1
|
Fan H, Ma J, Zhu L, Liu B, Liu F, Shan X, Wang Z, Wang L. Unusual Diradical Intermediates in Ozonolysis of Alkenes: A Combined Theoretical and Synchrotron Radiation Photoionization Mass Spectrometric Study on Ozonolysis of Alkyl Vinyl Ethers. J Phys Chem A 2022; 126:8021-8027. [DOI: 10.1021/acs.jpca.2c04382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hanlin Fan
- School of Chemistry & Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jun Ma
- School of Chemistry & Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Long Zhu
- National Synchrotron Radiation Laboratory, University of Sciences and Technology of China, Hefei, 230029, China
| | - Bingzhi Liu
- National Synchrotron Radiation Laboratory, University of Sciences and Technology of China, Hefei, 230029, China
| | - Fuyi Liu
- National Synchrotron Radiation Laboratory, University of Sciences and Technology of China, Hefei, 230029, China
| | - Xiaobin Shan
- National Synchrotron Radiation Laboratory, University of Sciences and Technology of China, Hefei, 230029, China
| | - Zhandong Wang
- National Synchrotron Radiation Laboratory, University of Sciences and Technology of China, Hefei, 230029, China
| | - Liming Wang
- School of Chemistry & Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| |
Collapse
|
2
|
Lowe B, Cardona AL, Salas J, Bodi A, Burgos Paci MA, Mayer PM. Probing the pyrolysis of methyl formate in the dilute gas phase by synchrotron radiation and theory. JOURNAL OF MASS SPECTROMETRY : JMS 2022; 57:e4868. [PMID: 35698788 DOI: 10.1002/jms.4868] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/22/2022] [Accepted: 05/26/2022] [Indexed: 06/15/2023]
Abstract
The thermal dissociation of the atmospheric constituent methyl formate was probed by coupling pyrolysis with imaging photoelectron photoion coincidence spectroscopy (iPEPICO) using synchrotron VUV radiation at the Swiss Light Source (SLS). iPEPICO allows threshold photoelectron spectra to be obtained for pyrolysis products, distinguishing isomers and separating ionic and neutral dissociation pathways. In this work, the pyrolysis products of dilute methyl formate, CH3 OC(O)H, were elucidated to be CH3 OH + CO, 2 CH2 O and CH4 + CO2 as in part distinct from the dissociation of the radical cation (CH3 OH+• + CO and CH2 OH+ + HCO). Density functional theory, CCSD(T), and CBS-QB3 calculations were used to describe the experimentally observed reaction mechanisms, and the thermal decomposition kinetics and the competition between the reaction channels are addressed in a statistical model. One result of the theoretical model is that CH2 O formation was predicted to come directly from methyl formate at temperatures below 1200 K, while above 1800 K, it is formed primarily from the thermal decomposition of methanol.
Collapse
Affiliation(s)
- Bethany Lowe
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, Canada
| | - Alejandro L Cardona
- INFIQC-CONICET, Departamento Fisicoquímica, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Juana Salas
- INFIQC-CONICET, Departamento Fisicoquímica, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Andras Bodi
- Laboratory for Synchrotron Radiation and Femtochemistry, Paul Scherrer Institute, Villigen, Switzerland
| | - Maxi A Burgos Paci
- INFIQC-CONICET, Departamento Fisicoquímica, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Paul M Mayer
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, Canada
| |
Collapse
|
3
|
Baruah SD, Deka RC, Gour NK, Paul S. Atmospheric insight into the reaction mechanism and kinetics of isopropenyl methyl ether (i-PME) initiated by OH radicals and subsequent oxidation of product radicals. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:45646-45662. [PMID: 33876365 DOI: 10.1007/s11356-021-13928-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 04/09/2021] [Indexed: 06/12/2023]
Abstract
Studies on primary gas-phase reactions of emitted saturated and unsaturated ethers with oxidants and subsequent secondary reactions of product radicals with O2 in the presence of NO are important in their atmospheric chemical processes. To accomplish these findings, we have examined the chemistry of OH-initiated oxidation of isopropenyl methyl ether (i-PME) CH3C(CH2)OCH3 by electronic structure ca using density functional theory. Our energetic calculations show that OH additions to carbon-carbon double bonds of i-PME are more favorable reaction pathways than H-abstraction reactions from the various CH sites of the titled molecule. The rate constant values which are obtained from the transition state theory also signify that OH-addition reactions have faster reaction rates than H-abstraction reactions. Our calculated total rate constant of the reaction is found 9.90 × 10-11 cm3 molecule-1 s-1. The percentage branching ratio calculations imply that OH-addition reactions have 98.09% contribution in the total rate constant. The atmospheric lifetime of i-PME is found to be 2.8 h. Further, we have identified 2-hydroxy-2-methoxypropanol, methyl acetate, methy-1,2-hydroxyacetate and 1-hydroxypropane-2-one, 1,2-dihydroxypropan-2-yl format, 2-hydroxyacetic acid, acetic acid, and formaldehyde from the secondary oxidation of product radicals.
