Spin-Spin Couplings: Properties and Applications

This lecture covers the concept of spin-spin couplings in magnetic resonance, discussing the typical J-coupling constants for various molecular structures, including one-bond and two-bond coupling constants. It also explores long-range couplings and the Karplus relation, which relates coupling constants to dihedral angles in molecules. The lecture further delves into dipolar couplings in solid-state NMR, explaining the behavior of spin doublets under different orientations. Additionally, it examines the properties of J-couplings and dipolar couplings, highlighting their strengths and effects on NMR spectra. The summary emphasizes the role of J-couplings in providing insights into bonding networks and the spectral complexity of strongly coupled spins.