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Baptista A, Gibilisco RG, Vega-Teijido M, Ventura ON, Teruel MA. Atmospheric oxidation of furanones by •OH and •Cl radicals: In situ FTIR rate coefficient determinations, SAR and theoretical studies. CHEMOSPHERE 2023; 338:139500. [PMID: 37480954 DOI: 10.1016/j.chemosphere.2023.139500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/06/2023] [Accepted: 07/12/2023] [Indexed: 07/24/2023]
Abstract
Gas-phase kinetics of the overall reactions of •OH and •Cl radicals with dihydrofuran-3(2H)-one (oxolan-3-one) and dihydro-2-methyl-3(2H)-furanone (2MTHF-3-one) were studied at 298 K and atmospheric pressure. The rate coefficients were determined using the relative method in a 480 L multipass glass reactor coupled to an FT-IR detection system. The rate coefficients found for oxolan 3-one and 2MTHF-one with •OH radicals (k1 and k2) and with •Cl atoms (k3 and k4) at 298 K and atmospheric pressure (in cm3 molecule-1 s-1) were: k1 = (1.86 ± 0.29) × 10-11, k2 = (2.64 ± 0.47) × 10-11, k3= (1.15 ± 0.28) × 10 -10, and k4 = (1.33 ± 0.32) × 10-10, respectively. Reactivity trends were developed by comparison with other similar structures and Fukui indices employed to determine the reactivity of different sites on the ring. The singularity of the reaction with •OH was assessed by computational studies which showed the formation of several stable hydrogen bonded complexes, explaining the difference with the reaction with the •Cl atom. SAR estimations of the rate coefficients were calculated and compared to the experimental values.
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Affiliation(s)
- Andrea Baptista
- (L.U.Q.C.A) Laboratorio Universitario de Química y Contaminación del Aire, Instituto de Investigaciones en Fisicoquímica de Córdoba (I.N.F.I.Q.C.), Dpto. De Fisicoquímica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000, Córdoba, Argentina
| | - Rodrigo G Gibilisco
- Institute for Atmospheric and Environmental Research, University of Wuppertal, DE-42097 ,Wuppertal, Germany
| | - Mauricio Vega-Teijido
- Computational Chemistry and Biology Group (CCBSG), Facultad de Química, UdelaR, Isidoro de María 1614, Montevideo, Uruguay
| | - Oscar N Ventura
- Computational Chemistry and Biology Group (CCBSG), Facultad de Química, UdelaR, Isidoro de María 1614, Montevideo, Uruguay
| | - Mariano A Teruel
- (L.U.Q.C.A) Laboratorio Universitario de Química y Contaminación del Aire, Instituto de Investigaciones en Fisicoquímica de Córdoba (I.N.F.I.Q.C.), Dpto. De Fisicoquímica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000, Córdoba, Argentina.
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2
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Ren Y, Wang J, Grosselin B, Daële V, Mellouki A. Kinetic and product studies of Cl atoms reactions with a series of branched Ketones. J Environ Sci (China) 2018; 71:271-282. [PMID: 30195685 DOI: 10.1016/j.jes.2018.03.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 03/22/2018] [Accepted: 03/23/2018] [Indexed: 06/08/2023]
Abstract
The rate constants for the Cl atom reaction with three branched ketones have been measured at 298±2K and 760Torr using the relative rate method in the absence of NO. The rate constants values obtained (in units of 10-10cm3/(molecule·sec)) are: k(2-methyl-3-pentanone)=1.07±0.26, k(3-methyl-2-pentanone)=1.21±0.26, and k(4-methyl-2-pentanone)=1.35±0.27. Combining the chemical kinetic data obtained by this study with those reported for other ketones, a revised Structure Activity Relationship (SAR) parameter and R group reactivity (kR) of R(O)R' and CHx (x=1, 2, 3) group reactivity (kCHx) toward Cl atoms were proposed. In addition, the products from the three reactions in the presence of NO were also identified and quantified by using PTR-ToF-MS and GC-FID, and the yields of the identified products are: acetone (39%±8%)+ethanal (78%±12%), 2-butanone (22%±2%)+ethanal (75%±10%)+propanal (14%±1%) and acetone (26%±3%)+2-methylpropanal (24%±2%), for Cl atoms reaction with 2-methyl-3-pentanone, 3-methyl-2-pentanone and 4-methyl-2-pentanone, respectively. Based on the obtained results, the reaction mechanisms of Cl atoms with these three ketones are proposed.
