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Rate constants for the gas-phase reactions of OH radicals with nitroethene, 3-nitropropene and 1-nitrocyclohexene at 298 K and 1 atm

Publikation: Bidrag til tidsskriftTidsskriftartikel

  • Nielsen, Ole John
  • Ole Jørgensen
  • Michael Donlon
  • Howard W. Sidebottom
  • Denis J. O'Farrell
  • Jack Treacy

Rate constants for the reactions of OH radicals with CH2=CHNO2, CH2=CH-CH2NO2 and c-C6H9NO2 have been determined at 298 ± 2 K and a total pressure of 1 atm. Rate data for the reaction of OH radicals with CH2=CH2, CH2=CH-CH3 and c-C6H10 were also obtained for comparison purposes. The OH rate data for all the compounds except c-C6H9NO2 were obtained using the absolute technique of pulse radiolysis combined with kinetic UV spectroscopy. Water-argon mixtures were irradiated and the OH kinetics recorded by following the transient light absorption at 309 nm. The rate constant for the OH + c-C6H9NO2 reaction was derived using a conventional photolytic relative-rate method. The results are discussed in terms of structure-reactivity relationships.

TidsskriftChemical Physics Letters
Udgave nummer3-4
Sider (fra-til)319-323
Antal sider5
StatusUdgivet - 4 maj 1990

ID: 214273473