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Formation of 3‐Methylfuran from the gas‐phase reaction of OH radicals with isoprene and the rate constant for its reaction with the OH radical
Author(s) -
Atkinson Roger,
Aschmann Sara M.,
Tuazon Ernesto C.,
Arey Janet,
Zielinska Barbara
Publication year - 1989
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550210709
Subject(s) - isoprene , chemistry , radical , yield (engineering) , reaction rate constant , furan , gas phase , photochemistry , free radical reaction , hydroxyl radical , organic chemistry , kinetics , thermodynamics , physics , quantum mechanics , copolymer , polymer
3‐Methylfuran has been identified as a product of the gas‐phase reaction of the OH radical with isoprene, and under simulated atmospheric conditions a formation yield of 0.044 ± 0.006 was determined. In an analogous manner, the OH radical reaction with 1,3‐butadiene formed furan with a yield of 0.039 ± 0.011. Using a relative rate method, a rate constant for the reaction of the OH radical with 3‐methylfuran of 9.35 × 10 −11 cm 3 molecule −1 s −1 (with an estimated overall uncertainty of ±20%) at 296 ± 2 K was also determined. These data show that 3‐methylfuran is a reactive compound which will be present in the troposphere at concentrations ⩽5% of those of its isoprene precursor.