Rate Coefficients for the Gas-Phase Reaction of Chlorine Atoms with a Series of Methoxylated Aromatic Compounds

2014 ◽  
Vol 118 (10) ◽  
pp. 1777-1784 ◽  
Author(s):  
Amélie Lauraguais ◽  
Iustinian Bejan ◽  
Ian Barnes ◽  
Peter Wiesen ◽  
Cécile Coeur-Tourneur ◽  
...  
Keyword(s):  
Gas Phase ◽  
Aromatic Compounds ◽  
Rate Coefficients ◽  
Phase Reaction ◽  
Chlorine Atoms ◽  
Gas Phase Reaction ◽  
Methoxylated Aromatic

Temperature-dependent rate coefficients and mechanism for the gas-phase reaction of chlorine atoms with acetone

2010 ◽  
Vol 42 (12) ◽  
pp. 724-734 ◽  
Author(s):  
Manolis N. Romanias ◽  
Vassileios G. Stefanopoulos ◽  
Dimitrios K. Papanastasiou ◽  
Vassileios C. Papadimitriou ◽  
Panos Papagiannakopoulos
Keyword(s):  
Gas Phase ◽  
Rate Coefficients ◽  
Phase Reaction ◽  
Temperature Dependent ◽  
Chlorine Atoms ◽  
Gas Phase Reaction ◽  
Dependent Rate

scholarly journals Reactive quenching of electronically excited NO<sub>2</sub><sup>∗</sup> and NO<sub>3</sub><sup>∗</sup> by H<sub>2</sub>O as potential sources of atmospheric HO<sub><i>x</i></sub> radicals

2018 ◽  
Vol 18 (19) ◽  
pp. 14005-14015 ◽  
Author(s):  
Terry J. Dillon ◽  
John N. Crowley
Keyword(s):  
Gas Phase ◽  
Laser Excitation ◽  
Pulsed Laser ◽  
Work Rate ◽  
Rate Coefficients ◽  
Phase Reaction ◽  
Gas Phase Reaction ◽  
Upper Limit ◽  
Upper Limits ◽  
Electronically Excited

Abstract. Pulsed laser excitation of NO2 (532–647 nm) or NO3 (623–662 nm) in the presence of H2O was used to initiate the gas-phase reaction NO2∗+H2O → products (Reaction R5) and NO3∗+H2O → products (Reaction R12). No evidence for OH production in Reactions (R5) or (R12) was observed and upper limits for OH production of k5b/k5<1×10-5 and k12b/k12<0.03 were assigned. The upper limit for k5b∕k5 renders this reaction insignificant as a source of OH in the atmosphere and extends the studies (Crowley and Carl, 1997; Carr et al., 2009; Amedro et al., 2011) which demonstrate that the previously reported large OH yield by Li et al. (2008) was erroneous. The upper limit obtained for k12b∕k12 indicates that non-reactive energy transfer is the dominant mechanism for Reaction (R12), though generation of small but significant amounts of atmospheric HOx and HONO cannot be ruled out. In the course of this work, rate coefficients for overall removal of NO3∗ by N2 (Reaction R10) and by H2O (Reaction R12) were determined: k10=(2.1±0.1)×10-11 cm3 molecule−1 s−1 and k12=(1.6±0.3)×10-10 cm3 molecule−1 s−1. Our value of k12 is more than a factor of 4 smaller than the single previously reported value.

Kinetics of the gas phase reaction of chlorine atoms with a series of alkenes, alkynes and aromatic species at 295 K

1988 ◽  
Vol 45 (2) ◽  
pp. 167-175 ◽  
Author(s):  
Timothy J. Wallington ◽  
Loretta M. Skewes ◽  
Walter O. Siegl
Keyword(s):  
Gas Phase ◽  
Phase Reaction ◽  
Chlorine Atoms ◽  
Gas Phase Reaction ◽  
Aromatic Species ◽  
Kinetics Of

Rate coefficients for the gas-phase reaction of OH radicals with selected dihydroxybenzenes and benzoquinones

2000 ◽  
Vol 32 (11) ◽  
pp. 696-702 ◽  
Author(s):  
R. I. Olariu ◽  
I. Barnes ◽  
K. H. Becker ◽  
B. Klotz
Keyword(s):  
Gas Phase ◽  
Rate Coefficients ◽  
Oh Radicals ◽  
Phase Reaction ◽  
Gas Phase Reaction

Effect of composition and pressure on gas-phase reaction rate coefficients

1965 ◽  
Vol 20 (12) ◽  
pp. 1143-1145 ◽  
Author(s):  
David M. Mason
Keyword(s):  
Gas Phase ◽  
Reaction Rate ◽  
Rate Coefficients ◽  
Phase Reaction ◽  
Gas Phase Reaction

scholarly journals Direct and relative rate coefficients for the gas-phase reaction of OH radicals with 2-methyltetrahydrofuran at room temperature

2016 ◽  
Vol 119 (1) ◽  
pp. 5-18
Author(s):  
Ádám Illés ◽  
Mária Farkas ◽  
Gábor László Zügner ◽  
Gyula Novodárszki ◽  
Magdolna Mihályi ◽  
...  
Keyword(s):  
Gas Phase ◽  
Room Temperature ◽  
Relative Rate ◽  
Rate Coefficients ◽  
Oh Radicals ◽  
Phase Reaction ◽  
Gas Phase Reaction ◽  
Relative Rate Coefficients

Experimental and theoretical rate coefficients for the gas phase reaction of β-Pinene with OH radical

2013 ◽  
Vol 79 ◽  
pp. 161-171 ◽  
Author(s):  
Manas Ranjan Dash ◽  
B. Rajakumar
Keyword(s):  
Gas Phase ◽  
Rate Coefficients ◽  
Phase Reaction ◽  
Oh Radical ◽  
Gas Phase Reaction

Temperature Dependent Rate Coefficients for the Gas-Phase Reaction of the OH Radical with Linear (L2, L3) and Cyclic (D3, D4) Permethylsiloxanes

2018 ◽  
Vol 122 (17) ◽  
pp. 4252-4264 ◽  
Author(s):  
François Bernard ◽  
Dimitrios K. Papanastasiou ◽  
Vassileios C. Papadimitriou ◽  
James B. Burkholder
Keyword(s):  
Gas Phase ◽  
Rate Coefficients ◽  
Phase Reaction ◽  
Oh Radical ◽  
Temperature Dependent ◽  
Gas Phase Reaction ◽  
Dependent Rate

Pressure dependency of gas phase reaction rate coefficients

1972 ◽  
Vol 27 (1) ◽  
pp. 89-108 ◽  
Author(s):  
George M. Simmons ◽  
David M. Mason
Keyword(s):  
Gas Phase ◽  
Reaction Rate ◽  
Rate Coefficients ◽  
Phase Reaction ◽  
Gas Phase Reaction ◽  
Pressure Dependency

scholarly journals Rate coefficients for the gas-phase reaction of OH with <i>Z</i>-3-hexen-1-ol, 1-penten-3-ol, <i>E</i>-2-penten-1-ol, and <i>E</i>-2-hexen-1-ol between 243 and 404 K

2011 ◽  
Vol 11 (1) ◽  
pp. 2377-2405 ◽  
Author(s):  
M. E. Davis ◽  
J. B. Burkholder
Keyword(s):  
Gas Phase ◽  
Negative Temperature ◽  
Rate Coefficients ◽  
Oh Radicals ◽  
Phase Reaction ◽  
Oh Radical ◽  
Gas Phase Reaction ◽  
First Order ◽  
Unsaturated Alcohols ◽  
Temperature Dependences

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.

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