Rate parameters for the reaction of atomic hydrogen with dimethyl ether and dimethyl sulfide

Article abstract of DOI:10.1063/1.441456

Absolute rate constants for the reaction of atomic hydrogen with dimethyl ether (DME) and dimethyl sulfide (DMS) were obtained using the flash photolysis-resonance fluorescence technique.Under conditions where secondary reactions are avoided, rate constants for the H + DME reaction over the temperature range 273-426 K are well represented by the Arrhenius expression k₁ = (4.38 +/- 0.59) * 10^-12 exp( - 1956 +/- 43/T) cm³ molecule^-1 s^-1.The corresponding Arrhenius expression for the H + DMS reaction over the temperature range 212-500 K is k₂ = (1.30 +/- 0.43) * 10^-11 exp( -1118 +/- 81/T) cm³ molecule^-1 s^-1.The Arrhenius plot for k₂ shows signs of curvature, however, and separate Arrhenius expressions are derived for the data above and below room temperature.These results are discussed and comparisons are made with previous determinations which employed flow discharge and product analysis techniques.

Full text of DOI:10.1063/1.441456

Rate parameters for the reaction of atomic hydrogen with dimethyl ether and dimethyl
sulfide
J. H. Lee, R. C. Machen, D. F. Nava, and L. J. Stief
Citation: The Journal of Chemical Physics 74, 2839 (1981); doi: 10.1063/1.441456
View online: http://dx.doi.org/10.1063/1.441456
View Table of Contents: http://scitation.aip.org/content/aip/journal/jcp/74/5?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:
28.189.203.83 On: Fri, 12 Dec 2014 07:15:01
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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:
28.189.203.83 On: Fri, 12 Dec 2014 07:15:01
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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:
28.189.203.83 On: Fri, 12 Dec 2014 07:15:01
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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:
28.189.203.83 On: Fri, 12 Dec 2014 07:15:01
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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:
28.189.203.83 On: Fri, 12 Dec 2014 07:15:01
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