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Theoretical investigation for the reactions of hydrogen atom with dimethyl sulfide, ethyl methyl sulfide: Mechanism and kinetics properties. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2022.113893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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2
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Shi G, Song J. Theoretical study on the kinetics of the reactions of hydrogen atom, methyl radical with methanethiol and ethanethiol. Mol Phys 2022. [DOI: 10.1080/00268976.2022.2106319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Gai Shi
- State Key Laboratory of Engines, Tianjin University, Tianjin, People’s Republic of China
| | - Jinou Song
- State Key Laboratory of Engines, Tianjin University, Tianjin, People’s Republic of China
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3
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Shi G, Song J. Theoretical investigation for the reactions of triplet oxygen atom with dimethyl sulphide, ethyl methyl sulphide: mechanism and kinetics properties. Mol Phys 2022. [DOI: 10.1080/00268976.2022.2098196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Gai Shi
- State Key Laboratory of Engines, Tianjin University, Tianjin, People’s Republic of China
| | - Jinou Song
- State Key Laboratory of Engines, Tianjin University, Tianjin, People’s Republic of China
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4
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Mechanistic studies of the reactions of nitrogen dioxide with dimethyl ether and methyl ethyl ether. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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Theoretical studies of the reactions of methyl ethyl ether with hydrogen atom, triplet oxygen atom and methyl radical. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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6
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Theoretical studies of the reactions of methyl radical with dimethyl ether and 1,2-ethanediol. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2021.113538] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Shi G, Song J, Tian P, Li Z. Kinetics study on the reactions of dimethyl ether with triplet oxygen and hydrogen atoms. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138855] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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8
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Rousso AC, Jasper AW, Ju Y, Hansen N. Extreme Low-Temperature Combustion Chemistry: Ozone-Initiated Oxidation of Methyl Hexanoate. J Phys Chem A 2020; 124:9897-9914. [PMID: 33174431 DOI: 10.1021/acs.jpca.0c07584] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The accelerating chemical effect of ozone addition on the oxidation chemistry of methyl hexanoate [CH3(CH2)4C(═O)OCH3] was investigated over a temperature range from 460 to 940 K. Using an externally heated jet-stirred reactor at p = 700 Torr (residence time τ = 1.3 s, stoichiometry φ = 0.5, 80% argon dilution), we explored the relevant chemical pathways by employing molecular-beam mass spectrometry with electron and single-photon ionization to trace the temperature dependencies of key intermediates, including many hydroperoxides. In the absence of ozone, reactivity is observed in the so-called low-temperature chemistry (LTC) regime between 550 and 700 K, which is governed by hydroperoxides formed from sequential O2 addition and isomerization reactions. At temperatures above 700 K, we observed the negative temperature coefficient (NTC) regime, in which the reactivity decreases with increasing temperatures, until near 800 K, where the reactivity increases again. Upon addition of ozone (1000 ppm), the overall reactivity of the system is dramatically changed due to the time scale of ozone decomposition in comparison to fuel oxidation time scales of the mixtures at different temperatures. While the LTC regime seems to be only slightly affected by the addition of ozone with respect to the identity and quantity of the observed intermediates, we observed an increased reactivity in the intermediate NTC temperature range. Furthermore, we observed experimental evidence for an additional oxidation regime in the range near 500 K, herein referred to as the extreme low-temperature chemistry (ELTC) regime. Experimental evidence and theoretical rate constant calculations indicate that this ELTC regime is likely to be initiated by H abstraction from methyl hexanoate via O atoms, which originate from thermal O3 decomposition. The theoretical calculations show that the rate constants for methyl ester initiation via abstraction by O atoms increase dramatically with the size of the methyl ester, suggesting that ELTC is likely not important for the smaller methyl esters. Experimental evidence is provided indicating that, similar to the LTC regime, the chemistry in the ELTC regime is dominated by hydroperoxide chemistry. However, mass spectra recorded at various reactor temperatures and at different photon energies provide experimental evidence of some differences in chemical species between the ELTC and the LTC temperature ranges.
