A. Lifshitz, C. Tamburu, and Aya Suslensky
Mar 19, 2004
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0
Influential Citations
15
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Journal
Journal of Physical Chemistry A
Abstract
The thermal reactions of 2-methylindene diluted in argon were studied behind reflected shock waves in a 2 in. i.d. pressurized driver single-pulse shock tube over the temperature range 1050−1300 K and overall densities of ∼3 × 10-5 mol/cm3. A plethora of products resulting from decompositions, isomerizations, and ring expansion were found in the post shock samples. They were naphthalene as the product of five-membered ring expansion, 1- and 3-methylindene due to isomerizations, and CH4, C2H4, C2H6, C2H2, benzene, toluene, ethylbenzene, styrene, phenylacetylene, and indene as the result of fragmentation. Very minute yields of some other compounds were also observed. Except for the isomerizations that take place from the reactant as a starting material, the production of all the other products involve free radical reactions. The initiation of the free radical mechanisms in the decomposition of 2-methylindene takes place via ejection of hydrogen atoms from sp3 carbons and dissociation of the methyl group att...