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Affiliation(s)
- Yangang Ren
- Institut de Combustion, Aérothermique, Réactivité et Environnement (ICARE), CNRS (UPR 3021), 1C Avenue de la Recherche Scientifique, 45071 Orléans Cedex 2, France
| | - Jinhe Wang
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China
| | - Benoit Grosselin
- Institut de Combustion, Aérothermique, Réactivité et Environnement (ICARE), CNRS (UPR 3021), 1C Avenue de la Recherche Scientifique, 45071 Orléans Cedex 2, France
| | - Véronique Daële
- Institut de Combustion, Aérothermique, Réactivité et Environnement (ICARE), CNRS (UPR 3021), 1C Avenue de la Recherche Scientifique, 45071 Orléans Cedex 2, France
| | - Abdelwahid Mellouki
- Institut de Combustion, Aérothermique, Réactivité et Environnement (ICARE), CNRS (UPR 3021), 1C Avenue de la Recherche Scientifique, 45071 Orléans Cedex 2, France.
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3
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Rimondino GN, Henao DP, Peláez WJ, Argüello GA, Malanca FE. Photo-oxidation of Dimethyl Malonate Initiated by Chlorine Atoms in Gas Phase: Kinetics and Mechanism. J Phys Chem A 2017; 121:8577-8582. [DOI: 10.1021/acs.jpca.7b06595] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Guido N. Rimondino
- Instituto de Investigaciones en Fisicoquímica de Córdoba (INFIQC) CONICET, Departamento de Físico Química, Facultad
de Ciencias Químicas (Universidad Nacional de Córdoba),
Ciudad Universitaria (X5000HUA), Córdoba, República Argentina
| | - Diana P. Henao
- Instituto de Investigaciones en Fisicoquímica de Córdoba (INFIQC) CONICET, Departamento de Físico Química, Facultad
de Ciencias Químicas (Universidad Nacional de Córdoba),
Ciudad Universitaria (X5000HUA), Córdoba, República Argentina
| | - Walter J. Peláez
- Instituto de Investigaciones en Fisicoquímica de Córdoba (INFIQC) CONICET, Departamento de Físico Química, Facultad
de Ciencias Químicas (Universidad Nacional de Córdoba),
Ciudad Universitaria (X5000HUA), Córdoba, República Argentina
| | - Gustavo A. Argüello
- Instituto de Investigaciones en Fisicoquímica de Córdoba (INFIQC) CONICET, Departamento de Físico Química, Facultad
de Ciencias Químicas (Universidad Nacional de Córdoba),
Ciudad Universitaria (X5000HUA), Córdoba, República Argentina
| | - Fabio E. Malanca
- Instituto de Investigaciones en Fisicoquímica de Córdoba (INFIQC) CONICET, Departamento de Físico Química, Facultad
de Ciencias Químicas (Universidad Nacional de Córdoba),
Ciudad Universitaria (X5000HUA), Córdoba, República Argentina
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4
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Farrugia L, Bejan I, Smith S, Medeiros D, Seakins P. Revised structure activity parameters derived from new rate coefficient determinations for the reactions of chlorine atoms with a series of seven ketones at 290 K and 1 atm. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2015.09.055] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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5
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Huang M, Zhang W, Gu X, Hu C, Zhao W, Wang Z, Fang L. Size distribution and chemical composition of secondary organic aerosol formed from C1-initiated oxidation of toluene. J Environ Sci (China) 2012; 24:860-864. [PMID: 22893963 DOI: 10.1016/s1001-0742(11)60840-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Secondary organic aerosol (SOA) formed from C1-initiated oxidation of toluene was investigated in a home-made smog chamber. The size distribution and chemical composition of SOA particles were measured using aerodynamic particle sizer spectrometer and the aerosol laser time-of-flight mass spectrometer (ALTOFMS), respectively. According to a large number of single aerosol diameter and mass spectra, the size distribution and chemical composition of SOA were obtained statistically. Experimental results showed that SOA particles created by C1-initiated oxidation of toluene is predominantly in the form of fine particles, which have diameters less than 2.5 microm (i.e., PM2.5), and glyoxal, benzaldehyde, benzyl alcohol, benzoquinone, benzoic acid, benzyl hydroperoxide and benzyl methyl nitrate are the major products components in the SOA. The possible reaction mechanisms leading to these products are also proposed.
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Affiliation(s)
- Mingqiang Huang
- Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Optics & Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China.