Collapse
Affiliation(s)
- Satyajit Dey Baruah
- Department of Chemical Sciences, Tezpur University, Tezpur, Assam, 784028, India
| | - Ramesh Chandra Deka
- Department of Chemical Sciences, Tezpur University, Tezpur, Assam, 784028, India
| | - Nand Kishor Gour
- Department of Chemical Sciences, Tezpur University, Tezpur, Assam, 784028, India.
| | - Subrata Paul
- Department of Chemistry, Assam University, Silchar, Assam, 788011, India.
| |
Collapse
|
4
|
Lei X, Wang W, Gao J, Wang S, Wang W. Atmospheric Chemistry of Enols: The Formation Mechanisms of Formic and Peroxyformic Acids in Ozonolysis of Vinyl Alcohol. J Phys Chem A 2020; 124:4271-4279. [PMID: 32369366 DOI: 10.1021/acs.jpca.0c01480] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Vinyl alcohol (VA), for a long time, is thought to be a missing source of formic acid (FA) in the atmospheric models. However, a recent study has shown that FA is just a byproduct in the OH-initiated oxidation of VA, which stimulates investigation on the other sinks of VA in the atmosphere. In this study, the detailed ozonolysis mechanism of VA was investigated theoretically for the first time. The results show that two primary ozonides (syn- and anti-POZ) can be formed in the ozonolysis of VA and that FA coupled with the simplest Criegee intermediate (CH2OO) can be produced as the main nascent products. Thus, the ozonolysis of VA is predicted to be a more efficient process to produce FA in the atmosphere compared with its OH-initiated oxidation. Moreover, it is found that the syn-POZ can directly decompose to peroxyformic acid plus formaldehyde, breaking the known "Criegee mechanism" to form carbonyl oxide with carbonyl compound. This special mechanism by providing a new source of peroxy acids in the atmosphere enriches the atmospheric chemistry of enols. The atmospheric lifetime of VA by ozonolysis is predicted to be 30 h, comparable with its prevalent reaction with the OH radical. Therefore, the obtained theoretical results can be usefully incorporated into a future modeling study of enols.
Collapse
Affiliation(s)
- Xiaoyang Lei
- Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, China
| | - Weina Wang
- Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, China
| | - Jiemiao Gao
- Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, China
| | - Sainan Wang
- State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, Guangdong, China
| | - Wenliang Wang
- Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, China
| |
Collapse
|
5
|
Han D, Cao H, Zhang F, He M. Quantum chemical study on ·Cl-initiated degradation of ethyl vinyl ether in atmosphere. Mol Phys 2019. [DOI: 10.1080/00268976.2019.1676475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Dandan Han
- School of Chemistry and Chemical Engineering, Heze University, Heze, People’s Republic of China
| | - Haijie Cao
- Institute of Materials for Energy and Environment, Qingdao University, Qingdao, People’s Republic of China
| | - Fengrong Zhang
- School of Chemistry and Chemical Engineering, Heze University, Heze, People’s Republic of China
| | - Maoxia He
- Environment Research Institute, Shandong University, Qingdao, People’s Republic of China
| |
Collapse
|
6
|
Paul S, Gour NK, Deka RC. Oxidation pathways, kinetics and branching ratios of chloromethyl ethyl ether (CMEE) initiated by OH radicals and the fate of its product radical: an insight from a computational study. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2019; 21:1519-1531. [PMID: 31274139 DOI: 10.1039/c9em00104b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The OH-initiated oxidation reactions of chloromethyl ethyl ether (CH2ClOCH2CH3) have been presented by using quantum calculation methods. The Minnesota functional (M06-2X) of the density functional theory method along with a polarization and diffuse 6-311++G(d,p) basis set is chosen for optimization and frequency calculations for H-abstractions from CH2ClOCH2CH3 molecules by OH radicals. Furthermore, the CCSD(T) method along with the same basis set is used for energy refinement of all optimized structures to obtain more accurate energies of the species. Our thermo-chemical calculation results show that the C˙HClOCH2CH3 product radical is more stable, corresponding to hydrogen atom abstraction from the -CH2Cl site, than others while the energy profile results indicate that the H-atom abstracted from the -OCH2 site follows the minimum energy path compared to other channels. The rate constants are computed using canonical transition state theory (CTST) within the temperature range of 250-450 K at 1 atm. The overall rate constant (at 298 K) for the abstraction reactions is found to be consistent with the earlier reported rate constant. The percentage branching ratios of different abstraction channels and the lifetime of chloromethyl ethyl ether are also given herein. We further investigated the unimolecular decomposition pathways of the CH2ClOCH(O˙)CH3 radical and found that unimolecular C-C bond scission is the kinetically and thermodynamically more feasible pathway compared to other unimolecular decomposition reactions.
