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complex mechanism
This term is sometimes applied to an elementary reaction which proceeds via an intermediate species having a lifetime longer than a few rotational periods, in contrast to a direct reaction. However, in view of the danger of confusion with a reaction occurring in more than one step (a composite reaction ) this usage is not to be recommended; it is better to use the terms complex-mode mechanism or complex-mode reaction.
PAC, 1996, 68, 149 (A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)) on page 160
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Cite as: IUPAC Compendium of Chemical Terminology, Electronic version, http://goldbook.iupac.org/C01205.html.
Transformed and rewritten from PDF version (entry http://www.iupac.org/goldbook/C01205.pdf)
by: Miloslav Nic, Jiri Jirat, Bedrich Kosata, ICT Prague, Czech Republic