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Shang Y, Yan G, Cai Y, Lu L, Zhao H, Sun R. Theoretical Investigation on Water-Free, Water- and Self-Assisted H-Abstraction Reactions from Dimethylamine by Hydroxy Radicals. J Phys Chem A 2024; 128:6264-6273. [PMID: 39034617 DOI: 10.1021/acs.jpca.4c02732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2024]
Abstract
Accurate branching ratios of the H-abstraction reactions from dimethylamine (DMA) by OH radicals are important in understanding the atmospheric fate of DMA. In this work, the reaction kinetics of the water-free, water-assisted, and self-assisted H-abstraction reactions between DMA and OH radicals are accurately determined using the multipath canonical variational theory with the small-curvature tunneling correction, to explore the catalytic effects of the reactant (DMA) and product (water). To choose a suitable method that well describes the current reaction systems, various combinations with seven DFT methods and six basis sets are first evaluated, and the M08-HX/ma-TZVP method is identified as the most appropriate, with a mean unsigned deviation of 0.9 kcal mol-1 against the gold-standard CCSD(T)/CBS(T-Q) method. Based on the determined potential energy surfaces with the considerations of ground-state structures and specific-reaction parameters of zero-point energies, rate constants and branching ratios are calculated in a wide temperature range. The calculations show that the participation of water and DMA can lead to three-body complexes with a lower energy and influence the energy barriers, but neither of them shows the catalytic effect on the H-abstraction reactions in terms of kinetics. Additionally, the branching ratio analysis demonstrates that the product distribution is significantly altered in the presence of DMA and water.
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Affiliation(s)
- Yanlei Shang
- Energy Research Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250014, P. R. China
- Shandong Technology Innovation Center of Carbon Neutrality, Jinan, Shandong 250014, P. R. China
- Key Laboratory of Extreme Material Dynamics Technology, Chengdu, Sichuan 610031, P. R. China
| | - Guihuan Yan
- Shandong Technology Innovation Center of Carbon Neutrality, Jinan, Shandong 250014, P. R. China
- Ecology Institute of Shandong Academy of Sciences, Jinan, Shandong 250014, P. R. China
| | - Yang Cai
- Key Laboratory of Extreme Material Dynamics Technology, Chengdu, Sichuan 610031, P. R. China
- The Peac Institute of Multiscale Sciences, Chengdu, Sichuan 610031, P. R. China
| | - Lei Lu
- Key Laboratory of Extreme Material Dynamics Technology, Chengdu, Sichuan 610031, P. R. China
- School of Materials Science and Engineering, Dynamic Materials Data Science Center, Southwest Jiaotong University, Chengdu, Sichuan 610031, P. R. China
| | - Haiyong Zhao
- Xiling DigitIntel Institute, Chengdu, Sichuan 610000, P. R. China
| | - Rongfeng Sun
- Energy Research Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250014, P. R. China
- Shandong Technology Innovation Center of Carbon Neutrality, Jinan, Shandong 250014, P. R. China
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2
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Shang Y, Luo SN. Insights into the role of the H-abstraction reaction kinetics of amines in understanding their degeneration fates under atmospheric and combustion conditions. Phys Chem Chem Phys 2024. [PMID: 39028293 DOI: 10.1039/d4cp02187h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Amines, a class of prototypical volatile organic compounds, have garnered considerable interest within the context of atmospheric and combustion chemistry due to their substantial contributions to the formation of hazardous pollutants in the atmosphere. In the current energy landscape, the implementation of carbon-neutral energy and strategic initiatives leads to generation of new amine sources that cannot be overlooked in terms of the emission scale. To reduce the emission level of amines from their sources and mitigate their impact on the formation of harmful substances, a comprehensive understanding of the fundamental reaction kinetics during the degeneration process of amines is imperative. This perspective article first presents an overview of both traditional amine sources and emerging amine sources within the context of carbon peaking and carbon neutrality and then highlights the importance of H-abstraction reactions in understanding the atmospheric and combustion chemistry of amines from the perspective of reaction kinetics. Subsequently, the current experimental and theoretical techniques for investigating the H-abstraction reactions of amines are introduced, and a concise summary of research endeavors made in this field over the past few decades is provided. In order to provide accurate kinetic parameters of the H-abstraction reactions of amines, advanced kinetic calculations are performed using the multi-path canonical variational theory combined with the small-curvature tunneling and specific-reaction parameter methods. By comparing with the literature data, current kinetic calculations are comprehensively evaluated, and these validated data are valuable for the development of the reaction mechanism of amines.
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Affiliation(s)
- Yanlei Shang
- Energy Research Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong, 250014, P. R. China.
