Crossed molecular beam studies of the reactions of methyl radicals with iodoalkanes

Article abstract of DOI:10.1063/1.455348

The I atom exchange reactions, CH3+RI->CH3I+R , were investigated at a collision energy of ca. 13 kcal/mol using the crossed molecular beams technique.The supersonic beam of methyl radicals was formed by pyrolyzing a mixture of ca. 1percent di-tert-butyl peroxide in helium in a quartz nozzle.A large fraction of the total energy available to the products from these reactions is channeled into relative translation suggesting that the dominant interaction among the products is repulsive.The CH3 I product from both reactions was observed to be entirely backward scattered with respect to the incident radical beam indicating that a roughly collinear C-I-C transition state geometry is favored.The present results are compared to those of earlier crossed beam studies of the CH3+IY->CH3I+Y (Y=Cl, Br, I) reactions; the differences observed among these reactions are explained with reference to the CH3I-Y and CH3I-R interaction potentials.

Full text of DOI:10.1063/1.455348

Crossed molecular beam studies of the reactions of methyl radicals with
iodoalkanes
Gary N. Robinson, Gilbert M. Nathanson, Robert E. Continetti, and Yuan T. Lee
Citation: The Journal of Chemical Physics 89, 6744 (1988); doi: 10.1063/1.455348
View online: http://dx.doi.org/10.1063/1.455348
View Table of Contents: http://scitation.aip.org/content/aip/journal/jcp/89/11?ver=pdfcov
Published by the AIP Publishing
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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:
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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:
69.166.47.134 On: Fri, 28 Nov 2014 07:54:21

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:
69.166.47.134 On: Fri, 28 Nov 2014 07:54:21

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:
69.166.47.134 On: Fri, 28 Nov 2014 07:54:21

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:
69.166.47.134 On: Fri, 28 Nov 2014 07:54:21

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:
69.166.47.134 On: Fri, 28 Nov 2014 07:54:21

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:
69.166.47.134 On: Fri, 28 Nov 2014 07:54:21

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:
69.166.47.134 On: Fri, 28 Nov 2014 07:54:21

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:
69.166.47.134 On: Fri, 28 Nov 2014 07:54:21