Quadrupolar coupling is typically measured using solid-state NMR spectroscopy, which is particularly useful for studying materials that lack long-range order, such as heterogeneous catalysts. Techniques like magic-angle spinning (MAS) and high-resolution NMR can be employed to resolve quadrupolar interactions. Additionally, computational methods including density functional theory (DFT) can be used to predict quadrupolar coupling constants and corroborate experimental findings.
