When in a condensed phase, or in a dense gas, reactant
molecules come together, or species are formed in proximity to one another, and are
caged in by surrounding molecules, they may undergo a set of collisions known as an
; the term 'cage effect
' is then applied.
effect is also known as the Franck–Rabinowitch effect.
PAC, 1996, 68, 149
(A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC
on page 155
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