Rice-Ramsperger-Kassel (RRK) theory

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Rice-Ramsperger-Kassel (RRK) theory (RRK)
Statistical theory of unimolecular reaction rates of gas-phase molecular species that is equivalent to the quasi-equilibrium theory, but with the added consideration that the effects of gas-phase collisions in activation to and deactivation from the transition state are taken into account.
Note: Elimination of most of the simplifying assumptions led to development of the Rice-Ramsperger-Kassel-Marcus (RRKM) theory.
Related Term(s):

Revised from

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.

using additional information from

T. Baercor, P. M. Mayer. J. Am. Soc. Mass Spectrom. 8, 103 (1997). (http://dx.doi.org/10.1016/S1044-0305(96)00212-7 )

O. K. Rice, H. C. Ramsperger. J. Am. Chem. Soc. 50, 617 (1928). (http://dx.doi.org/10.1021/ja01390a002 )

L. S. Kassel. J. Phys. Chem. 32, 225 (1928). (http://dx.doi.org/10.1021/j150284a007 )

From Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013); DOI: 10.1351/PAC-REC-06-04-06 © IUPAC 2013.

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