) and/or electron spin resonance
) is defined as the form of spectroscopy
concerned with microwave-induced transitions between magnetic energy levels of electrons
having a net spin and orbital angular momentum
. The term electron paramagneticresonance
and the symbol
are preferred and should be used for primary indexing.
PAC, 1989, 61, 2195
(Recommendation for EPR/ESR nomenclature and conventions for presenting experimental
data in publications (Recommendations 1989))
on page 2196
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook