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Mairean CP, Roman C, Arsene C, Bejan IG, Olariu RI. Gas-Phase Kinetics of a Series of cis-3-Hexenyl Esters with OH Radicals under Simulated Atmospheric Conditions. J Phys Chem A 2024; 128:6274-6285. [PMID: 39031125 PMCID: PMC11299184 DOI: 10.1021/acs.jpca.4c03069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 06/26/2024] [Accepted: 07/09/2024] [Indexed: 07/22/2024]
Abstract
The present relative kinetic study reports on the experimentally determined gas-phase reaction rate coefficients of OH radicals with a series of seven cis-3-hexenyl esters. The experiments were carried out in the environmental simulation chamber made of quartz from the "Alexandru Ioan Cuza" University of Iasi (ESC-Q-UAIC), Romania, at a temperature of (298 ± 2) K and a total air pressure of (1000 ± 10) mbar. In situ long-path Fourier transform infrared (FTIR) spectroscopy was used to monitor cis-3-hexenyl formate (Z3HF, (Z)-CH3CH2CH═CH(CH2)2OC(O)H), cis-3-hexenyl acetate (Z3HAc, (Z)-CH3CH2CH═CH(CH2)2OC(O)CH3), cis-3-hexenyl isobutyrate (Z3HiB, (Z)-CH3CH2CH═CH(CH2)2OC(O)CH(CH3)2), cis-3-hexenyl 3-methylbutanoate (Z3H3MeB, (Z)-CH3CH2CH═CH(CH2)2OC(O)CH2CH(CH3)2), cis-3-hexenyl hexanoate (Z3HH, (Z)-CH3CH2CH═CH(CH2)2OC(O)(CH2)4CH3), cis-3-hexenyl cis-3-hexenoate (Z3HZ3H, (Z,Z)-CH3CH2CH═CH(CH2)2OC(O)CH2CH═CHCH2CH3), cis-3-hexenyl benzoate (Z3HBz, (Z)-CH3CH2CH═CH(CH2)2OC(O)C6H5), and the reference compounds. The following reaction rate coefficients (in 10-11 cm3 molecule-1 s-1) were obtained for the OH radical-initiated gas-phase oxidation of cis-3-hexenyl esters: (4.13 ± 0.45) for Z3HF, (4.19 ± 0.38) for Z3HAc, (4.84 ± 0.39) for Z3HiB, (5.39 ± 0.61) for Z3H3MeB, (7.00 ± 0.56) for Z3HH, (10.58 ± 1.40) for Z3HZ3H, and (3.41 ± 0.28) for Z3HBz. The results are discussed in terms of hexenyl ester reactivity and compared with the available literature data and structure-activity relationship (SAR) estimates. The atmospheric implications based on the average lifetimes of the investigated cis-3-hexenyl esters are discussed in the present study. The gas-phase rate coefficients for OH radical reactions are given herein for the first time for cis-3-hexenyl isobutyrate, cis-3-hexenyl 3-methylbutanoate, cis-3-hexenyl hexanoate cis-3-hexenyl cis-3-hexenoate, and cis-3-hexenyl benzoate. The newly determined gas-phase reaction rate coefficients provide new information for existing kinetic databases and contribute to the further development of SAR methodologies useful for predicting the reactivity of oxygenated volatile organic compounds.