Collapse
Affiliation(s)
- Subrata Paul
- Department of Chemical Sciences, Tezpur University Tezpur, Assam - 784028, India.
| | | | | |
Collapse
|
7
|
Zhang P, Chen T, Liu J, Liu C, Ma J, Ma Q, Chu B, He H. Impacts of SO 2, Relative Humidity, and Seed Acidity on Secondary Organic Aerosol Formation in the Ozonolysis of Butyl Vinyl Ether. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:8845-8853. [PMID: 31298843 DOI: 10.1021/acs.est.9b02702] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Alkyl vinyl ethers are widely used as fuel additives. Despite this, their atmospheric chemistry and secondary organic aerosol (SOA) formation potentials are still not well-known under complex pollution conditions. In this work, we examined the impact of SO2, relative humidity (RH), and particle acidity on the formation and oxidation state (OSc) of SOA from butyl vinyl ether (BVE) ozonolysis. Increasing SO2 concentration produced a notable promotion of SOA formation and OSc due to the significant increase in H2SO4 particles and formation of more highly oxidized components. Increased RH in the presence of SO2 appeared to promote, suppress, and dominate the formation and OSc of SOA in the dry range (1-10%), low RH range (10-42%), and moderate RH range (42-64%), respectively. This highlights the importance of competition between H2O and SO2 in reacting with the stabilized Criegee intermediate in BVE ozonolysis at ambient RH. Increased particle acidity mainly contributed to the change in chemical composition of BVE-dominated SOA but not to SOA formation. The results presented here extend previous analysis of BVE-derived SOA and further aid our understanding of SOA formation potential of BVE ozonolysis under highly complex pollution conditions.
Collapse
Affiliation(s)
- Peng Zhang
- State Key Joint Laboratory of Environment Simulation and Pollution Control , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Tianzeng Chen
- State Key Joint Laboratory of Environment Simulation and Pollution Control , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Jun Liu
- State Key Joint Laboratory of Environment Simulation and Pollution Control , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Changgeng Liu
- State Key Joint Laboratory of Environment Simulation and Pollution Control , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
| | - Jinzhu Ma
- State Key Joint Laboratory of Environment Simulation and Pollution Control , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
- Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment , Chinese Academy of Sciences , Xiamen 361021 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Qingxin Ma
- State Key Joint Laboratory of Environment Simulation and Pollution Control , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
- Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment , Chinese Academy of Sciences , Xiamen 361021 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Biwu Chu
- State Key Joint Laboratory of Environment Simulation and Pollution Control , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
- Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment , Chinese Academy of Sciences , Xiamen 361021 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Hong He
- State Key Joint Laboratory of Environment Simulation and Pollution Control , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
- Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment , Chinese Academy of Sciences , Xiamen 361021 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| |
Collapse
|
8
|
Cao H, Li X, He M, Zhao X. Computational study on the mechanism and kinetics of NO3-initiated atmosphere oxidation of vinyl acetate. COMPUT THEOR CHEM 2018. [DOI: 10.1016/j.comptc.2018.09.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
9
|
Kawade MN, Srinivas D, Upadhyaya HP. Gas Phase OH Radical Reaction with 2‐Chloroethyl Vinyl Ether in the 256–333 K Temperature Range: A Combined LP‐LIF and Computational Study. ChemistrySelect 2018. [DOI: 10.1002/slct.201800885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Monali N. Kawade
- Radiation & Photochemistry DivisionBhabha Atomic Research Centre, HBNI, Trombay Mumbai – 400 085 India
| | - Doddipatla Srinivas
- Radiation & Photochemistry DivisionBhabha Atomic Research Centre, HBNI, Trombay Mumbai – 400 085 India
| | - Hari P. Upadhyaya
- Radiation & Photochemistry DivisionBhabha Atomic Research Centre, HBNI, Trombay Mumbai – 400 085 India
| |
Collapse
|
10
|
Srinivasulu G, Bunkan AJC, Amedro D, Crowley JN. Absolute and relative-rate measurement of the rate coefficient for reaction of perfluoro ethyl vinyl ether (C 2F 5OCF[double bond, length as m-dash]CF 2) with OH. Phys Chem Chem Phys 2018; 20:3761-3767. [PMID: 29349468 DOI: 10.1039/c7cp08056e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The rate coefficient (k1) for the reaction of OH radicals with perfluoro ethyl vinyl ether (PEVE, C2F5OCF[double bond, length as m-dash]CF2) has been measured as a function of temperature (T = 207-300 K) using the technique of pulsed laser photolysis with detection of OH by laser-induced fluorescence (PLP-LIF) at pressures of 50 or 100 Torr N2 bath gas. In addition, the rate coefficient was measured at 298 K and in one atmosphere of air by the relative-rate technique with loss of PEVE and reference reactant monitored in situ by IR absorption spectroscopy. The rate coefficient has a negative temperature dependence which can be parameterized as: k1(T) = 6.0 × 10-13 exp[(480 ± 38/T)] cm3 molecule-1 s-1 and a room temperature value of k1 (298 K) = (3.0 ± 0.3) × 10-12 cm3 molecule-1 s-1. Highly accurate rate coefficients from the PLP-LIF experiments were achieved by optical on-line measurements of PEVE and by performing the measurements at two different apparatuses. The large rate coefficient and the temperature dependence indicate that the reaction proceeds via OH addition to the C[double bond, length as m-dash]C double bond, the high pressure limit already being reached at 50 Torr N2. Based on the rate coefficient and average OH levels, the atmospheric lifetime of PEVE was estimated to be a few days.
