notes: - RDC is typically achieved through partial alignment of molecules in the liquid state through spatially aligned gels or liquids.
- RDC is used to provide 3D structural information on molecules.
Source:
PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 703 (https://doi.org/10.1515/pac-2019-0203)