DOI: 10.1063/1.462394. The low translational energy dependence of the reaction Ar+(2<i>P</i>3/2,1/2)+H2(D2)

The low translational energy dependence of the reaction Ar+(2P3/2,1/2)+H2(D2)

10.1063/1.462394

Crossref journal-article

AIP Publishing

The Journal of Chemical Physics (317)

Abstract

We report the measurement of the spin–orbit state specific rate coefficients for the reactions Ar+(2P3/2,1/2)+H2(D2) at translational temperatures from 0.5 to 3 K in a free jet flow reactor. The measured rate coefficient for Ar+(2P3/2) with either H2 or D2 shows a slow monotonic increase with increasing collision energy from 4×10−5 to 10 eV. The observed kinetic isotope effect at low energy is consistent with the simple mass-dependent change in the collision frequency. Below 3 K, excitation into the 2P1/2 state is found to enhance the total reaction rate by a factor of 2.7 for the reaction with H2 and by 1.6 for the reaction with D2. The full range of energy-dependent experimental results are compared to current reaction models.

Bibliography

Hawley, M., & Smith, M. A. (1992). The low translational energy dependence of the reaction Ar+(2P3/2,1/2)+H2(D2). The Journal of Chemical Physics, 96(10), 7440â7444.

Authors 2

Michael Hawley (first)
Mark A. Smith (additional)

References 31 Referenced 9

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Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 8:21 a.m.)
Deposited	1 year, 6 months ago (Feb. 10, 2024, 9:21 a.m.)
Indexed	1 year, 6 months ago (Feb. 11, 2024, 8:03 a.m.)
Issued	33 years, 3 months ago (May 15, 1992)
Published	33 years, 3 months ago (May 15, 1992)
Published Print	33 years, 3 months ago (May 15, 1992)

Funders 0

None

BibTeX

@article{Hawley_1992, title={The low translational energy dependence of the reaction Ar+(2P3/2,1/2)+H2(D2)}, volume={96}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.462394}, DOI={10.1063/1.462394}, number={10}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Hawley, Michael and Smith, Mark A.}, year={1992}, month=may, pages={7440–7444} }

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