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Affiliation(s)
- Ciprian-Paul Mairean
- Faculty
of Chemistry, “Alexandru Ioan Cuza”
University of Iasi, 11 Carol I, Iasi 700506, Romania
| | - Claudiu Roman
- Integrated
Centre of Environmental Science Studies in the North Eastern Region
- CERNESIM, “Alexandru Ioan Cuza”
University of Iasi, 11
Carol I, Iasi 700506, Romania
- Research
Center with Integrated Techniques for Atmospheric Aerosol Investigation
in Romania (RECENT AIR), “Alexandru
Ioan Cuza” University of Iasi, 11 Carol I, Iasi 700506, Romania
| | - Cecilia Arsene
- Faculty
of Chemistry, “Alexandru Ioan Cuza”
University of Iasi, 11 Carol I, Iasi 700506, Romania
- Integrated
Centre of Environmental Science Studies in the North Eastern Region
- CERNESIM, “Alexandru Ioan Cuza”
University of Iasi, 11
Carol I, Iasi 700506, Romania
- Research
Center with Integrated Techniques for Atmospheric Aerosol Investigation
in Romania (RECENT AIR), “Alexandru
Ioan Cuza” University of Iasi, 11 Carol I, Iasi 700506, Romania
| | - Iustinian-Gabriel Bejan
- Faculty
of Chemistry, “Alexandru Ioan Cuza”
University of Iasi, 11 Carol I, Iasi 700506, Romania
- Integrated
Centre of Environmental Science Studies in the North Eastern Region
- CERNESIM, “Alexandru Ioan Cuza”
University of Iasi, 11
Carol I, Iasi 700506, Romania
| | - Romeo-Iulian Olariu
- Faculty
of Chemistry, “Alexandru Ioan Cuza”
University of Iasi, 11 Carol I, Iasi 700506, Romania
- Integrated
Centre of Environmental Science Studies in the North Eastern Region
- CERNESIM, “Alexandru Ioan Cuza”
University of Iasi, 11
Carol I, Iasi 700506, Romania
- Research
Center with Integrated Techniques for Atmospheric Aerosol Investigation
in Romania (RECENT AIR), “Alexandru
Ioan Cuza” University of Iasi, 11 Carol I, Iasi 700506, Romania
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Bates KH, Cope JD, Nguyen TB. Gas-Phase Oxidation Rates and Products of 1,2-Dihydroxy Isoprene. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:14294-14304. [PMID: 34618435 DOI: 10.1021/acs.est.1c04177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
1,2-Dihydroxy isoprene (1,2-DHI), a product of isoprene oxidation from multiple chemical pathways, is produced in the atmosphere in large quantities; however, its chemical fate has not been comprehensively studied. Here, we perform chamber experiments to investigate its gas-phase reactions. We find that the reactions of 1,2-DHI with OH radicals and ozone are rapid (kOH = 8.0 (±1.3) × 10-11 cm3 molecule-1 s-1; kO3 = 7.2 (±1.1) × 10-18 cm3 molecule-1 s-1). Reaction with OH, which dominates 1,2-DHI loss, leads primarily to fragmentation and radical recycling; major products under both high- and low-NO conditions include hydroxyacetone, glycolaldehyde, and 2,3-dihydroxy-2-methyl-propanal (DHMP). Radical-terminating hydroperoxide formation from the peroxy radical (RO2) reaction with HO2 and organonitrate formation from RO2 + NO are not observed in the gas phase, possibly due to low volatility; constraints for their branching ratios are instead derived by mass balance. We also measure secondary organic aerosol mass yields from 1,2-DHI (0-23%) and show that oxidation in the presence of aqueous particles leads to formic and acetic acid production. Finally, we incorporate results into GEOS-Chem, a global chemical transport model, to compute the global production (25.3 Tg a-1) and gas-phase loss (20.2 Tg a-1) of 1,2-DHI and show that its oxidation provides non-negligible contributions to the atmospheric budgets of hydroxyacetone, glycolaldehyde, hydroxymethyl hydroperoxide, formic acid, and DHMP.
