Source: wikibot/j-coupling
= J-coupling
{wiki=J-coupling}
J-coupling, also known as scalar coupling or J-interaction, is a phenomenon observed in nuclear magnetic resonance (NMR) spectroscopy that describes the interaction between nuclear spins. It is a result of the magnetic interaction between nuclei in a molecule, usually through the electrons that mediate the interaction, and it provides important information about the connectivity and spatial arrangement of atoms in a molecule.