Atmos. Chem. Phys. Discuss., 11, 2377-2405, 2011
www.atmos-chem-phys-discuss.net/11/2377/2011/
doi:10.5194/acpd-11-2377-2011
© Author(s) 2011. This work is distributed
under the Creative Commons Attribution 3.0 License.
Review Status
This discussion paper has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP.
Rate coefficients for the gas-phase reaction of OH with Z-3-hexen-1-ol, 1-penten-3-ol, E-2-penten-1-ol, and E-2-hexen-1-ol between 243 and 404 K
M. E. Davis1,2,* and J. B. Burkholder1
1Earth System Research Laboratory, Chemical Sciences Division, NOAA, 325 Broadway, Boulder Colorado 80305-3328, USA
2Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder 80309, USA
*now at: Michigan State University, East Lansing, MI 48825, USA

Abstract. Rate coefficients, k, for the gas-phase reaction of the OH radical with (Z)-3-hexen-1-ol ((Z)-CH3CH2CH=CHCH2CH2OH). (k1), 1-penten-3-ol (CH3CH2CH(OH)CH=CH2) (k2), (E)-2-penten-1-ol ((E)-CH3CH2CH=CHCH2OH) (k3), and (E)-2-hexen-1-ol ((E)-CH3CH2CH2CH=CHCH2OH) (k4), unsaturated alcohols that are emitted into the atmosphere following vegetation wounding, are reported. Rate coefficients were measured under pseudo-first-order conditions in OH over the temperature range 243–404 K at pressures between 20 and 100 Torr (He) using pulsed laser photolysis (PLP) to produce OH radicals and laser induced fluorescence (LIF) to monitor the OH temporal profile. The obtained rate coefficients were independent of pressure with negative temperature dependences that are well described by the Arrhenius expressions

k1(T) = (1.3 ± 0.1) × 10−11 exp[(580 ± 10)/T]; k1(297K) = (1.06 ± 0.12) × 10−10
k2(T) = (6.8 ± 0.7) × 10−12 exp[(690 ± 20)/T]; k2(297K) = (7.12 ± 0.73) × 10−11
k3(T) = (6.8 ± 0.8) × 10−12 exp[(680 ± 20)/T]; k3(297K) = (6.76 ± 0.70) × 10−11
k4(T) = (5.4 ± 0.6) × 10−12 exp[(690 ± 20)/T]; k4(297K) = (6.15 ± 0.75) × 10−11

(in units of cm3 molecule−1 s−1). The quoted uncertainties are at the 2σ (95% confidence) level and include estimated systematic errors. The rate coefficients obtained in this study are compared with literature values where possible.


Citation: Davis, M. E. and Burkholder, J. B.: Rate coefficients for the gas-phase reaction of OH with Z-3-hexen-1-ol, 1-penten-3-ol, E-2-penten-1-ol, and E-2-hexen-1-ol between 243 and 404 K, Atmos. Chem. Phys. Discuss., 11, 2377-2405, doi:10.5194/acpd-11-2377-2011, 2011.
 
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