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Affiliation(s)
- Kelvin H Bates
- Department of Environmental Toxicology, University of California Davis, Davis, California 95616, United States
- Center for the Environment, Harvard University, Cambridge, Massachusetts 02138, United States
| | - James D Cope
- Department of Environmental Toxicology, University of California Davis, Davis, California 95616, United States
| | - Tran B Nguyen
- Department of Environmental Toxicology, University of California Davis, Davis, California 95616, United States
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Diedhiou M, Mayer PM. Fate of Protonated Formates in the Gas Phase. J Phys Chem A 2021; 125:5096-5102. [PMID: 34086463 DOI: 10.1021/acs.jpca.1c03814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Formates are a class of organic molecules emitted into the atmosphere from fuel additives and industrial solvents. Formate-derived esters can undergo a vast range of chemical reactions in the atmosphere, most of which are initiated by oxidation by hydroxyl radicals. One potential reaction upon their interaction with atmospheric water is proton transfer to form protonated formates. The goal of the present work is to explore the dissociation of these protonated species and thus their possible atmospheric fate. Tandem mass spectrometry was employed to study the unimolecular dissociation of the protonated forms of methyl- (1), ethyl- (2), isopropyl- (3), tert-butyl- (4), and phenylformate (5). 1 and 2 lose CO as a common fragmentation product, forming a protonated alcohol, and 2 also generates neutral ethanol (forming protonated CO). 3 and 4 readily lose the stable isopropyl and tert-butyl radicals as well as neutral alkenes propene and isobutene. Methanol loss is also observed from both ions. 5 exhibits both phenyl radical loss (similar to 3 and 4) and CO loss (like 1 and 2). Density functional theory was used to explore the observed minimum energy reaction pathways for each ion, and CBS-QB3 single-point energy calculations provided reliable energetics.
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Affiliation(s)
- Malick Diedhiou
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa K1N 6N5, Canada
| | - Paul M Mayer
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa K1N 6N5, Canada
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Ikeda Y, Mandai T, Yonekura K, Shirakawa E. Alkylation of Heteroaryl Chlorides through Homolytic Aromatic Substitution by Alkyl Radicals Derived from Alkyl Formates. CHEM LETT 2021. [DOI: 10.1246/cl.210015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yuko Ikeda
- Department of Applied Chemistry for Environment, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Tomoya Mandai
- Department of Applied Chemistry for Environment, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Kyohei Yonekura
- Department of Applied Chemistry for Environment, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Eiji Shirakawa
- Department of Applied Chemistry for Environment, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
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Kumar A, Rajakumar B. Gas Phase Kinetics and Mechanistic Insights for the Reactions of Cl atoms with Isopropyl Formate and Isobutyl Formate. J Phys Chem A 2019; 123:9978-9994. [DOI: 10.1021/acs.jpca.9b08410] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Avinash Kumar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - B. Rajakumar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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Spada L, Evangelisti L, Li W, Orlacchio R, Caminati W. Carboxylic Acids, Reactivity with Alcohols and Clustering with Esters: A Rotational Study of Formic Acid-Isopropylformate. J Phys Chem A 2019; 123:1785-1789. [PMID: 30730139 DOI: 10.1021/acs.jpca.8b11294] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The rotational spectrum of the 1:1 complex formic acid-isopropylformate (FA-IPF) has been first observed when trying to assign the pulsed jet Fourier transform microwave (FTMW) spectrum of the adduct formic acid-2-propanol, by expanding a binary mixture of HCOOH and 2-propanol in He. The strong FTMW spectrum of isopropylformate, formed by the esterification reaction, was observed instead. However, when HCOOH was in excess in the binary mixture, it was possible to observe and assign the rotational spectrum of FA-IPF. Later on a much intense spectrum of FA-IPF was obtained, when combining FA with IPF. Finally, the spectra of five isotopologues of the most stable isomer of formic acid-isopropylformate have been observed by means of rotational spectroscopy in supersonic expansion. Some of them, HCOOH-(CH3)2CHOOCD and HCOOH-(CH3)2CDOOCH have been synthesized in the MW cavity by using DCOOH or (CH3)2CDOH as precursors in the esterification process. In the observed isomer of the complex, the two subunits are linked to each other by a standard O-H···O and a weak C-H···O hydrogen bond. The dissociation energy has been estimated to be 34.1 kJ·mol-1.
