Rate constants for the gas-phase reactions of the NO/sub 3/ radical with a series of organic compounds at 296 +/- 2 K

Journal Article · Thu Jun 16 04:00:00 EDT 1988 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100323a028· OSTI ID:6289313

Atkinson, R; Aschmann, S M; Pitts, Jr, J N

By use of a relative rate technique, rate constants have been determined for the gas-phase reactions of the NO/sub 3/ radical with a series of organic species at 296 +/- 2 K. A step-ladder approach in which the relative reactivities of pairs of organic compounds, with the relative reactivities being within a factor of approx. 5, were determined was used to obtain rate constants for a series of alkanes and alkenes previously used as reference compounds in relative rate studies. By use of a literature rate constant for the reaction of NO/sub 3/ radicals with trans-2-butene of (3.87 +/- 0.45) x 10/sup -13/ cm/sup 3/ molecule/sup -1/ s/sup -1/, the following rate constants for these compounds were obtained (in cm/sup 3/ molecule/sup -1/ s/sup -1/ units): n-heptane, (1.36 +/- 0.21) x 10/sup -16/; 2,3-dimethylbutane, (4.06 +/- 0.57) x 10/sup -16/; ethene, (2.14 +/- 0.32) x 10/sup -16/; propene, (9.40 +/- 1.19) x 10/sup -15/; 2-methyl-2-butene, (9.33 +/- 1.18) x 10/sup -12/; and 2,3-dimethyl-2-butene, (5.69 +/- 0.73) x 10/sup -11/. These data allow previous relative rate constant ratio data to be placed on an absolute basis and a self-consistent set of room temperature NO/sub 3/ radical reaction rate constants to be presented for tropospheric chemistry purposes.

• Research Organization: Univ. of California, Riverside (USA)
• OSTI ID: 6289313
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 92:12; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKENES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DATA
EXPERIMENTAL DATA
FLUIDS
FURANS
GASES
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
INFORMATION
KINETICS
MEDIUM TEMPERATURE
NITROXYL RADICALS
NUMERICAL DATA
OCTENES
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PROPYLENE
RADICALS
REACTION KINETICS