Two or more
primitive changes are said to be concerted (or to constitute a concerted process) if they occur within the same
elementary reaction. Such changes will normally (though perhaps not inevitably) be '
energetically coupled'. (In the present context the term '
energetically coupled' means that the simultaneous progress of the primitive changes involves a
transition state of lower energy than that for their successive occurrence.) In a concerted process the primitive changes may be
synchronous or asynchronous.
Source:
PAC, 1994, 66, 1077
(Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994))
on page 1098
Cite as:
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.
doi:10.1351/goldbook.
