The Reactions of Methyl Radicals. II. The Abstraction of Hydrogen Atoms from Paraffins
- 1 February 1951
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 19 (2) , 163-168
- https://doi.org/10.1063/1.1748152
Abstract
The reactions of methyl radicals formed by the photolysis of acetone and deutero‐acetone with nine paraffins have been studied from 25°C to 340°C. If the combination of methyl radicals requires no activation energy, then the activation energies found for the abstraction of hydrogen atoms are as follows: ethane, 10.4; n‐butane, 8.3; 2‐methyl propane, 7.6; n‐pentane, 8.1; 2,2‐dimethyl propane, 10.0; n‐hexane, 8.1; 2,3‐dimethyl butane, 6.9 and 7.8; 2,3,4‐trimethyl pentane, 7.9; 2,2,3,3‐tetra‐methyl butane, 9.5 (all values in kcal). The collision theory steric factors of these reactions are all less than 10−3.Keywords
This publication has 2 references indexed in Scilit:
- The Reactions of Methyl Radicals. I. The Photolysis of AcetoneThe Journal of Chemical Physics, 1950
- The magnitude of the probability factors in radical reactionsTransactions of the Faraday Society, 1949