Collapse
Affiliation(s)
- G Srinivasulu
- Division of Atmospheric Chemistry, Max-Planck-Institut für Chemie, 55128 Mainz, Germany.
| | | | | | | |
Collapse
|
11
|
Antiñolo M, Ocaña AJ, Aranguren JP, Lane SI, Albaladejo J, Jiménez E. Atmospheric degradation of 2-chloroethyl vinyl ether, allyl ether and allyl ethyl ether: Kinetics with OH radicals and UV photochemistry. CHEMOSPHERE 2017; 181:232-240. [PMID: 28441613 DOI: 10.1016/j.chemosphere.2017.04.053] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 04/11/2017] [Accepted: 04/12/2017] [Indexed: 06/07/2023]
Abstract
Unsaturated ethers are oxygenated volatile organic compounds (OVOCs) emitted by anthropogenic sources. Potential removal processes in the troposphere are initiated by hydroxyl (OH) radicals and photochemistry. In this work, we report for the first time the rate coefficients of the gas-phase reaction with OH radicals (kOH) of 2-chloroethyl vinyl ether (2ClEVE), allyl ether (AE), and allyl ethyl ether (AEE) as a function of temperature in the 263-358 K range, measured by the pulsed laser photolysis-laser induced fluorescence technique. No pressure dependence of kOH was observed in the 50-500 Torr range in He as bath gas, while a slightly negative T-dependence was observed. The temperature dependent expressions for the rate coefficients determined in this work are: The estimated atmospheric lifetimes (τOH) assuming kOH at 288 K were 3, 2, and 4 h for 2ClEVE, AE and AEE, respectively. The kinetic results are discussed in terms of the chemical structure of the unsaturated ethers by comparison with similar compounds. We also report ultraviolet (UV) and infrared (IR) absorption cross sections (σλ and σ(ν˜), respectively). We estimate the photolysis rate coefficients in the solar UV actinic region to be less than 10-7 s-1, implying that these compounds are not removed from the atmosphere by this process. In addition, from σ(ν˜) and τOH, the global warming potential of each unsaturated ether was calculated to be almost zero. A discussion on the atmospheric implications of the titled compounds is presented.
Collapse
Affiliation(s)
- M Antiñolo
- Departamento de Química Física, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Avda. Camilo José Cela, 1B, Ciudad Real, 13071, Spain; Instituto de Investigación en Combustión y Contaminación Atmosférica, Universidad de Castilla-La Mancha, Camino de Moledores s/n, Ciudad Real, 13071, Spain
| | - A J Ocaña
- Departamento de Química Física, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Avda. Camilo José Cela, 1B, Ciudad Real, 13071, Spain
| | - J P Aranguren
- Instituto de Investigaciones en Fisicoquímica de Córdoba, Departamento de Fisicoquímica, Facultad de Ciencias Químicas, Centro Láser de Ciencias Moleculares, Universidad Nacional de Córdoba, Ciudad Universitaria, Pabellón Argentina, Ala 1, Córdoba, 5000, Argentina
| | - S I Lane
- Instituto de Investigaciones en Fisicoquímica de Córdoba, Departamento de Fisicoquímica, Facultad de Ciencias Químicas, Centro Láser de Ciencias Moleculares, Universidad Nacional de Córdoba, Ciudad Universitaria, Pabellón Argentina, Ala 1, Córdoba, 5000, Argentina
| | - J Albaladejo
- Departamento de Química Física, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Avda. Camilo José Cela, 1B, Ciudad Real, 13071, Spain; Instituto de Investigación en Combustión y Contaminación Atmosférica, Universidad de Castilla-La Mancha, Camino de Moledores s/n, Ciudad Real, 13071, Spain
| | - E Jiménez
- Departamento de Química Física, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Avda. Camilo José Cela, 1B, Ciudad Real, 13071, Spain; Instituto de Investigación en Combustión y Contaminación Atmosférica, Universidad de Castilla-La Mancha, Camino de Moledores s/n, Ciudad Real, 13071, Spain.
| |
Collapse
|
12
|
Lv C, Du L, Tang S, Tsona NT, Liu S, Zhao H, Wang W. Matrix isolation study of the early intermediates in the ozonolysis of selected vinyl ethers. RSC Adv 2017. [DOI: 10.1039/c7ra01011g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The Criegee mechanism of the ozonolysis reaction of vinyl ethers has been observed by matrix isolation FTIR spectroscopy.
