Kinetics and mechanisms of the reactions of CH with CH4, C2H6 and n-C4H10

Michael R. Berman*, Ming-Chang Lin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

83 Scopus citations

Abstract

The reactions of CH(X 2II) with several saturated hydrocarbons were studied over a broad range of temperature. CH radicals were generated by multiphoton dissociation of CHBr3 using 266 nm radiation and detected by their laser-induced fluorescence at 429.8 nm. All reactions studied here had rate constants that decreased with increasing temperature. The Arrhenius expressions for the rate constants obtained at 100 Torr total pressure were k4 = 5.0 ± 0.5 × 10-11 20 exp(200=31)/T), k31T]kc2H6 = (1.8 ± 0.2) × 10-10 exp[(132 ± 30)/T] and k[ = (4.4 ± 0.8) × 10-10 exp[(2[ ± 60)/T] cm[ molecule-1 s[ 2 in the temperature ranges 167-652, 162-650 and 257-653 K, respectively. The rate constant for the reaction of CH-CH[ was found to be independent of total pressure between 25 and 200 Torr.

Original languageEnglish
Pages (from-to)435-442
Number of pages8
JournalChemical Physics
Volume82
Issue number3
DOIs
StatePublished - 15 Dec 1983

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