OH reaction rate constants and UV absorption cross-sections of unsaturated esters

Teruel, Mariano A.; Lane, Silvia I.; Mellouki, Abdelwahid; Solignac, G.; Bras, G. Le

doi:10.1016/j.atmosenv.2006.03.003

Cited by 56 publications

(57 citation statements)

References 13 publications

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“…Photolytic loss of the esters will be negligible since they are photolytically stable in the actinic region of the electromagnetic spectrum [28]. However, aldehydes absorb actinic radiation in the range 270-340 nm and thus the estimates of the degradation under atmospheric conditions must include the photolysis contribution [29,30].…”

Section: Discussionmentioning

confidence: 99%

FTIR gas-phase kinetic study of the reactions of Cl atoms with (CH3)2CCHC(O)H and CH3CHCHC(O)OCH3

Blanco

Barnes

Teruel

2010

Chemical Physics Letters

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Section: Discussionmentioning

confidence: 99%

FTIR gas-phase kinetic study of the reactions of Cl atoms with (CH3)2CCHC(O)H and CH3CHCHC(O)OCH3

Blanco

Barnes

Teruel

2010

Chemical Physics Letters

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“…The available kinetic data shows that the reaction with OH radicals is the dominant degradation process of unsaturated esters in the atmosphere with lifetimes of a few hours. 24 However, the reaction with ozone can constitute an important sink for these compounds in some areas (such as the highly polluted urban areas where these esters might be present) where the average concentration of ozone could be much higher than 50 ppb used to estimate the lifetimes here). The short atmospheric lifetimes indicate that these compounds will be oxidized near their emission sources.…”

Section: Atmospheric Implicationsmentioning

confidence: 98%

Kinetics and Products of Gas-Phase Reactions of Ozone with Methyl Methacrylate, Methyl Acrylate, and Ethyl Acrylate

et al. 2010

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The kinetics and products of the gas-phase reactions of ozone with methyl methacrylate, methyl acrylate, and ethyl acrylate have been investigated at 760 Torr total pressure of air and 294 +/- 2 K. The rate coefficients obtained (in cm(3) molecule(-1) s(-1) units) were as follows: k(methyl methacrylate) = (6.7 +/- 0.9) x 10(-18), k(methyl acrylate) = (0.95 +/- 0.07) x 10(-18), and k(ethyl acrylate) = (1.3 +/- 0.1) x 10(-18). In addition to formaldehyde being observed as a product of the three reactions, the other major reaction products were methyl pyruvate from reaction of ozone with methyl methacrylate, methyl glyoxylate from reaction of ozone with methyl acrylate, and ethyl glyoxylate from reaction of ozone with ethyl acrylate. Possible reaction mechanisms leading to the observed products are presented and discussed.

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“…Moreover, in continental regions where large amounts of reactive chlorine compounds were found in the lowest part of the atmosphere, [12,13] reaction with Cl atoms may be a more important removal pathway than previously thought. To date, relatively few studies [14][15][16][17][18][19][20][21] have been carried out on the temperature dependence of the reaction of OH with esters.…”

Section: Introductionmentioning

confidence: 99%

Rate Coefficients for Reactions of OH and Cl with Esters

Peng

Daële

et al. 2010

ChemPhysChem

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Rate coefficients for the gas-phase reactions of OH radicals with n-propyl butyrate (k(1)), n-butyl propionate (k(2)) and n-butyl butyrate (k(3)) are measured by both absolute and relative methods. The kinetics data obtained over the temperature range 273-372 K are used to derive the Arrhenius expressions (in units of cm(3) molecule(-1) s(-1)): k(1)=(1.92±0.50)×10(-12) exp[(400±80)/T], k(2)=(2.98±1.32)×10(-12) exp[(209±139)/T] and k(3)=(5.35±3.34)×10(-12) exp[(180±194)/T]. In addition, the rate coefficients for reactions of the three esters with Cl atoms are determined by the relative-rate method at room temperature and atmospheric pressure. The rate coefficients measured are (in units of 10(-10) cm(3) molecule(-1) s(-1)) as follows: n-propyl butyrate (1.4±0.1), n-butyl propionate (1.6±0.1), and n-butyl butyrate (1.7±0.1). The values obtained are presented, compared with previous determinations and discussed. Reactivity trends and atmospheric implications resulting from this work are also presented.

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OH reaction rate constants and UV absorption cross-sections of unsaturated esters

Cited by 56 publications

References 13 publications

FTIR gas-phase kinetic study of the reactions of Cl atoms with (CH3)2CCHC(O)H and CH3CHCHC(O)OCH3

FTIR gas-phase kinetic study of the reactions of Cl atoms with (CH3)2CCHC(O)H and CH3CHCHC(O)OCH3

Kinetics and Products of Gas-Phase Reactions of Ozone with Methyl Methacrylate, Methyl Acrylate, and Ethyl Acrylate

Rate Coefficients for Reactions of OH and Cl with Esters

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