Collapse
Affiliation(s)
- Chen Lv
- Environment Research Institute
- Shandong University
- China
| | - Lin Du
- Environment Research Institute
- Shandong University
- China
| | - Shanshan Tang
- Environment Research Institute
- Shandong University
- China
| | | | - Shijie Liu
- Environment Research Institute
- Shandong University
- China
| | - Hailiang Zhao
- Environment Research Institute
- Shandong University
- China
| | - Wenxing Wang
- Environment Research Institute
- Shandong University
- China
| |
Collapse
|
13
|
Theoretical investigation on the decomposition reaction mechanisms and kinetics of methyl vinyl ether initialized by OH radical. Theor Chem Acc 2016. [DOI: 10.1007/s00214-016-2044-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
14
|
Cao H, Han D, Li M, Li X, Zhang S, Ding Y, He M, Wang W. Theoretical study on the nitrate radical oxidation of methyl vinyl ether. COMPUT THEOR CHEM 2015. [DOI: 10.1016/j.comptc.2015.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
15
|
Mellouki A, Wallington TJ, Chen J. Atmospheric chemistry of oxygenated volatile organic compounds: impacts on air quality and climate. Chem Rev 2015; 115:3984-4014. [PMID: 25828273 DOI: 10.1021/cr500549n] [Citation(s) in RCA: 224] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- A Mellouki
- Environment Research Institute, School of Environmental Science and Engineering, Shandong University, Ji'nan 250100, China.,ICARE/OSUC, CNRS, 45071 Orléans, France.,Systems Analytics and Environmental Sciences Department, Ford Motor Company, Mail Drop RIC-2122, Dearborn, Michigan 48121-2053, United States.,Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Fudan Tyndall Centre, Shanghai 200433, China.,Environment Research Institute, School of Environmental Science and Engineering, Shandong University, Ji'nan 250100, China
| | - T J Wallington
- Environment Research Institute, School of Environmental Science and Engineering, Shandong University, Ji'nan 250100, China.,ICARE/OSUC, CNRS, 45071 Orléans, France.,Systems Analytics and Environmental Sciences Department, Ford Motor Company, Mail Drop RIC-2122, Dearborn, Michigan 48121-2053, United States.,Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Fudan Tyndall Centre, Shanghai 200433, China.,Environment Research Institute, School of Environmental Science and Engineering, Shandong University, Ji'nan 250100, China
| | - J Chen
- Environment Research Institute, School of Environmental Science and Engineering, Shandong University, Ji'nan 250100, China.,ICARE/OSUC, CNRS, 45071 Orléans, France.,Systems Analytics and Environmental Sciences Department, Ford Motor Company, Mail Drop RIC-2122, Dearborn, Michigan 48121-2053, United States.,Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Fudan Tyndall Centre, Shanghai 200433, China.,Environment Research Institute, School of Environmental Science and Engineering, Shandong University, Ji'nan 250100, China
| |
Collapse
|
16
|
Han D, Cao H, Li M, Li X, Zhang S, He M, Hu J. Computational Study on the Mechanisms and Rate Constants of the Cl-Initiated Oxidation of Methyl Vinyl Ether in the Atmosphere. J Phys Chem A 2015; 119:719-27. [DOI: 10.1021/jp5112839] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Dandan Han
- Environment Research
Institute, Shandong University, Jinan 250100, People’s Republic of China
| | - Haijie Cao
- Environment Research
Institute, Shandong University, Jinan 250100, People’s Republic of China
| | - Mingyue Li
- Environment Research
Institute, Shandong University, Jinan 250100, People’s Republic of China
| | - Xin Li
- Environment Research
Institute, Shandong University, Jinan 250100, People’s Republic of China
| | - Shiqing Zhang
- Environment Research
Institute, Shandong University, Jinan 250100, People’s Republic of China
| | - Maoxia He
- Environment Research
Institute, Shandong University, Jinan 250100, People’s Republic of China
| | - Jingtian Hu
- Environment Research
Institute, Shandong University, Jinan 250100, People’s Republic of China
| |
Collapse
|
17
|
Theoretical studies on the mechanisms and rate constants for the hydroxylation of n-butyl, iso-butyl and tert-butyl vinyl ethers in atmosphere. Struct Chem 2014. [DOI: 10.1007/s11224-014-0517-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
18
|
Han D, Cao H, Li J, Li M, He M, Hu J. Computational study on the mechanisms and rate constants of the OH-initiated oxidation of ethyl vinyl ether in atmosphere. CHEMOSPHERE 2014; 111:61-69. [PMID: 24997901 DOI: 10.1016/j.chemosphere.2014.03.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 02/23/2014] [Accepted: 03/07/2014] [Indexed: 06/03/2023]
Abstract
The hydroxylation reactions of ethyl vinyl ether (EVE) in the present of O2 and NO are analyzed by using MPWB1K/6-311++G(3df,2p)//MPWB1K/6-31+G(d,p) level of theory. According to the calculated thermodynamic data, the detailed reaction mechanisms of EVE and OH are proposed. All of the ten possible reaction pathways are discussed. The major products of the title reaction are ethyl formate and formaldehyde, which is in accordance with experimental detection. The rate constants of the primary reactions over the temperature of 250-400K and the pressure range of 100-2000Torr are computed by employing MESMER program. At 298K and 760Torr, OH-addition channels are predominate and the total rate constant is ktot=4.53×10(-11)cm(3)molecule(-1)s(-1). The Arrhenius equation is obtained as ktot=6.27×10(-12)exp(611.5/T), according to the rate constants given at different temperatures. Finally, the atmospheric half life of EVE with respect to OH is estimated to be 2.13h.