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Affiliation(s)
- Lorenzo Spada
- Dipartimento di Chimica , "G. Ciamician" dell'Università , Via Selmi 2 , I-40126 Bologna , Italy
| | - Luca Evangelisti
- Dipartimento di Chimica , "G. Ciamician" dell'Università , Via Selmi 2 , I-40126 Bologna , Italy
| | - Weixing Li
- Dipartimento di Chimica , "G. Ciamician" dell'Università , Via Selmi 2 , I-40126 Bologna , Italy
| | - Ramona Orlacchio
- Dipartimento di Chimica , "G. Ciamician" dell'Università , Via Selmi 2 , I-40126 Bologna , Italy
| | - Walther Caminati
- Dipartimento di Chimica , "G. Ciamician" dell'Università , Via Selmi 2 , I-40126 Bologna , Italy
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Rivela CB, Tovar CM, Gibilisco R, Teruel MA, Barnes I, Wiesen P, Blanco MB. Product distribution and mechanism of the OH− initiated tropospheric degradation of three CFC replacement candidates: CH3CFCH2, (CF3)2CCH2 and (E/Z)-CF3CFCHF. RSC Adv 2019; 9:5592-5598. [PMID: 35515909 PMCID: PMC9060772 DOI: 10.1039/c8ra09627a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 02/03/2019] [Indexed: 11/21/2022] Open
Abstract
The OH initiated degradation of 2-fluoropropene, 3,3,3-trifluoro-2-(tri-fluoromethyl)propene and (E/Z)-1,2,3,3,3-pentafluoropropene has been investigated using a 1080 L chamber at 298 K and 1000 mbar of air coupled with in situ FTIR spectroscopy.
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Affiliation(s)
- Cynthia B. Rivela
- Instituto de Investigaciones en Fisicoquímica de Córdoba (I.N.F.I.Q.C.)
- CONICET
- Dpto. de Fisicoquímica
- Facultad de Ciencias Químicas
- Universidad Nacional de Córdoba
| | - Carmen M. Tovar
- Physikalische Chemie/FBC
- Bergische Universitaet Wuppertal
- Wuppertal
- Germany
| | - Rodrigo Gibilisco
- Physikalische Chemie/FBC
- Bergische Universitaet Wuppertal
- Wuppertal
- Germany
| | - Mariano A. Teruel
- Instituto de Investigaciones en Fisicoquímica de Córdoba (I.N.F.I.Q.C.)
- CONICET
- Dpto. de Fisicoquímica
- Facultad de Ciencias Químicas
- Universidad Nacional de Córdoba
| | - Ian Barnes
- Physikalische Chemie/FBC
- Bergische Universitaet Wuppertal
- Wuppertal
- Germany
| | - Peter Wiesen
- Physikalische Chemie/FBC
- Bergische Universitaet Wuppertal
- Wuppertal
- Germany
| | - María B. Blanco
- Instituto de Investigaciones en Fisicoquímica de Córdoba (I.N.F.I.Q.C.)
- CONICET
- Dpto. de Fisicoquímica
- Facultad de Ciencias Químicas
- Universidad Nacional de Córdoba
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Vila JA, Argüello GA, Malanca FE. Atmospheric degradation of n -butyl formate in the presence of O 2 and NO 2. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.04.052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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9
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Vereecken L, Aumont B, Barnes I, Bozzelli J, Goldman M, Green W, Madronich S, Mcgillen M, Mellouki A, Orlando J, Picquet-Varrault B, Rickard A, Stockwell W, Wallington T, Carter W. Perspective on Mechanism Development and Structure-Activity Relationships for Gas-Phase Atmospheric Chemistry. INT J CHEM KINET 2018. [DOI: 10.1002/kin.21172] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- L. Vereecken
- Institute for Energy and Climate Research: IEK-8 Troposphere; Forschungszentrum Jülich GmbH; Jülich Germany
| | - B. Aumont
- Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA); UMR 7583 CNRS; Universités Paris-Est Créteil et Paris Diderot; Institut Pierre-Simon Laplace; Créteil Cedex France
| | - I. Barnes
- School of Mathematics and Natural Sciences; Physical & Theoretical Chemistry; University of Wuppertal; Wuppertal Germany
| | - J.W. Bozzelli
- Department of Chemistry and Environmental Science; New Jersey Institute of Technology; Newark NJ 07102
| | - M.J. Goldman
- Department of Chemical Engineering; Massachusetts Institute of Technology; Cambridge MA 02139
| | - W.H. Green
- Department of Chemical Engineering; Massachusetts Institute of Technology; Cambridge MA 02139
| | - S. Madronich