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Im Y, Jang M, Delcomyn CA, Henley MV, Hearn JD. The effects of active chlorine on photooxidation of 2-methyl-2-butene. THE SCIENCE OF THE TOTAL ENVIRONMENT 2011; 409:2652-2661. [PMID: 21524786 DOI: 10.1016/j.scitotenv.2011.03.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2010] [Revised: 03/19/2011] [Accepted: 03/26/2011] [Indexed: 05/30/2023]
Abstract
Active chlorine comprising hypochlorite (OCl⁻), hypochlorous acid (HOCl) and chlorine (Cl₂) is the active constituent in bleach formulations for a variety of industrial and consumer applications. However, the strong oxidative reactivity of active chlorine can cause adverse effects on both human health and the environment. In this study, aerosolized Oxone® [2KHSO₅, KHSO₄, K₂SO₄] with saline solution has been utilized to produce active chlorine (HOCl and Cl₂). To investigate the impact of active chlorine on volatile organic compound (VOC) oxidation, 2-methyl-2-butene (MB) was photoirradiated in the presence of active chlorine using a 2-m³ Teflon film indoor chamber. The resulting carbonyl products produced from photooxidation of MB were derivatized with O-(2,3,4,5,6-pentafluorobenzyl) hydroxyamine hydrochloride (PFBHA) and analyzed using gas chromatograph-ion trap mass spectrometer (GC/ITMS). The photooxidation of MB in the presence of active chlorine was simulated with an explicit kinetic model using a chemical solver (Morpho) which included both Master Chemical Mechanism (MCM) and Cl radical reactions. The reaction rate constants of a Cl radical with MB and its oxidized products were estimated using a Structure-Reactivity Relationship method. Under dark conditions no effect of active chlorine on MB oxidation was apparent, whereas under simulated daylight conditions (UV irradiation) rapid MB oxidation was observed due to photo-dissociation of active chlorine. The model simulation agrees with chamber data showing rapid production of oxygenated products that are characterized using GC/ITMS. Ozone formation was enhanced when MB was oxidized in the presence of irradiated active chlorine and NO(x).
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Affiliation(s)
- Yunseok Im
- Department of Environmental Engineering Sciences, University of Florida, P.O. Box 116450, Gainesville, FL 32611, USA
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7
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Theoretical studies and rate constants calculation for the reactions of acetone with fluorine and bromine atoms. Theor Chem Acc 2010. [DOI: 10.1007/s00214-010-0848-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Hai-Tao Y, Yu-Juan C, Hong-Gang F, Ze-Sheng L, Jia-Zhong S. Ab initio Mechanism Study on the Reaction of Chlorine Atom with Formic Acid. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.20030210307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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9
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Romanias MN, Stefanopoulos VG, Papanastasiou DK, Papadimitriou VC, Papagiannakopoulos P. Temperature-dependent rate coefficients and mechanism for the gas-phase reaction of chlorine atoms with acetone. INT J CHEM KINET 2010. [DOI: 10.1002/kin.20517] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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10
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Park BS, Jeong SJ. Effect of an Extra Chloro Substituent on Photochemistry of o-Alkylphenacyl Chloride. B KOREAN CHEM SOC 2009. [DOI: 10.5012/bkcs.2009.30.12.3053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Zhang H, Zhang GL, Liu JY, Sun M, Liu B, Li ZS. Theoretical studies on the reactions of acetone with chlorine atom and methyl radical. Theor Chem Acc 2008. [DOI: 10.1007/s00214-007-0402-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Ji YM, Zhao XL, Liu JY, Wang Y, Li ZS. Theoretical dynamic studies on the reactions of CH3C(O)CH3−nCln (n = 0–3) with the chlorine atom. J Comput Chem 2008; 29:809-19. [PMID: 17894372 DOI: 10.1002/jcc.20825] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The theoretical investigations were performed on the reaction mechanisms for the title reactions CH(3)C(O)CH(3) + Cl --> products (R1), CH(3)C(O)CH(2)Cl + Cl --> products (R2), CH(3)C(O)CHCl(2) + Cl --> products (R3), and CH(3)C(O)CCl(3) + Cl --> products (R4) by ab initio direct dynamics approach. Two different reaction channels have been found: abstract of the H atom from methyl (--CH(3)) group or chloromethyl (--CH(3-n)Cl(n)) group of chloroacetone and addition of a Cl atom to the carbon atom of the carbonyl group of chloroacetone followed by methyl or chloromethyl eliminations. Because of the higher potential energy barrier, the contribution of addition-elimination reaction pathway to the total rate constants is very small and thus this pathway is insignificant in atmospheric conditions. The rate constants for the H-abstraction reaction channels are evaluated by using canonical variational transition state theory incorporating with the small-curvature tunneling correction. Theoretical overall rate constants are in good agreement with the available experimental values and decrease in the order of k(1) > k(2) > k(3) > k(4). The results indicate that for halogenated acetones the substitution of halogen atom (F or Cl) leads to the decrease in the C--H bond reactivity and more decrease of reactivity is caused by F-substitution.
