(NOE) A change in the steady state magnetization of a particular nucleus due to irradiation of a neighboring nucleus with, which it is coupled by means of a spin spin coupling interaction. This interaction must be the primary relaxation mechanism of these nuclei. Such an effect can occur during decoupling and must be taken into account for accurate intensity determinations during such procedures.

(HOESY) See Nuclear Overhauser Effect and Spectroscopy.

Form of NMR spectroscopy in which an additional dimension is added to the conventional chemical shift dimension by allowing varying amounts of different interactions between spin systems (such as Nuclear Overhauser Effect, spin spin coupling or exchange).