- Atmospheric Chemistry Observations and Modeling Laboratory; National Center for Atmospheric Research; Boulder CO 80307
| | - M.R. Mcgillen
- School of Chemistry; University of Bristol; Cantock's Close; Bristol BS8 1TS UK
| | - A. Mellouki
- Institut de Combustion; Aérothermique, Réactivité et Environnement (ICARE); CNRS/OSUC; 45071 Orléans Cedex 2 France
| | - J.J. Orlando
- Atmospheric Chemistry Observations and Modeling Laboratory; National Center for Atmospheric Research; Boulder CO 80307
| | - B. Picquet-Varrault
- Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA); UMR 7583 CNRS; Universités Paris-Est Créteil et Paris Diderot; Institut Pierre-Simon Laplace; Créteil Cedex France
| | - A.R. Rickard
- Wolfson Atmospheric Chemistry Laboratories; Department of Chemistry; University of York; York YO10 5DD UK
- National Centre for Atmospheric Science; University of York; York YO10 5DD UK
| | - W.R. Stockwell
- Department of Physics; University of Texas at El Paso; El Paso TX 79968 USA
| | - T.J. Wallington
- Research & Advanced Engineering; Ford Motor Company; Dearborn MI 48121-2053
| | - W.P.L. Carter
- College of Engineering; Center for Environmental Research and Technology (CE-CERT); University of California; Riverside CA 92521
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Zhang Y, Liang P, Jiang Z, Cazaunau M, Daële V, Mu Y, Mellouki A. Reactions of OH and Cl with isopropyl formate, isobutyl formate, n-propyl isobutyrate and isopropyl isobutyrate. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.04.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Blanco MB, Bejan I, Barnes I, Wiesen P, Teruel MA. Products and mechanism of the reactions of OH radicals and Cl atoms with methyl methacrylate (CH2═C(CH3)C(O)OCH3) in the presence of NOx. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014; 48:1692-1699. [PMID: 24400975 DOI: 10.1021/es404771d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The OH radical and Cl atom initiated photodegradation of methyl methacrylate has been investigated in a 1080 L quartz-glass environmental chamber at 298 ± 2 K and atmospheric pressure of synthetic air using in situ FTIR spectroscopy to monitor the reactants and products. The major products observed in the OH reaction were methyl pyruvate (92 ± 16%) together with formaldehyde (87 ± 12%) as a coproduct from the C1-C2 bond cleavage channel of the intermediate 1,2-hydroxyalkoxy radical, formed by the addition of OH to the terminal carbon of the double bond which is designated C1. For the Cl atom reaction, the products identified were chloroacetone (41 ± 6%) together with its coproduct formaldehyde (35 ± 5%) and methyl pyruvate (24 ± 4%) together with its coproduct formylchloride (25 ± 4%). The results show that the fate of the intermediate 1,2-chloroalkoxy radical involves not only cleavage of the C1-C2 bond but also quite substantial cleavage of the C2-C3 bond. The present results are compared with previous studies of acrylates, showing different branching ratios for the OH and Cl addition reactions in the presence of NOx. Atmospheric implications are discussed.
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Affiliation(s)
- María B Blanco
- INFIQC (CONICET- Facultad de Ciencias Químicas, Universidad Nacional de Córdoba) , Dpto. de Fisicoquímica, Ciudad Universitaria, 5000 Córdoba, Argentina
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Vereecken L, Peeters J. A theoretical study of the OH-initiated gas-phase oxidation mechanism of β-pinene (C10H16): first generation products. Phys Chem Chem Phys 2012; 14:3802-15. [DOI: 10.1039/c2cp23711c] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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13
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Vereecken L, Francisco JS. Theoretical studies of atmospheric reaction mechanisms in the troposphere. Chem Soc Rev 2012; 41:6259-93. [DOI: 10.1039/c2cs35070j] [Citation(s) in RCA: 311] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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