Preferred Label : magnetic equivalence;
IUPAC definition : Nuclei having the same resonance frequency in nuclear magnetic resonance spectroscopy
and also identical spin-spin interactions with the nuclei of a neighbouring group
are magnetically equivalent. The spin-spin interaction between magnetically equivalent
nuclei does not appear, and thus has no effect on the multiplicity of the respective
NMR signals. Magnetically equivalent nuclei are necessarily also chemically equivalent,
but the reverse is not necessarily true.;
Origin ID : M03681;
See also
Nuclei having the same resonance frequency in nuclear magnetic resonance spectroscopy
and also identical spin-spin interactions with the nuclei of a neighbouring group
are magnetically equivalent. The spin-spin interaction between magnetically equivalent
nuclei does not appear, and thus has no effect on the multiplicity of the respective
NMR signals. Magnetically equivalent nuclei are necessarily also chemically equivalent,
but the reverse is not necessarily true.
