Effect of Translational Energy on Ion—Molecule Reaction Rates. II
1.K. R. Ryan and J. H. Futrell, J. Chem. Phys. 42, 824 (1965).
2.F. H. Field, J. L. Franklin, and F. W. Lampe, J. Am. Chem. Soc. 79, 2419 (1957).
3.V. L. Tal’roze and E. L. Frankevich, Zh. Fiz. Khim. 34, 2709 (1960).
4.K. R. Ryan, J. H. Futrell, and C. D. Miller, Rev. Sci. Instr. (to be published).
5.As discussed above, this conclusion is at variance with the conclusion reached in Paper I of this series, which was based on data obtained using a less‐sophisticated pulse technique.1 We feel that rate constants obtained from the present research using a combined applied field and pulse technique are more reliable than the previous results using a field‐free source. It may be noted that Tal’roze and Frankevich2 and Hand and von Weyssenhoff [Can. J. Chem. 42, 195 (1964)], studied the proton‐transfer reaction in methane by the pulse method and obtained rate constants in satisfactory agreement with earlier pressure studies. Similar agreement was observed in the raw data of our earlier experiments and the discrepancy became apparent only after application of a correction factor for multiplier discrimination as discussed in Ref. 1. We do not know whether the multiplier factors we applied have any generality. Our present position, however, is that rate constants obtained in our apparatus by the pulse technique under field‐free conditions are in error in absolute magnitude. Accordingly the rate constants obtained by the more conventional pressure methods or by the present technique are to be preferred.
6.G. Gioumousis and D. P. Stevenson, J. Chem. Phys. 29, 294 (1958).
7.P. Langevin, Ann. Chim. Phys. 5, 245 (1905).
8.T. F. Moran and W. H. Hamill, J. Chem. Phys. 39, 1413 (1963).
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Article metrics loading...
Full text loading...
Most read this month
Most cited this month