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Affiliation(s)
- Yue-Meng Ji
- Institute of Theoretical Chemistry, State Key Laboratory of Theoretical and Computational Chemistry, Jilin University, Changchun, Jilin, 130023, People's Republic of China
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Zhao Z, Huskey DT, Nicovich JM, Wine PH. Temperature-dependent kinetics study of the gas-phase reactions of atomic chlorine with acetone, 2-butanone, and 3-pentanone. INT J CHEM KINET 2008. [DOI: 10.1002/kin.20321] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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14
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Kaiser EW, Wallington TJ. Rate Constants for the Reaction of Cl with a Series of C4 to C6 Ketones Using the Relative Rate Method. J Phys Chem A 2007; 111:10667-70. [PMID: 17914780 DOI: 10.1021/jp075088i] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Rate constants for the reaction of Cl with eight ketones were measured relative to the rate constant of propane in approximately 900 Torr of N2 at ambient temperature. Experiments were carried out in a Pyrex reactor with GC analysis of the consumption of the ketones and propane. Chlorine atoms were generated by irradiation of Cl2 in the initial mixture using a black-light-blue fluorescent lamp. The rate constants determined in these experiments (10-11 cm3 molecule-1 s-1) are: butanone (3.8 +/- 0.3); 2-pentanone (11.6 +/- 1.0); 3-pentanone (8.3 +/- 0.7); 2-hexanone (19.4 +/- 1.9); 3-hexanone (15.3 +/- 1.1); cyclopentanone (10.4 +/- 0.9); 3-methyl-2-butanone (6.2 +/- 0.5); and 4-methyl-2-pentanone (12.8 +/- 1.0). The results for 2-pentanone, 3-pentanone, 2-hexanone, 3-hexanone, 3-methyl-2-butanone, and 4-methyl-2-pentanone are significantly higher (by a factor of 3 for 2-hexanone) than reported in two previous absolute rate studies. The likely explanation for this discrepancy is discussed.
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Affiliation(s)
- E W Kaiser
- Department of Natural Sciences, 4901 Evergreen Road, University of Michigan - Dearborn, Dearborn, Michigan 48128, USA.
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Takahashi K, Iwasaki E, Matsumi Y, Wallington TJ. Pulsed Laser Photolysis Vacuum UV Laser-Induced Fluorescence Kinetic Study of the Gas-Phase Reactions of Cl( 2P 3/2) Atoms with C 3−C 6 Ketones. J Phys Chem A 2007. [DOI: 10.1021/jp074638+] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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16
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Krisch MJ, Bell MJ, Fitzpatrick BL, McCunn LR, Lau KC, Liu Y, Butler LJ. Photodissociation Pathways of 1,1-Dichloroacetone. J Phys Chem A 2007; 111:5968-80. [PMID: 17571861 DOI: 10.1021/jp068208f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We present a comprehensive investigation of the dissociation dynamics following photoexcitation of 1,1-dichloroacetone (CH(3)COCHCl(2)) at 193 nm. Two major dissociation channels are observed: cleavage of a C-Cl bond to form CH(3)C(O)CHCl + Cl and elimination of HCl. The branching between these reaction channels is roughly 9:1. The recoil kinetic energy distributions for both C-Cl fission and HCl elimination are bimodal. The former suggests that some of the radicals are formed in an excited electronic state. A portion of the CH(3)C(O)CHCl photoproducts undergo secondary dissociation to give CH(3) + C(O)CHCl. Photoelimination of Cl(2) is not a significant product channel. A primary C-C bond fission channel to give CH(3)CO + CHCl(2) may be present, but this signal may also be due to a secondary dissociation. Data from photofragment translational spectroscopy with electron impact and photoionization detection, velocity map ion imaging, and UV-visible absorption spectroscopy are presented, along with G3//B3LYP calculations of the bond dissociation energetics.
