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Cited by 22 publications
(50 citation statements)
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“…Recycling of HO 2 results in an increased OH yield, especially when ozonolysis yields are low as it is the case for ethene ozonolysis. Moreover, the OH yields determined agree with the values obtained from ab initio calculations [Gutbrod et al, 1997;Olzmann et al, 1997].…”
Section: Yields Of Oh and Hosupporting
confidence: 83%
See 1 more Smart Citation
“…Recycling of HO 2 results in an increased OH yield, especially when ozonolysis yields are low as it is the case for ethene ozonolysis. Moreover, the OH yields determined agree with the values obtained from ab initio calculations [Gutbrod et al, 1997;Olzmann et al, 1997].…”
Section: Yields Of Oh and Hosupporting
confidence: 83%
“…In other studies OH radicals are scavenged by components, whose turnover is observed to deduce the OH yields. The formation yield of cyclohexanol and cyclohexanone from cyclohexane [Atkinson and Aschmann, 1993], butanone from 2-butanol [Chew and Atkinson, 1996;Aschmann et al, 2002], and CO 2 from CO [Gutbrod et al, 1997] was observed to monitor OH production. When fast reacting tracers like trimethylbenzene [Paulson et al, 1999;Rickard et al, 1999] are used, OH yields can be deduced from the diminution in concentration of these species.…”
Section: Introductionmentioning
confidence: 99%
“…Experimental highpressure limit rates are unknown for these reactions. Conditions for known experiments are around the standard conditions of 298 K and 1 atm [40][41][42][43][44][45][46][47][48][49][50][51][52][53][54]. Considerations at higher temperatures and pressures have never been made for these reactions, but will be considered here in the low-temperature combustion of dimethyl ether.…”
Section: Resultsmentioning
confidence: 99%
“…From this work, we know that the barrier to formation of H _ CO and ÁOH (30.8 kcal mol À1 ) [74] is less favourable than the cyclic rearrangement to form dioxirane (19.0 kcal mol À1 ) [15]. However, ÁOH formation in ethylene ozonolysis has been detected experimentally [40][41][42][43][44][45][46][47]. The measured branching ratio for production of ÁOH under atmospheric conditions is about 12-40% [48].…”
Section: Molecular Physics 383mentioning
confidence: 99%
“…However, substantial insight into CI behaviour, in particular relative rates of bimolecular reactions, has also accrued through indirect methods, such as simulation chamber and laboratory relative rate kinetics studies. Scaled M06-2X ZPE energies are used throughout Table 6 Total rate coefficients k(T) (cm 3 molecule À1 s À1 ) for the CI + CO reaction forming CO 2 either directly or through the cycloadduct, where the Arrhenius expression is valid for T = 250-350 K Reaction k (298 K) k(T) 71 used very high CO mole fractions (up to 40%, in a 1 bar total pressure He/O 2 mixture) as a scavenger for OH radicals in the ozonolysis of a range of small alkenes in a small (70 litre) darkened glass reactor, detecting the resulting increase in CO 2 upon addition of CO as a marker for OH formation. The impact (or lack thereof) of the presence of CO upon observed product yields in alkene ozonolysis systems therefore provides some constraint upon the possible rate of the CO + CI reaction, as discussed below and summarized in Table 7.…”
Section: D Experimental Evidence For Sci + Comentioning
confidence: 99%