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Koshlyakov PV, Barkova DA, Gerasimov IE, Chesnokov EN, Zhang X, Krasnoperov LN. Kinetics of the gas-phase reaction of hydroxyl radicals with trimethyl phosphate over the 273-837 K temperature range. RSC Adv 2021; 11:14121-14131. [PMID: 35423916 PMCID: PMC8697678 DOI: 10.1039/d1ra00911g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 04/08/2021] [Indexed: 11/21/2022] Open
Abstract
The kinetics of the reaction of hydroxyl radical (OH) with trimethyl phosphate (CH3O)3PO (TMP) (reaction (1)) OH + TMP → products (1) was studied at the bath gas (He) pressure of 1 bar over the 273–837 K temperature range. Hydroxyl radicals were produced in fast reactions of electronically excited oxygen atoms O(1D) with either H2O or H2. Excited oxygen atoms O(1D) were produced by photolysis of ozone, O3, at 266 nm (4th harmonic of Nd:YAG laser) over the 273–470 K temperature range and by photolysis of N2O at 193 nm (ArF excimer laser) over the whole temperature range including the elevated temperature range 470–837 K. The reaction rate constant exhibits a V-shaped temperature dependence, negative in the low temperature range, 273–470 K (the rate constant decreases with temperature), and positive in the elevated temperature range, 470–837 K (the rate constant increases with temperature), with a turning point at 471 K. The rate constant could be fairly well fitted with the three parameter modified Arrhenius expression, k1 = 7.52 × 10−18 (T/298)9 exp(34 367 J mol−1/RT) cm3 per molecule per s (273–837 K). Previously, only one indirect experimental measurement at a single (ambient) temperature was available. The temperature dependence over an extended temperature range obtained in this study together with the peculiar V-shaped temperature dependence will have an impact on the modelling of the flame inhibition by phosphates as well on the further understanding of the mechanisms of elementary chemical reactions. Rate constant of reaction 1 at 1 bar, over the temperature range 273–837 K.![]()
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Affiliation(s)
- P V Koshlyakov
- Institute of Chemical Kinetics and Combustion, Siberian Branch of Russian Academy of Sciences Novosibirsk 630090 Russian Federation
| | - D A Barkova
- Institute of Chemical Kinetics and Combustion, Siberian Branch of Russian Academy of Sciences Novosibirsk 630090 Russian Federation
| | - I E Gerasimov
- Institute of Chemical Kinetics and Combustion, Siberian Branch of Russian Academy of Sciences Novosibirsk 630090 Russian Federation
| | - E N Chesnokov
- Institute of Chemical Kinetics and Combustion, Siberian Branch of Russian Academy of Sciences Novosibirsk 630090 Russian Federation
| | - Xiaokai Zhang
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology Newark NJ 07102 USA
| | - L N Krasnoperov
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology Newark NJ 07102 USA
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Nguyen TN, Nguyen HMT. Prediction of the product channels in the reaction of the methyl radical with fulminic acid. INT J CHEM KINET 2020. [DOI: 10.1002/kin.21458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Trong Nghia Nguyen
- School of Chemical Engineering, Hanoi University of Science and Technology Hanoi Vietnam
| | - Hue Minh Thi Nguyen
- Faculty of Chemistry and Center for Computational Science Hanoi National University of Education Hanoi Vietnam
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Zhang X, Sangwan M, Yan C, Koshlyakov PV, Chesnokov EN, Bedjanian Y, Krasnoperov LN. Disproportionation Channel of the Self-reaction of Hydroxyl Radical, OH + OH → H 2O + O, Revisited. J Phys Chem A 2020; 124:3993-4005. [PMID: 32396004 DOI: 10.1021/acs.jpca.0c00624] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The rate constant of the disproportionation channel 1a of the self-reaction of hydroxyl radicals OH + OH → H2O + O (1a) was measured at ambient temperature as well as over an extended temperature range to resolve the discrepancy between the IUPAC recommended value (k1a = 1.48 × 10-12 cm3 molecule-1 s-1, discharge flow system, Bedjanian et al. J. Phys. Chem. A 1999, 103, 7017) and a factor of ca. 1.8 higher value by pulsed laser photolysis (2.7 × 10-12 cm3 molecule-1 s-1, Bahng et al. J. Phys. Chem. A 2007, 111, 3850, and 2.52 × 10-12 cm3 molecule-1 s-1, Altinay et al. J. Phys. Chem. A 2014, 118, 38). To resolve this discrepancy, the rate constant of the title reaction was remeasured in three laboratories using two different experimental techniques, namely, laser-pulsed photolysis-transient UV absorption and fast discharge flow system coupled with mass spectrometry. Two different precursors were used to generate OH radicals in the laser-pulsed photolysis experiments. The experiments confirmed the low value of the rate constant at ambient temperature (k1a = (1.4 ± 0.2) × 10-12 cm3 molecule-1 s-1 at 295 K) as well as the V-shaped temperature dependence, negative at low temperatures and positive at high temperatures, with a turning point at 427 K: k1a = 8.38 × 10-14 × (T/300)1.99 × exp(855/T) cm3 molecule-1 s-1 (220-950 K). Recommended expression over the 220-2384 K temperature range: k1a = 2.68 × 10-14 × (T/300)2.75 × exp(1165/T) cm3 molecule-1 s-1 (220-2384 K).