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Affiliation(s)
- Maria J Krisch
- The James Franck Institute and Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, USA
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17
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Takahashi K, Iwasaki E, Matsumi Y, Wallington TJ. Pulsed Laser Photolysis Vacuum UV Laser-Induced Fluorescence Kinetic Study of the Gas-Phase Reactions of Cl(2P3/2) Atoms with C3−C6 Ketones. J Phys Chem A 2007; 111:1271-6. [PMID: 17266289 DOI: 10.1021/jp066410c] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The gas-phase reactions of Cl atoms with acetone, butanone, 2-pentanone, 3-pentanone, 2-hexanone, 3-hexanone, and cyclopentanone at 295 +/- 2 K were studied using pulsed laser photolysis vacuum UV laser-induced fluorescence (PLP-LIF) techniques. Cl(2P(3/2)) atoms were produced by photolysis of Cl2 at 351 nm and monitored by LIF spectroscopy at 134.72 nm (3p(5) 2P(3/2)-3p(4)4s 2P(3/2) transition). Rate coefficients for reactions of Cl atoms with acetone, butanone, 2-pentanone, 3-pentanone, 2-hexanone, 3-hexanone, and cyclopentanone are (2.30 +/- 0.12) x 10(-12), (4.08 +/- 0.21) x 10(-11), (1.23 +/- 0.13) x 10(-10), (8.87 +/- 0.92) x 10(-11), (2.08 +/- 0.32) x 10(-10), (1.43 +/- 0.19) x 10(-10) and (1.16 +/- 0.12) x 10(-10) cm3 molecule(-1) s(-1), respectively. The results for acetone and butanone are consistent with previous studies. The results for 2-pentanone, 3-pentanone, 2-hexanone, and 3-hexanone are approximately a factor of 2-3 higher than those from previous absolute rate studies. Likely explanations for these discrepancies are discussed. Tropospheric lifetimes of ketones with respect to reaction with Cl atoms are estimated and discussed.
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Affiliation(s)
- Kenshi Takahashi
- Solar-Terrestrial Environment Laboratory and Graduate School of Science, Nagoya University, 3-13 Hohohara, Toyokawa, Aichi 442-8507, Japan.
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Taketani F, Matsumi Y, Wallington T, Hurley M. Kinetics of the gas phase reactions of chlorine atoms with a series of ketones. Chem Phys Lett 2006. [DOI: 10.1016/j.cplett.2006.09.101] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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19
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Dalmasso PR, Taccone RA, Nieto JD, Teruel MA, Lane SI. Rate constants for the reactions of chlorine atoms with hydrochloroethers at 298 k and atmospheric pressure. INT J CHEM KINET 2005. [DOI: 10.1002/kin.20091] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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20
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Cuevas CA, Notario A, Martínez E, Albaladejo J. A kinetic study of the reaction of Cl with a series of linear and ramified ketones as a function of temperature. Phys Chem Chem Phys 2004. [DOI: 10.1039/b313587j] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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21
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Mellouki A, Le Bras G, Sidebottom H. Kinetics and Mechanisms of the Oxidation of Oxygenated Organic Compounds in the Gas Phase. Chem Rev 2003; 103:5077-96. [PMID: 14664644 DOI: 10.1021/cr020526x] [Citation(s) in RCA: 200] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- A Mellouki
- Laboratoire de Combustion et Systèmes Réactifs, Centre National de Recherche Scientifique, 1C Avenue de la recherche scientifique, 45071 Orléans Cedex 02, France
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Knipping EM, Dabdub D. Impact of chlorine emissions from sea-salt aerosol on coastal urban ozone. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2003; 37:275-284. [PMID: 12564898 DOI: 10.1021/es025793z] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The ability of photochemical models to predict observed coastal chlorine levels and their corresponding effect on ozone formation is explored. Current sea-spray generation functions, a comprehensive gas-phase chlorine chemistry mechanism, and several heterogeneous/multiphase chemical reactions considered key processes leading to reactive chlorine formation are added to an airshed model of the South Coast Air Basin of California. Modeling results reproduce regional sea-salt particle concentrations. The heterogeneous/multiphase chemical reactions do not affect the rate of hydrochloric acid displacement, nor do they enhance aerosol nitrate formation. Chlorine levels in the model are predicted to be an order of magnitude lower than previously observed values at other coastal regions under similar conditions, albeit in much better agreement than previous studies. The results suggest that the inclusion of sea-salt-derived chlorine chemistry might increase morning ozone predictions by as much as 12 ppb in coastal regions and by 4 ppb in the peak domain ozone in the afternoon. The inclusion of anthropogenic sources of chlorine is recommended for future studies, as such sources might elevate ozone predictions even further via direct emission into polluted regions.
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Affiliation(s)
- Eladio M Knipping
- Department of Mechanical and Aerospace Engineering, University of California, Irvine, California 92697-3975, USA
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23
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Gilles MK, Burkholder JB, Gierczak T, Marshall P, Ravishankara AR. Rate Coefficient and Product Branching Measurements for the Reaction OH + Bromopropane from 230 to 360 K. J Phys Chem A 2002. [DOI: 10.1021/jp014736+] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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24
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Orlando JJ, Tyndall GS, Vereecken L, Peeters J. The Atmospheric Chemistry of the Acetonoxy Radical. J Phys Chem A 2000. [DOI: 10.1021/jp0026991] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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