Rates of reaction of butyl radicals with molecular oxygen

Lenhardt, Terence M.; McDade, Charles E.; Bayes, Kyle D.

doi:10.1063/1.438848

Cited by 86 publications

(68 citation statements)

References 20 publications

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“…4 and 5 are quantitatively converted to the corresponding peroxy isomer. [22][23][24] To a first approximation, it is also reasonable to assume that the oscillator strength of the A − X transition is isomer independent. In this case the intensity of the respective CRDS peroxy radical spectra is a good measure of…”

Section: Atom Attack On Butanementioning

confidence: 99%

Near-IR Cavity Ringdown Spectroscopy and Kinetics of the Isomers and Conformers of the Butyl Peroxy Radical

Glover

Miller

2005

J. Phys. Chem. A

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Cavity ringdown spectra of butyl peroxy radicals have been obtained for their A − X electronic transition in the near IR. The radicals were produced by two independent chemical methods, allowing unambiguous assignment of the spectra of the four butyl peroxy isomers with probable conformer assignments also possible for a number of cases. Using the analyzed spectra semi-quantative, isomer specific rate constants for butyl peroxy self-reaction were measured, as was the relative reactivity of the various sorts of H atoms in butane to Cl atom attack.

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Section: Atom Attack On Butanementioning

confidence: 99%

Near-IR Cavity Ringdown Spectroscopy and Kinetics of the Isomers and Conformers of the Butyl Peroxy Radical

Glover

Miller

2005

J. Phys. Chem. A

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“…The preferred value is based on the study of Lenhardt et al (1980). Because this is the only study of this reaction, we assign large error limits.…”

Section: Comments On Preferred Valuesmentioning

confidence: 99%

Evaluated kinetic and photochemical data for atmospheric chemistry: Volume II – gas phase reactions of organic species

et al. 2006

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Abstract. This article, the second in the series, presents kinetic and photochemical data evaluated by the IUPAC Subcommittee on Gas Kinetic Data Evaluation for Atmospheric Chemistry. It covers the gas phase and photochemical reactions of Organic species, which were last published in 1999, and were updated on the IUPAC website in late 2002, and subsequently during the preparation of this article. The article consists of a summary table of the recommended rate coefficients, containing the recommended kinetic parameters for the evaluated reactions, and eight appendices containing the data sheets, which provide information upon which the recommendations are made.

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“…4 Bayes and co-workers have previously measured the rate constants for the reaction of butyl radicals generated by laser flash photolysis with O 2 in the gas phase at room temperature by photoionisation mass spectrometry. 36 Their results for n-butyl (0.75±0.14), sec-butyl resulting in a reaction efficiency of 6.0%. This value is less than half that for the reaction of 3,…”

Section: Radical-radical Combination Reactionsmentioning

confidence: 99%

Investigation of the gas phase reactivity of the 1-adamantyl radical using a distonic radical anion approach

Harman

Blanksby

2007

Org. Biomol. Chem.

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The gas phase reactions of the bridgehead 3-carboxylato-1-adamantyl radical anion were observed with a series of neutral reagents using a modified electrospray ionisation linear ion trap mass spectrometer. This distonic radical anion was observed to undergo processes suggestive of radical reactivity including radicalradical combination reactions, substitution reactions and addition to carbon-carbon double bonds. The rate constants for reactions of the 3-carboxylato-1-adamantyl radical anion with the following reagents were measured (in units 10 12 cm3 molecule 1 s 1): 18O2 (85±4), NO (38.4±0.4), I2 (50±50), Br2 (8±2), CH3SSCH3 (12±2), styrene (1.20±0.03), CHCl3 (H abstraction 0.41±0.06, Cl abstraction 0.65±0.1), CDCl3 (D abstraction 0.035±0.01, Cl abstraction 0.723±0.005), allyl bromide (Br abstraction 0.53±0.04, allylation 0.25±0.01). Collision rates were calculated and reaction efficiencies are also reported. This study represents the first quantitative measurement of the gas phase reactivity of a bridgehead radical and suggests that distonic radical anions are good models for the study of their elusive uncharged analogues. SummaryThe gas phase reactions of the bridgehead 3-carboxylato-1-adamantyl radical anion were observed with a series of neutral reagents using a modified electrospray ionisation linear ion trap mass spectrometer. This distonic radical anion was observed to undergo processes suggestive of radical reactivity including radical-radical combination reactions, substitution reactions and addition to carbon-carbon double bonds. The rate constants for reactions of the 3-carboxylato-1-adamantyl radical anion with the following reagents were measured (in units 10

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Rates of reaction of butyl radicals with molecular oxygen

Cited by 86 publications

References 20 publications

Near-IR Cavity Ringdown Spectroscopy and Kinetics of the Isomers and Conformers of the Butyl Peroxy Radical

Near-IR Cavity Ringdown Spectroscopy and Kinetics of the Isomers and Conformers of the Butyl Peroxy Radical

Evaluated kinetic and photochemical data for atmospheric chemistry: Volume II – gas phase reactions of organic species

Investigation of the gas phase reactivity of the 1-adamantyl radical using a distonic radical anion approach

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