Collapse
Affiliation(s)
- Dandan Han
- Environment Research Institute, Shandong University, Jinan 250100, PR China
| | - Haijie Cao
- Environment Research Institute, Shandong University, Jinan 250100, PR China
| | - Jing Li
- Environment Research Institute, Shandong University, Jinan 250100, PR China
| | - Mingyue Li
- Environment Research Institute, Shandong University, Jinan 250100, PR China
| | - Maoxia He
- Environment Research Institute, Shandong University, Jinan 250100, PR China.
| | - Jingtian Hu
- Environment Research Institute, Shandong University, Jinan 250100, PR China
| |
Collapse
|
19
|
Bravo I, Rodríguez A, Rodríguez D, Diaz-de-Mera Y, Notario A, Aranda A. Atmospheric Chemistry and Environmental Assessment of Inhalational Fluroxene. Chemphyschem 2013; 14:3834-42. [DOI: 10.1002/cphc.201300559] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Indexed: 11/08/2022]
|
20
|
Yang J, Miao J, Li X, Xu W. Cycloaddition of ozone to allyl alcohol, acrylic acid and allyl aldehyde: A comparative DFT study. Chem Phys 2013. [DOI: 10.1016/j.chemphys.2013.01.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
21
|
Zhou S, Barnes I, Zhu T, Benter T. Kinetic Study of Gas-Phase Reactions of OH and NO3 Radicals and O3 with iso-Butyl and tert-Butyl Vinyl Ethers. J Phys Chem A 2012; 116:8885-92. [DOI: 10.1021/jp305992a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shouming Zhou
- Bergische Universitaet Wuppertal, Physikalische Chemie/FBC, Gauss Strasse 20,
D-42119 Wuppertal, Germany
- State Key Joint Laboratory for
Environmental Simulation and Pollution Control, College of Environmental
Science, Peking University, 100871 Beijing,
China
| | - Ian Barnes
- Bergische Universitaet Wuppertal, Physikalische Chemie/FBC, Gauss Strasse 20,
D-42119 Wuppertal, Germany
| | - Tong Zhu
- State Key Joint Laboratory for
Environmental Simulation and Pollution Control, College of Environmental
Science, Peking University, 100871 Beijing,
China
| | - Thorsten Benter
- Bergische Universitaet Wuppertal, Physikalische Chemie/FBC, Gauss Strasse 20,
D-42119 Wuppertal, Germany
| |
Collapse
|
22
|
Han D, Cao H, Sun Y, Sun R, He M. Mechanistic and kinetic study on the ozonolysis of n-butyl vinyl ether, i-butyl vinyl ether and t-butyl vinyl ether. CHEMOSPHERE 2012; 88:1235-1240. [PMID: 22534197 DOI: 10.1016/j.chemosphere.2012.03.078] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Revised: 03/29/2012] [Accepted: 03/29/2012] [Indexed: 05/31/2023]
Abstract
Density functional theory (DFT) and ab initio method are employed to elucidate the mechanisms for O(3)-initiated oxidation of n-butyl vinyl ether (n-BVE) and its isomers (i-BVE and t-BVE). For each BVE, the reactions proceed via O(3) cycloaddition resulting in the formation of primary ozonides (POZs) and then two self-decomposition pathways of POZs are followed. Major products are identified to be formaldehyde and butyl formates (CH(3)CH(2)CH(2)CH(2)OCHO for n-BVE, (CH(3))(2)CHCH(2)OCHO for i-BVE and (CH(3))(3)COCHO for t-BVE). The total and individual rate constants for main product channels have been calculated using the modified multichannel Rice-Ramsperger-Kassel-Marcus (RRKM) approach. At 298 K and 101 kPa, the calculated total rate constants are 2.50×10(-16), 3.41×10(-16) and 4.17×10(-16) cm(3) molecule(-1) s(-1) for n-BVE+O(3), i-BVE+O(3) and t-BVE+O(3), respectively, which are in perfect agreement with experimental results. The total rate coefficients are almost pressure independent in the range of 0.001-101 kPa but obviously positive temperature dependent over the whole study temperature range (200-400 K). Also, the favorable reaction pathways have been determined through the estimation of branching ratios. Moreover, the influence of alkoxy group structure on the reactivity of vinyl ethers was examined.
