The product formed by the
attachment of an
electrophilic or
nucleophilicentering group or of a
radical to a ring carbon of an aromatic species so that a new σ-bond is formed and the original
conjugation is disrupted. (This has generally been called a '
σ-complex', but
adduct is more appropriate than complex according to the definitions given.) The term may
also be used for analogous adducts to unsaturated (and conjugated) systems in general.
Source:
PAC, 1994, 66, 1077
(Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994))
on page 1170
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.
https://doi.org/10.1351/goldbook.
