Spin–spin splitting

Definition

Spin-spin splitting is a phenomenon observed in Nuclear Magnetic Resonance (NMR) spectroscopy where the magnetic environment of a nucleus affects the resonance frequency of nearby nuclei, leading to the splitting of their NMR signals into multiple peaks. This effect allows for the determination of molecular structures by providing information about the number and arrangement of neighboring hydrogen atoms.

Related terms

Chemical Shift: The change in resonance frequency of a nucleus relative to a standard reference point, providing insights into its electronic environment.

J Coupling: A parameter that quantifies the interaction between two spin-active nuclei leading to spin-spin splitting in NMR spectra.

Multiplicity: Describes the number of peaks observed in an NMR signal due to spin-spin splitting, indicating how many neighboring hydrogen atoms are present