Ethane Dissociation and Methyl Radical Recombination

We shall consider in this review mainly the information to be obtained from ka on unimolecular dynamics. We shall in this context first review the ethane dissociation-methyl radical recombination system, to show what can be done for such a well-studied model reaction and what could eventually be done for other reactions as well. We shall then give a short summary for the most recent results on various classes of unimolecular reactions. We are afraid that this enumeration is not complete, and we apologize for any important omissions. Mechanistic and physical organic aspects, which have previously been extensively reviewed, will not be discussed. 

Dissociation of Ethane and Recombination ot hfefliyi Radicals.—The reaction system CiHc 2CH3 is particularly suited for detailed investigations. It may be considered to be the simplest fission of the alkyl C—C bmd. Its rate has oftmi been taken as a reference for other radical reactions. Also, this reaction has been a testing ground for various theoretical model calculations for quite a long time. 

Glanzer, M. Quack, and J. Troe, Chem. Phys. Letters, 1976, 39, 304 XVI Symposium (International) on Combustion, The Combustion Institute, to be published (1976). 

Single-pulse shock tube total density of 1400 3.3 222 

Deuterium isotope effects have been determined for the recombination at room temperature and at 1400 In agreement with theoretical predictions, 

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