FTIR gas kinetic study of the reactions of ozone with a series of hexenols at atmospheric pressure and 298 K

Abstract

Relative rate coefficients of the reactions of O3 with (Z)-3-hexen-1-ol, (E)-3-hexen-1-ol and (E)-2-hexen-1-ol have been determined in an environmental chamber with in situ FTIR detection of the reactants at 298K and 760Torr. The following rate coefficients (in units of 10−17cm3molecule−1s−1) have been determined: (6.04±0.95) for (Z)-CH2(OH)CH2CHCHCH2CH3; (5.83±0.86) for (E)-CH2(OH)CH2CHCHCH2CH3; (5.98±0.73) for (E)-CH2(OH)CHCH(CH2)2CH3. This is the first kinetic study for the reactions of O3 with (E)-2-hexen-1-ol and (E)-3-hexen-1-ol. Reactivity trends are developed and the atmospheric persistence of these compounds is calculated based on the rate coefficients.