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Affiliation(s)
- Aric C Rousso
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Ahren W Jasper
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Yiguang Ju
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Nils Hansen
- Combustion Research Facility, Sandia National Laboratories, Livermore, California 94551, United States
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9
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Cavallotti C, Pelucchi M, Georgievskii Y, Klippenstein SJ. EStokTP: Electronic Structure to Temperature- and Pressure-Dependent Rate Constants—A Code for Automatically Predicting the Thermal Kinetics of Reactions. J Chem Theory Comput 2018; 15:1122-1145. [DOI: 10.1021/acs.jctc.8b00701] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- C. Cavallotti
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Milan, Italy
| | - M. Pelucchi
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Milan, Italy
| | - Y. Georgievskii
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - S. J. Klippenstein
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
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10
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Mertens LA, Awan IA, Sheen DA, Manion JA. Evaluated Site-Specific Rate Constants for Reaction of Isobutane with H and CH3: Shock Tube Experiments Combined with Bayesian Model Optimization. J Phys Chem A 2018; 122:9518-9541. [DOI: 10.1021/acs.jpca.8b08781] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Laura A. Mertens
- Chemical Sciences Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8320, United States
| | - Iftikhar A. Awan
- Chemical Sciences Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8320, United States
| | - David A. Sheen
- Chemical Sciences Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8320, United States
| | - Jeffrey A. Manion
- Chemical Sciences Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8320, United States
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11
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Peukert S, Yatsenko P, Fikri M, Schulz C. High-Temperature Rate Constants for the Reaction of Hydrogen Atoms with Tetramethoxysilane and Reactivity Analogies between Silanes and Oxygenated Hydrocarbons. J Phys Chem A 2018; 122:5289-5298. [DOI: 10.1021/acs.jpca.8b03160] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sebastian Peukert
- IVG, Institute for Combustion and Gas Dynamics−Reactive Fluids, and CENIDE, Center for Nanointegration Duisburg-Essen, University of Duisburg-Essen, 47048 Duisburg, Germany
| | - Pavel Yatsenko
- Joint Institute for High Temperatures, Russian Academy of Sciences, 119071 Moscow, Russia
| | - Mustapha Fikri
- IVG, Institute for Combustion and Gas Dynamics−Reactive Fluids, and CENIDE, Center for Nanointegration Duisburg-Essen, University of Duisburg-Essen, 47048 Duisburg, Germany
| | - Christof Schulz
- IVG, Institute for Combustion and Gas Dynamics−Reactive Fluids, and CENIDE, Center for Nanointegration Duisburg-Essen, University of Duisburg-Essen, 47048 Duisburg, Germany
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12
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Yoshizawa H, Nagashima H, Murakami Y, Takahashi K. Kinetic Studies on the Reactions of Atomic Oxygen with Furan, 2-Methylfuran, and 2,5-Dimethylfuran at Elevated Temperatures. CHEM LETT 2017. [DOI: 10.1246/cl.170467] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Haruka Yoshizawa
- Department of Materials and Life Sciences, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554
| | - Hiroki Nagashima
- Department of Materials and Life Sciences, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554
| | - Yoshinori Murakami
- Department of Materials Engineering, Nagaoka College, National Institute of Technology, 888 Nishikatakai, Nagaoka, Niigata 940-8532
| | - Kazuo Takahashi
- Department of Materials and Life Sciences, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554
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14
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Saheb V. Theoretical studies on the kinetics of hydrogen abstraction reactions of H and CH3 radicals from CH3OCH3 and some of their H/D isotopologues. J Phys Chem A 2015; 119:4711-7. [PMID: 25873440 DOI: 10.1021/acs.jpca.5b00911] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The hydrogen abstraction reactions by H and CH3 radicals from CH3OCH3 and some of their H/D isotopologues are studied by semiclassical transition state theory. Many high-level density functional, ab initio, and combinatory quantum chemical methods, including B3LYP, BB1K, MP2, MP4, CCSD(T), CBS-Q, and G4 methods, are employed to compute the energies and rovibrational properties of the stationary points for the title reactions. Xij vibrational anharmonicity coefficients, used in semiclassical transition state theory, are computed at the B3LYP, BB1K, and MP2 levels of theory. Thermal rate coefficients and kinetic isotope effects are computed over the temperature range from 200 to 2500 K and compared with available experimental data. The computed rate constants for the title reactions are represented as the equation k(T) = ATn exp[−E(T + T0)/(T2 + T02)].
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Affiliation(s)
- Vahid Saheb
- Department of Chemistry, Shahid-Bahonar University of Kerman, Kerman 76169, Iran
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15
