The
acceleration of a reaction by a unique
catalyst, rather than by a family of related substances. The term is most commonly used in
connection with specific hydrogen-ion or hydroxide-ion (
lyonium ion or
lyate ion)
catalysis.
Source:
PAC, 1994, 66, 1077
(Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994))
on page 1165