A
bimolecular process formally involving the exchange of a bond (or bonds) between similar interacting
chemical species so that the bonding affiliations in the products are identical (or closely similar)
to those in the reactants. For example:
(The term has its origin in inorganic chemistry with a different meaning, but this
older usage is not applicable in physical organic chemistry.)
Source:
PAC, 1994, 66, 1077
(Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994))
on page 1139