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Affiliation(s)
- Xiaokai Zhang
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark 07102, New Jersey, United States
| | - Manuvesh Sangwan
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark 07102, New Jersey, United States
| | - Chao Yan
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark 07102, New Jersey, United States
| | - Pavel V Koshlyakov
- Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
| | - Evgeni N Chesnokov
- Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
| | - Yuri Bedjanian
- Institut de Combustion, Aérothermique, Réactivité et Environnement (ICARE), CNRS, Orléans 45071, Cedex 2, France
| | - Lev N Krasnoperov
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark 07102, New Jersey, United States
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Yan C, Krasnoperov LN. Pressure-Dependent Kinetics of the Reaction between CH3O2 and OH: TRIOX Formation. J Phys Chem A 2019; 123:8349-8357. [DOI: 10.1021/acs.jpca.9b03861] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Chao Yan
- Department of Mechanical Aerospace Engineering, Princeton University, Princeton, New Jersey 08540, United States
| | - Lev N. Krasnoperov
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, University Heights, Newark, New Jersey 07102, United States
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Yan C, Kocevska S, Krasnoperov LN. Kinetics of the Reaction of CH3O2 Radicals with OH Studied over the 292–526 K Temperature Range. J Phys Chem A 2016; 120:6111-21. [DOI: 10.1021/acs.jpca.6b04213] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chao Yan
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology,
University Heights, Newark, New Jersey 07102, United States
| | - Stefani Kocevska
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology,
University Heights, Newark, New Jersey 07102, United States
| | - Lev N. Krasnoperov
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology,
University Heights, Newark, New Jersey 07102, United States
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Wang S, Li S, Davidson DF, Hanson RK. Shock Tube Measurement of the High-Temperature Rate Constant for OH + CH3 → Products. J Phys Chem A 2015; 119:8799-805. [PMID: 26230910 DOI: 10.1021/acs.jpca.5b05725] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reaction between hydroxyl (OH) and methyl radicals (CH3) is critical to hydrocarbon oxidation. Motivated by the sparseness of its high-temperature rate constant data and the large uncertainties in the existing literature values, the current study has remeasured the overall rate constant of the OH + CH3 reaction and extended the measurement temperature range to 1214-1933 K, using simultaneous laser absorption diagnostics for OH and CH3 radicals behind incident and reflected shock waves. tert-Butyl hydroperoxide and azomethane were used as pyrolytic sources for the OH and CH3 radicals, respectively. The current study bridged the temperature ranges of existing experimental data, and good agreement is seen between the current measurement and some previous experimental and theoretical high-temperature studies. A recommendation for the rate constant expression of the title reaction, based on the weighted average of the high-temperature data from selected studies, is given by k1 = 4.19 × 10(1)(T/K)(3.15) exp(5270 K/T) cm(3) mol(-1) s(-1) ±30%, which is valid over 1000-2500 K.
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Affiliation(s)
- Shengkai Wang
- High Temperature Gasdynamics Laboratory, Mechanical Engineering Department, Stanford University, Stanford, California 94305, United States
| | - Sijie Li
- High Temperature Gasdynamics Laboratory, Mechanical Engineering Department, Stanford University, Stanford, California 94305, United States
| | - David F Davidson
- High Temperature Gasdynamics Laboratory, Mechanical Engineering Department, Stanford University, Stanford, California 94305, United States
| | - Ronald K Hanson
- High Temperature Gasdynamics Laboratory, Mechanical Engineering Department, Stanford University, Stanford, California 94305, United States
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Sangwan M, Yan C, Chesnokov EN, Krasnoperov LN. Reaction CH3 + CH3 → C2H6 Studied over the 292–714 K Temperature and 1–100 bar Pressure Ranges. J Phys Chem A 2015; 119:7847-57. [DOI: 10.1021/acs.jpca.5b01276] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Manuvesh Sangwan
- Department
of Chemistry and Environmental Science, New Jersey Institute of Technology, University Heights, Newark, New Jersey 07102, United States
| | - Chao Yan
- Department
of Chemistry and Environmental Science, New Jersey Institute of Technology, University Heights, Newark, New Jersey 07102, United States
| | | | - Lev N. Krasnoperov
- Department
of Chemistry and Environmental Science, New Jersey Institute of Technology, University Heights, Newark, New Jersey 07102, United States
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Li S, Dames E, Davidson DF, Hanson RK. High-Temperature Measurements of the Reactions of OH with Ethylamine and Dimethylamine. J Phys Chem A 2013; 118:70-7. [DOI: 10.1021/jp411141w] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sijie Li
- Department of Mechanical
Engineering, Stanford University, Stanford, California 94305, United States
| | - Enoch Dames
- Department of Mechanical
Engineering, Stanford University, Stanford, California 94305, United States
| | - David F. Davidson
- Department of Mechanical
Engineering, Stanford University, Stanford, California 94305, United States
| | - Ronald K. Hanson
- Department of Mechanical
Engineering, Stanford University, Stanford, California 94305, United States
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Sangwan M, Krasnoperov LN. Kinetics of the Gas Phase Reaction CH3 + HO2. J Phys Chem A 2013; 117:2916-23. [DOI: 10.1021/jp4000889] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Manuvesh Sangwan
- Department of Chemistry
and Environmental Science, New Jersey Institute of Technology, University Heights,
Newark, New Jersey 07102, United States
| | - Lev N. Krasnoperov
- Department of Chemistry
and Environmental Science, New Jersey Institute of Technology, University Heights,
Newark, New Jersey 07102, United States
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Affiliation(s)
- Chen Qu
- Department of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University , Atlanta, Georgia, USA
| | - Joel M. Bowman
- Department of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University , Atlanta, Georgia, USA
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Sangwan M, Krasnoperov LN. Disproportionation Channel of Self-Reaction of Hydroxyl Radical, OH + OH → H2O + O, Studied by Time-Resolved Oxygen Atom Trapping. J Phys Chem A 2012; 116:11817-22. [DOI: 10.1021/jp308885j] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Manuvesh Sangwan
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, University Heights, Newark, New Jersey 07102, United States
| | - Lev N. Krasnoperov
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, University Heights, Newark, New Jersey 07102, United States
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