Collapse
Affiliation(s)
- Dandan Han
- Environment Research Institute, Shandong University, Jinan 250100, PR China
| | | | | | | | | |
Collapse
|
23
|
Lal V, Khalizov AF, Lin Y, Galvan MD, Connell BT, Zhang R. Heterogeneous Reactions of Epoxides in Acidic Media. J Phys Chem A 2012; 116:6078-90. [DOI: 10.1021/jp2112704] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vinita Lal
- Department of Atmospheric Sciences and ‡Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Alexei F. Khalizov
- Department of Atmospheric Sciences and ‡Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Yun Lin
- Department of Atmospheric Sciences and ‡Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Maria D. Galvan
- Department of Atmospheric Sciences and ‡Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Brian T. Connell
- Department of Atmospheric Sciences and ‡Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Renyi Zhang
- Department of Atmospheric Sciences and ‡Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| |
Collapse
|
24
|
Yang X, Kiefer JH, Tranter RS. Thermal dissociation of ethylene glycol vinyl ether. Phys Chem Chem Phys 2011; 13:21288-300. [PMID: 22024976 DOI: 10.1039/c1cp21073d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The pyrolysis of ethylene glycol vinyl ether (EGVE), an initial product of 1,4-dioxane dissociation, was examined in a diaphragmless shock tube (DFST) using laser schlieren densitometry (LS) at 57 ± 2 and 122 ± 3 Torr over 1200-1800 K. DFST/time-of-flight mass spectrometry experiments were also performed to identify reaction products. EGVE was found to dissociate via two channels: (1) a molecular H atom transfer/C-O scission to produce C(2)H(3)OH and CH(3)CHO, and (2) a radical channel involving C-O bond fission generating ˙CH(2)CH(2)OH and ˙CH(2)CHO radicals, with the second channel being strongly dominant over the entire experimental range. A reaction mechanism was constructed for the pyrolysis of EGVE which simulates the LS profiles very well over the full experimental range. The decomposition of EGVE is clearly well into the falloff region for these conditions, and a Gorin model RRKM fit was obtained for the dominant radical channel. The results are in good agreement with the experimental data and suggest the following rate coefficient expressions: k(2,∞) = (6.71 ± 2.6) × 10(27) × T(-3.21)exp(-35512/T) s(-1); k(2)(120 Torr) = (1.23 ± 0.5) × 10(92) × T(-22.87)exp(-48 248/T) s(-1); k(2)(60 Torr) = (2.59 ± 1.0) × 10(88) × T(-21.96)exp(-46283/T) s(-1).
Collapse
Affiliation(s)
- Xueliang Yang
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL-60439, USA
| | | | | |
Collapse
|
25
|
HE MAOXIA, WANG HUI, SUN XIAOYAN, ZHANG QINGZHU, WANG WENXING. THEORETICAL STUDY OF OH-INITIATED ATMOSPHERIC OXIDATION FOR PROPYL VINYL ETHER. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2011. [DOI: 10.1142/s0219633609004721] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This paper reports a theoretical study on the reaction of propyl vinyl ether (PVE, CH3CH2CH2OCH=CH2) with OH radicals in the presence of O 2 and NO x. The reaction pathway has been studied with the density functional theory (DFT/B3LYP) at the 6-31G* level. The total energies of all geometries are corrected at the MP2/6-311+G** level. The profile of the potential energy surface was constructed. The possible channels involved in the reaction were discussed. The results show that six product pathways are energetically feasible for the degradation of PVE initiated by OH radicals in the atmosphere. The main products for this degradation reaction are propyl formate, formaldehyde, and glycolic acid propyl ester in which propyl formate and formaldehyde are mainly from the OH addition to C5 atom.
Collapse
Affiliation(s)
- MAOXIA HE
- Environment Research Institute, Shandong University, Jinan 250100, P. R. China
| | - HUI WANG
- Environment Research Institute, Shandong University, Jinan 250100, P. R. China
| | - XIAOYAN SUN
- Environment Research Institute, Shandong University, Jinan 250100, P. R. China
| | - QINGZHU ZHANG
- Environment Research Institute, Shandong University, Jinan 250100, P. R. China
| | - WENXING WANG
- Environment Research Institute, Shandong University, Jinan 250100, P. R. China
| |
Collapse
|
26
|
Han D, Cao H, Sun Y, He M. Mechanistic and kinetic study on the ozonolysis of ethyl vinyl ether and propyl vinyl ether. Struct Chem 2011. [DOI: 10.1007/s11224-011-9899-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
27
|
Leather KE, McGillen MR, Ghalaieny M, Shallcross DE, Percival CJ. Temperature-dependent kinetics for the ozonolysis of selected chlorinated alkenes in the gas phase. INT J CHEM KINET 2010. [DOI: 10.1002/kin.20533] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
28
|
Kerdouci J, Picquet‐Varrault B, Doussin J. Prediction of Rate Constants for Gas‐Phase Reactions of Nitrate Radical with Organic Compounds: A New Structure–Activity Relationship. Chemphyschem 2010; 11:3909-20. [DOI: 10.1002/cphc.201000673] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jamila Kerdouci
