1986
DOI: 10.1002/kin.550180303
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Rate constants for the gas‐phase reactions of the OH radical with a series of monoterpenes at 294 ± 1 K

Abstract: Using a relative rate technique, rate constants for the gas-phase reactions of the OH radical with a series of monoterpenes have been determined in one atmosphere of air at 294 5 1 K. Relative to a rate constant for the reaction of OH radicals with 2,3-dimethyl-2-butene of 1.12 lo-'' cm3 molecule-' sec-', the rate constants obtained were (in units of lo-" cm3 molecule-' sec-'1: a-pinene, 5.45 ? 0.32; P-pinene, 7.95 * 0.52; A3-carene, 8.70 5 0.43; d-limonene, 16.9 ? 0.5; a-terpinene, 36.0 t 4.0; y-terpinene, 17… Show more

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Cited by 88 publications
(91 citation statements)
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“…Regarding k 2 , there is excellent agreement between the results of this work and those obtained by the relative-rate technique (Atkinson et al, 1986;Gill and Hites, 2002;Montenegro et al, 2012;Winer et al, Table 3) and the 44 determinations of k 2 (297-364 K) from Gill and Hites (2002), which are instead represented (purple dotted line) by a fit with (Eq. 4).…”
Section: Comparison Of K 1 With Literature Valuessupporting
confidence: 78%
See 1 more Smart Citation
“…Regarding k 2 , there is excellent agreement between the results of this work and those obtained by the relative-rate technique (Atkinson et al, 1986;Gill and Hites, 2002;Montenegro et al, 2012;Winer et al, Table 3) and the 44 determinations of k 2 (297-364 K) from Gill and Hites (2002), which are instead represented (purple dotted line) by a fit with (Eq. 4).…”
Section: Comparison Of K 1 With Literature Valuessupporting
confidence: 78%
“…Within combined uncertainties there is reasonable agreement between this result and three previous absolute kinetic studies of (R2) (Chuong et al, 2002;Davis and Stevens, 2005;Kleindienst et al, 1982), all of which relied on manometric determinations of [α-pinene] to derive k 2 . The IUPAC data evaluation panel currently recommends a value of k 2 (298 K) = 5.3 × 10 −11 cm 3 molecule −1 s −1 (Ammann et al, 2016;Atkinson et al, 2006b), based on results from Atkinson et al (1986), Gill and Hites (2002) and Kleindienst et al (1982), with an associated log k 2 = 0.15 or approximately + 40, −30 %. A re-evaluation taking into account the data from this work and from the recent (Montenegro et al, 2012) study yields (via a weighted mean) k 2 (298 K) = 5.4 × 10 −11 cm 3 molecule −1 s −1 ; a considerably smaller log(k 2 ) of 0.06 (around ±15 %) would encompass all experimentally determined ambient temperature k 2 values.…”
Section: Comparison Of K 1 With Literature Valuesmentioning
confidence: 99%
“…Multiplying the mixing ratios of these compounds by their OH rate constants provides a measure of relative OH reactivities Fantechi et al, 1998;Ravishankara and Davis, 1978;Atkinson et al, 1986Atkinson et al, , 1997Baulch et al, 1994;Huang et al, 2009;Picquet et al, 1998). We utilized fluxes instead of concentrations to provide a measure of OH reactivity that is independent of elevated concentrations associated with pollution events and more representative of site-specific sources.…”
Section: In the Context Of Prior Beachon Campaignsmentioning
confidence: 99%
“…During the night, the absolute concentrations of isoprene, monoterpenes and OVOCs were reduced relative to the daytime, and the fraction of volatile organic carbon supplied as OVOCs and monoterpenes increased, to 35 % and 20 % respectively, while the isoprene contribution decreased, to 13 %. The reactivity of each VOC with respect to OH was calculated for each instantaneous measured mixing ratio as the product of the VOC concentration (converted from ppt to molec cm −3 ) and the relevant published rate constant, k OH (cm 3 molec −1 s −1 ) (Atkinson et al, 1986;Atkinson, 1997;Atkinson and Arey, 2003). Figure 7 shows the average day and night resolved distribution of the total OH reactivity with respect to VOCs, based upon all measurements from OP3-III.…”
Section: Voc Carbon Budget and Oh Reactivity Within The Natural Rainfmentioning
confidence: 99%