Rice-Ramsperger-Kassel relation

Taking AH/(CH2) equal to 80 kcal. and AHf ( CH2CH2CH2 ) equal to 67 kcal.,11 18 formation of the trimethylene diradical by reaction of CH2 + H2C=CH2 is exothermic by 25.5 kcal. From the Rice-Ramsperger-Kassel relation... [Pg.256]

To use the master equation, one needs a general formula for the rate constant, kj, out of minimum j through transition state f. In the micro-canonical ensemble this relation is provided by Rice-Ramsperger-Kassel-Marcus (RRKM) theory [166] ... [Pg.30]

The QET is formally identical to the Rice-Ramsperger-Kassel-Marcus (RRKM) theory of unimolecular decay, in which the rate constant for dissociation to reaction products of an energized species with total angular momentum J and internal energy E over a barrier of Eq is given by the following relation ... [Pg.189]

The methods for the calculation of k(e, J) are related to the RRKM theory (abbreviation of the first letters of surnames of scientists who developed the theory Rice, Ramsperger, Kassel, Marcus). [Pg.64]

This is the Rice-Ramsperger-Kassel-Marcus (RRKM) expression of the reaction rate constant at energy E [127]. For total energies E below the potential energy of the transitions state, i.e., for E < F(/ts), k E) vanishes. The canonical and the microcanonical rate constants are related by a Laplace transform, ... [Pg.193]

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