The translational energy dependence of the F + C2H4 -> H + C2H3F reaction cross section near threshold

Article abstract of DOI:10.1063/1.458474

We have carried out crossed molecular beam studies of the substitution reaction F + C2H4 -> H + C2H3F in the collision energy range 0.8-2.5 kcal/mol using a velocity selected F atom beam.The relative substitution cross section is found to decrease with increasing collision energy indicating that if there is a potential energy barrier to F atom addition to C2H4 it is much less than 0.8 kcal/mol and that the transition state for addition occurs early along the reaction coordinate.These results agree well with ab initio calculations.Although the product translational energy distributions are similar to those obtained from earlier work at higher collision energies, the C2H3F angular distributions suggest that a wider range of rectant approach geometries lead to products at lower energies.

Full text of DOI:10.1063/1.458474

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The translational energy dependence of the F+C2H4 →H+C2H3F reaction cross
section near threshold
Gary N. Robinson, Robert E. Continetti, and Yuan T. Lee
Citation: The Journal of Chemical Physics 92, 275 (1990); doi: 10.1063/1.458474
View online: http://dx.doi.org/10.1063/1.458474
View Table of Contents: http://scitation.aip.org/content/aip/journal/jcp/92/1?ver=pdfcov
Published by the AIP Publishing
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Evaluation Only. Created with Aspose.PDF. Copyright 2002-2021 Aspose Pty Ltd.
This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
128.193.164.203 On: Mon, 22 Dec 2014 17:27:12

Evaluation Only. Created with Aspose.PDF. Copyright 2002-2021 Aspose Pty Ltd.
This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
128.193.164.203 On: Mon, 22 Dec 2014 17:27:12

Evaluation Only. Created with Aspose.PDF. Copyright 2002-2021 Aspose Pty Ltd.
This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
128.193.164.203 On: Mon, 22 Dec 2014 17:27:12