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Rodriguez A, Frottier O, Herbinet O, Fournet R, Bounaceur R, Fittschen C, Battin-Leclerc F. Experimental and Modeling Investigation of the Low-Temperature Oxidation of Dimethyl Ether. J Phys Chem A 2015; 119:7905-23. [DOI: 10.1021/acs.jpca.5b01939] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anne Rodriguez
- Laboratoire
Réactions et Génie des Procédés, CNRS, Université de Lorraine, BP 20451, 1 rue Grandville, 54000 Nancy, France
| | - Ophélie Frottier
- Laboratoire
Réactions et Génie des Procédés, CNRS, Université de Lorraine, BP 20451, 1 rue Grandville, 54000 Nancy, France
| | - Olivier Herbinet
- Laboratoire
Réactions et Génie des Procédés, CNRS, Université de Lorraine, BP 20451, 1 rue Grandville, 54000 Nancy, France
| | - René Fournet
- Laboratoire
Réactions et Génie des Procédés, CNRS, Université de Lorraine, BP 20451, 1 rue Grandville, 54000 Nancy, France
| | - Roda Bounaceur
- Laboratoire
Réactions et Génie des Procédés, CNRS, Université de Lorraine, BP 20451, 1 rue Grandville, 54000 Nancy, France
| | - Christa Fittschen
- PhysicoChimie
des Processus de Combustion et de l’Atmosphère (PC2A) UMR 8522 CNRS/Lille 1, Université de Lille, Cité
scientifique, 59655 Villeneuve d’Ascq
Cedex, France
| | - Frédérique Battin-Leclerc
- Laboratoire
Réactions et Génie des Procédés, CNRS, Université de Lorraine, BP 20451, 1 rue Grandville, 54000 Nancy, France
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Paraskevas PD, Sabbe MK, Reyniers MF, Papayannakos NG, Marin GB. Kinetic Modeling of α-Hydrogen Abstractions from Unsaturated and Saturated Oxygenate Compounds by Hydrogen Atoms. J Phys Chem A 2014; 118:9296-309. [DOI: 10.1021/jp503570e] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Paschalis D. Paraskevas
- Laboratorium
voor Chemische Technologie, Universiteit Gent, Technologiepark
914, B-9052 Zwijnaarde,
Gent, Belgium
- National Technical University of Athens, 9 Heroon Politechniou Str., 15780 Athens, Greece
| | - Maarten K. Sabbe
- Laboratorium
voor Chemische Technologie, Universiteit Gent, Technologiepark
914, B-9052 Zwijnaarde,
Gent, Belgium
| | - Marie-Françoise Reyniers
- Laboratorium
voor Chemische Technologie, Universiteit Gent, Technologiepark
914, B-9052 Zwijnaarde,
Gent, Belgium
| | - Nikos G. Papayannakos
- National Technical University of Athens, 9 Heroon Politechniou Str., 15780 Athens, Greece
| | - Guy B. Marin
- Laboratorium
voor Chemische Technologie, Universiteit Gent, Technologiepark
914, B-9052 Zwijnaarde,
Gent, Belgium
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17
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Bentz T, Szőri M, Viskolcz B, Olzmann M. Pyrolysis of Ethyl Iodide as Hydrogen Atom Source: Kinetics and Mechanism in the Temperature Range 950–1200 K. Z PHYS CHEM 2011. [DOI: 10.1524/zpch.2011.0178] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
Ethyl iodide is a well known H atom precursor in shock tube experiments. In the present work, we study peculiarities, when C2H5I is used under conditions, where its decomposition is not longer fast compared to consecutive bimolecular reactions. On the basis of shock tube experiments with detection of H and I atoms by resonance absorption spectrometry, accompanied by quantum chemical (CCSD(T)/6-311G//CCSD/6-311G) and statistical rate theory calculations, we propose a small mechanism (5 reactions, 7 species) and kinetic data, which allow an adequate description of C2H5I pyrolysis as a H atom source down to temperatures between 950 and 1200 K at pressures ranging from 1 to 4 bar: C2H5I→C2H5 + I (1), k
1 = 9.9 × 1012 exp(−23200 K/T) s−1; C2H5 + M→C 2H4 + H + M (2), k
2 = 1.7 × 10−6 exp(−16800 KT) cm3 s−1 [D. L. Baulch et al., J. Phys. Chem. Ref. Data 34 (2005) 757]; C2H5I→C2H4 + HI (3), k
3 = 1.7 × 1013 exp(−26680 KT) s−1; H + HI→H2 + I (4), k
4 = 7.9 × 10−11 exp(−330 KT) cm3 s−1 [D. L. Baulch et al., J. Phys. Chem. Ref. Data 10(Suppl. 1) (1981) 1]; C2H5I + H→C2H5 + HI (5), k
5 = 7.0 × 10−9 exp(−3940 KT) cm3 s−1. The latter bimolecular abstraction step turned out crucial for an adaquate d escription of the hydrogen atom concentration-time profiles in the above mentioned temperature and pressure range for initial concentrations [C2H5I]0 > 2 × 1013 cm−3 corresponding to mole fractions > 1 ppm.
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Affiliation(s)
- Tobias Bentz
- Karlsruher Institut für Technologie (KIT), Institut für Physikalische Chemie, Karlsruhe, Deutschland
| | - Milan Szőri
- University of Szeged, Dept. of Chemical Informatics, Szeged 6725, Ungarn
| | - Béla Viskolcz
- University of Szeged, Dept. of Chemical Informatics, Szeged 6725, Ungarn
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Carr SA, Blitz MA, Seakins PW. Product branching fractions for the reaction of O(3P) atoms with methanol and ethanol. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.06.060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Bravo I, Díaz-de-Mera Y, Aranda A, Smith K, Shine KP, Marston G. Atmospheric chemistry of C4F9OC2H5 (HFE-7200), C4F9OCH3 (HFE-7100), C3F7OCH3 (HFE-7000) and C3F7CH2OH: temperature dependence of the kinetics of their reactions with OH radicals, atmospheric lifetimes and global warming potentials. Phys Chem Chem Phys 2010; 12:5115-25. [DOI: 10.1039/b923092k] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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20
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Fernandes RX, Fittschen C, Hippler H. Kinetic investigations of the unimolecular decomposition of dimethylether behind shock waves. ACTA ACUST UNITED AC 2009. [DOI: 10.1007/s11144-009-5505-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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