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Gas phase kinetic study of the thermal reactions of t-butoxy radicals with germane, phosphine, and trimethylsilane

✍ Scribed by Yong-Eun Lee; Kwang Yul Choo

Publisher
John Wiley and Sons
Year
1986
Tongue
English
Weight
501 KB
Volume
18
Category
Article
ISSN
0538-8066

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✦ Synopsis

The hydrogen abstraction reactions of tert-butoxyl radicals with germane, phosphine, and trimethylsilane were studied by pyrolyzing di-t-butyl peroxide in the temperature range of 403 to 458 K. From the reported rate constant for the tert-butoxy radical decomposition in the literature, the absolute rate constants were determined from the study of competitive reaction between t-butoxy radical decomposition (t-BuO decompose+ CH3COCH3 + CH,) and hydrogen abstraction reaction. (t-BuO RH -+ t-BuOH + R, where RH = GeH,, PH,, and HSiMe,)

The Arrhenius parameters are found to be as follows:

E,(kcal mol-') Log A t-BuO + SiHMe, 2.1 t-BuO + GeH, 1.

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