ISSN:
0538-8066
Keywords:
Chemistry
;
Physical Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Time-resolved mass spectroscopy has been utilized to study the kinetics of methylradical association. The rate coefficient for the association process was determined by following the time dependence of ethane formation after flash photolysis of CH3I in the presence of N2. The net rate coefficient for the process 2CH3 (+M) → C2H6(+M) has a high-pressure limit of (4.0 ± 0.3) × 10-11 cm3 molecule-1 sec-1 at 313°K. This rate coefficient has found to be insensitive to the third-body number densities for pressures ranging from 13 Torr down to below 0.5 Torr, indicating that the lifetime for dissociation of the intermediate C2H6* species is greater than 2 × 10-7 sec at 313°K for a gas pressure of 0.5 Torr.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/kin.550050502
