Hydrogen atom abstraction by O(3P) from diborane and ethane

Article abstract of DOI:10.1063/1.454751

We measured, via LIF, time-dependent concentrations of OH resulting from the reaction of O(³P) with B2H6 and C2H6.The oxygen atoms were generated by titrating microwave discharged N2 /He with NO to the chemiluminescent end point.The operating pressures in the flow reactor ranged from 5 to 15 Torr; the mixtures consisted of He/O(³P)/fuel in the approximate ratios 100/1/0.1 to 100/1/1.Flow conditions were such that in the low pressure experiments the controlled residence time prior to detection were 0.8-17 ms; under the higher pressure conditions, the time interval covered was 2-35 ms.We estimated that the temperature of the reaction region was ca. 350 K, based on rotational emission temperatures measured for BO*, generated under closely similar conditions.First a complete mechanism was derived for ethane for a specified set of experimental parameters.For ethane, a single set of experimental conditions was selected for ratioing the recorded intensity to the computed OH density; this was cross checked with other runs for ethane.Finally, a mechanism was developed for B2H6, which quantitatively checked our experimentally determined profiles both in shape and magnitude, for three sets of conditions, and within a factor of 2 for the high concentration runs ( lOOpercent B2H6 feeding into the reactor at 14 Torr).

Full text of DOI:10.1063/1.454751

Hydrogen atom abstraction by O(3 P) from diborane and ethane
D. B. Borchardt, J.G. Choi, K. Suzuki, and S. H. Bauer
Citation: The Journal of Chemical Physics 88, 6282 (1988); doi: 10.1063/1.454751
View online: http://dx.doi.org/10.1063/1.454751
View Table of Contents: http://scitation.aip.org/content/aip/journal/jcp/88/10?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:
38.251.14.35 On: Tue, 23 Dec 2014 23:53:25
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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:
38.251.14.35 On: Tue, 23 Dec 2014 23:53:25
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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:
38.251.14.35 On: Tue, 23 Dec 2014 23:53:25
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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:
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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:
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