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Nichtstationäre Kinetik bei S N 1, S N 2, E 1 , E 2 und E 1 cb ‐Mechanismen
Author(s) -
Frei K.,
Günthard Hs. H.
Publication year - 1967
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19670500512
Subject(s) - chemistry , kinetics , thermodynamics , kinetic energy , reaction rate constant , state (computer science) , chemical kinetics , stationary state , physics , quantum mechanics , mathematics , algorithm
Abstract For the S N 1, S N 2, E 1 , E 2 , AND E 1 cb mechanisms exact solutions of the kinetic equations are compared with solutions obtained under the hypothesis of stationarity. Exact integrals are calculated numerically for a set of the essential reaction rate constants. Comparison with the stationary state solution demonstrates that both types of solutions are approximately equal in many cases if the transient particle concentration remains low, whereas the conventional requirement | \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop x\limits^. $\end{document} | = 0 is unimportant. For approximation of exact kinetics by stationary kinetics, however, neither condition is sufficient nor necessary. Practical criterions for recognition of deviations from stationary kinetics are given.