Laser photolysis/resonance fluorescence study of the rate constants for the reactions of hydroxyl radicals with ethene and propene

Zellner, R.; Lorenz, K.

doi:10.1021/j150649a028

Cited by 71 publications

(77 citation statements)

References 2 publications

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“…As illustrated in Fig. 4.11, the resulting predictions for the full temperature and pressure dependence were in quantitative agreement with the experimental data, [139][140][141][142] including that from Leone and coworkers in the 96 to 165 K region.…”

Section: Radical-molecule Reactionssupporting

confidence: 78%

Theory of Low Temperature Gas-Phase Reactions

Klippenstein¹,

Georgievskii²

2008

Low Temperatures and Cold Molecules

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Section: Radical-molecule Reactionssupporting

confidence: 78%

Theory of Low Temperature Gas-Phase Reactions

Klippenstein¹,

Georgievskii²

2008

Low Temperatures and Cold Molecules

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“…Earlier extrapolations towards the high pressure-limiting rate constant have been performed in the literature based on experimental low pressure data only. Negative activation energies of -3.8 [29], -2.9 [40], -2.5 [42] kJ mol-1 have been suggested for the extrapolated high pressure limits. As the utilized data base did not cover higher pressures, these extrapolations strongly depend on the postulated falloff and broadening effects, which generally also show negative temperature coefficients.…”

Section: Experimental Techniquementioning

confidence: 99%

The High Pressure Range of the Addition of OH to C₂H₂ and C₂H₄

Fülle

Hamann

Hippler

et al. 1997

Ber Bunsenges Phys Chem

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The kinetics of the bimolecular reactions OH+C 2H2+M ... C 2H20H+M (I) and OH+C 2H4+M ... C 2H40H + M (2) have been investigated over an extended pressure (1-130 bar) and temperature (300-800 K) range. The OH radicals have been generated by laser flash photolysis of suited precursors and their decays have been measured by saturated laser-induced fluorescence (SLIF) under pseudo-first-order conditions. The pressure dependences have been analyzed by constructing falloff curves at fixed temperatures leading to reliable extrapolations towards the high pressure limiting rate constants k co' In the given temperature range these rate constants are represented as k l • co = 3.8xlO-11 exp(-910KIT)cm 3 molecule-I S-I and as k 2.co = 1.0xlO-11 em? molecule -I s -I . At temperatures above 700 K biexponential decay curves have been obtained. The chemical equilibria of reactions (1) and (2)

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“…The OH q ethene system will also be calculated for comparison, because experimental data are available for this system at low pressure in an inert atmosphere. 13 The contribution of the entropy factor to the selectivity will be discussed.…”

Section: Introductionmentioning

confidence: 99%