- Laboratoire Interuniversitaire des Systèmes Atmosphérique, UMR CNRS 7583, Université Paris Est Créteil et Université Paris Diderot, Institut Pierre Simon Laplace, 61 Avenue du Général de Gaulle, 94010 Créteil CEDEX (France), Fax: (+33) 145171560
| | - Bénédicte Picquet‐Varrault
- Laboratoire Interuniversitaire des Systèmes Atmosphérique, UMR CNRS 7583, Université Paris Est Créteil et Université Paris Diderot, Institut Pierre Simon Laplace, 61 Avenue du Général de Gaulle, 94010 Créteil CEDEX (France), Fax: (+33) 145171560
| | - Jean‐François Doussin
- Laboratoire Interuniversitaire des Systèmes Atmosphérique, UMR CNRS 7583, Université Paris Est Créteil et Université Paris Diderot, Institut Pierre Simon Laplace, 61 Avenue du Général de Gaulle, 94010 Créteil CEDEX (France), Fax: (+33) 145171560
| |
Collapse
|
29
|
Pimentel AS, Tyndall GS, Orlando JJ, Hurley MD, Wallington TJ, Sulbaek Andersen MP, Marshall P, Dibble TS. Atmospheric chemistry of isopropyl formate and tert-butyl formate. INT J CHEM KINET 2010. [DOI: 10.1002/kin.20498] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
30
|
Wang L, Ge M, Wang W. Kinetic study of the reactions of chlorine atoms with ethyl vinyl ether and propyl vinyl ether. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2009.03.047] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
31
|
Zhou S, Barnes I, Zhu T, Benter T. Rate Coefficients for the Gas-Phase Reactions of OH and NO3 Radicals and O3 with Ethyleneglycol Monovinyl Ether, Ethyleneglycol Divinyl Ether, and Diethyleneglycol Divinyl Ether. J Phys Chem A 2009; 113:858-65. [DOI: 10.1021/jp809732u] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shouming Zhou
- State Key Joint Laboratory for Environmental Simulation and Pollution Control, College of Environmental Science, Peking University, 100871 Beijing, China, and Bergische Universitaet Wuppertal, Physikalische Chemie/FBC, Gauss Strasse 20, D-42119 Wuppertal, Germany
| | - Ian Barnes
- State Key Joint Laboratory for Environmental Simulation and Pollution Control, College of Environmental Science, Peking University, 100871 Beijing, China, and Bergische Universitaet Wuppertal, Physikalische Chemie/FBC, Gauss Strasse 20, D-42119 Wuppertal, Germany
| | - Tong Zhu
- State Key Joint Laboratory for Environmental Simulation and Pollution Control, College of Environmental Science, Peking University, 100871 Beijing, China, and Bergische Universitaet Wuppertal, Physikalische Chemie/FBC, Gauss Strasse 20, D-42119 Wuppertal, Germany
| | - Thorsten Benter
- State Key Joint Laboratory for Environmental Simulation and Pollution Control, College of Environmental Science, Peking University, 100871 Beijing, China, and Bergische Universitaet Wuppertal, Physikalische Chemie/FBC, Gauss Strasse 20, D-42119 Wuppertal, Germany
| |
Collapse
|
32
|
Long B, Huang MQ, Wang ZY, Zhang WJ. Theoretical Studies on the Kinetics and Mechanisms of Reactions for Methyl Vinyl Ether and Ozone. CHINESE J CHEM PHYS 2008. [DOI: 10.1088/1674-0068/21/04/324-332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
33
|
The near UV absorption cross-sections and the rate coefficients for the ozonolysis of a series of styrene-like compounds. J Photochem Photobiol A Chem 2008. [DOI: 10.1016/j.jphotochem.2007.09.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
34
|
Scarfogliero M, Picquet-Varrault B, Salce J, Durand-Jolibois R, Doussin JF. Kinetic and Mechanistic Study of the Gas-Phase Reactions of a Series of Vinyl Ethers with the Nitrate Radical. J Phys Chem A 2006; 110:11074-81. [PMID: 16986840 DOI: 10.1021/jp063357j] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
NO(3) oxidation of methyl, ethyl, propyl, and butyl vinyl ethers has been studied under tropospheric conditions (atmospheric pressure and T = 293 +/- 3 K) in the LISA indoor simulation chamber. NO(3) was produced inside the reactor by thermal decomposition of N(2)O(5) previously added to the air-VOC mixture, and concentrations were monitored using FTIR spectrometry. All the kinetic experiments were carried out by relative rate technique using isoprene as reference compound, leading to the rate constants k(1) = (7.2 +/- 1.5) x 10(-13), k(2) = (13.1 +/- 2.7) x 10(-13), k(3) = (13.3 +/- 3.0) x 10(-13), and k(4) = (17.0 +/- 3.7) x 10(-13) cm(3) molecule(-1) s(-1) for methyl, ethyl, propyl, and butyl vinyl ethers, respectively. Main oxidation products have been identified like being formaldehyde and respectively methyl, ethyl, propyl, and butyl formates. Production yields of oxidation products were close to 50%. Oxygenated nitrates and peroxynitrates were also detected.
Collapse
Affiliation(s)
- Michaël Scarfogliero
- Laboratoire Interuniversitaire des Systèmes Atmosphériques, UMR-CNRS 7583, Université Paris 12, 94010 Créteil Cedex.
| | | | | | | | | |
Collapse
|