A term used to characterize radicals
which have lifetimes of several minutes or greater in dilute solution
solvents. Persistence is a kinetic or reactivity property. In contrast, radical stability
, which is a thermodynamic property, is expressed in terms of the
bond strength of the appropriate hydrocarbon. The lifetime
of a radical is profoundly influenced by steric shielding
of the radical centre by bulky substituents.
PAC, 1994, 66, 1077
(Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994))
on page 1150
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