- School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China
- Key Laboratory of Extreme Material Dynamics Technology, Chengdu, Sichuan 610031, P. R. China
| | - S N Luo
- School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China
- Key Laboratory of Extreme Material Dynamics Technology, Chengdu, Sichuan 610031, P. R. China
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3
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Berndt T, Chen J, Kjærgaard ER, Møller KH, Tilgner A, Hoffmann EH, Herrmann H, Crounse JD, Wennberg PO, Kjaergaard HG. Hydrotrioxide (ROOOH) formation in the atmosphere. Science 2022; 376:979-982. [PMID: 35617402 DOI: 10.1126/science.abn6012] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Organic hydrotrioxides (ROOOH) are known to be strong oxidants used in organic synthesis. Previously, it has been speculated that they are formed in the atmosphere through the gas-phase reaction of organic peroxy radicals (RO2) with hydroxyl radicals (OH). Here, we report direct observation of ROOOH formation from several atmospherically relevant RO2 radicals. Kinetic analysis confirmed rapid RO2 + OH reactions forming ROOOH, with rate coefficients close to the collision limit. For the OH-initiated degradation of isoprene, global modeling predicts molar hydrotrioxide formation yields of up to 1%, which represents an annual ROOOH formation of about 10 million metric tons. The atmospheric lifetime of ROOOH is estimated to be minutes to hours. Hydrotrioxides represent a previously omitted substance class in the atmosphere, the impact of which needs to be examined.
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Affiliation(s)
- Torsten Berndt
- Atmospheric Chemistry Department (ACD), Leibniz Institute for Tropospheric Research (TROPOS), 04318 Leipzig, Germany
| | - Jing Chen
- Department of Chemistry, University of Copenhagen, DK-2100 Copenhagen Ø, Denmark
| | - Eva R Kjærgaard
- Department of Chemistry, University of Copenhagen, DK-2100 Copenhagen Ø, Denmark
| | - Kristian H Møller
- Department of Chemistry, University of Copenhagen, DK-2100 Copenhagen Ø, Denmark
| | - Andreas Tilgner
- Atmospheric Chemistry Department (ACD), Leibniz Institute for Tropospheric Research (TROPOS), 04318 Leipzig, Germany
| | - Erik H Hoffmann
- Atmospheric Chemistry Department (ACD), Leibniz Institute for Tropospheric Research (TROPOS), 04318 Leipzig, Germany
| | - Hartmut Herrmann
- Atmospheric Chemistry Department (ACD), Leibniz Institute for Tropospheric Research (TROPOS), 04318 Leipzig, Germany
| | - John D Crounse
- Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA
| | - Paul O Wennberg
- Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA.,Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA 91125, USA
| | - Henrik G Kjaergaard
- Department of Chemistry, University of Copenhagen, DK-2100 Copenhagen Ø, Denmark
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4
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Speak TH, Medeiros DJ, Blitz MA, Seakins PW. OH Kinetics with a Range of Nitrogen-Containing Compounds: N-Methylformamide, t-Butylamine, and N-Methyl-propane Diamine. J Phys Chem A 2021; 125:10439-10450. [PMID: 34818012 DOI: 10.1021/acs.jpca.1c08104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Emissions of amines and amides to the atmosphere are significant from both anthropogenic and natural sources, and amides can be formed as secondary pollutants. Relatively little kinetic data exist on overall rate coefficients with OH, the most important tropospheric oxidant, and even less on site-specific data which control the product distribution. Structure-activity relationships (SARs) can be used to estimate both quantities. Rate coefficients for the reaction of OH with t-butylamine (k1), N-methyl-1,3-propanediamine (k2), and N-methylformamide (k3) have been measured using laser flash photolysis coupled with laser-induced fluorescence. Proton-transfer-reaction mass spectrometry (PTR-MS) has been used to ensure the reliable introduction of these low-vapor pressure N-containing compounds and to give qualitative information on products. Supporting ab initio calculations are presented for the t-butylamine system. The following rate coefficients have been determined: k1,298K= (1.66 ± 0.20) × 10-11 cm3 molecule-1 s-1, k(T)1 = 1.65 × 10-11 (T/300)-0.69 cm3 molecule-1 s-1, k2,293K = (7.09 ± 0.22) × 10-11 cm3 molecule-1 s-1, and k3,298K = (1.03 ± 0.23) × 10-11 cm3 molecule-1 s-1. For OH + t-butylamine, ab initio calculations predict that the fraction of N-H abstraction is 0.87. The dominance of this channel was qualitatively confirmed using end-product analysis. The reaction of OH with N-methyl-1,3-propanediamine also had a negative temperature dependence, but the reduction in the rate coefficient was complicated by reagent loss. The measured rate coefficient for reaction 3 is in good agreement with a recent relative rate study. The results of this work and the literature data are compared with the recent SAR estimates for the reaction of OH with reduced nitrogen compounds. Although the SARs reproduce the overall rate coefficients for reactions, site-specific agreement with this work and other literature studies is less strong.
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Affiliation(s)
- Thomas H Speak
- School of Chemistry, University of Leeds, Leeds LS2 9JT, U.K
| | | | - Mark A Blitz
- School of Chemistry, University of Leeds, Leeds LS2 9JT, U.K.,National Centre for Atmospheric Science (NCAS), University of Leeds, Leeds LS2 9JT, U.K
| | - Paul W Seakins
- School of Chemistry, University of Leeds, Leeds LS2 9JT, U.K
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Zhao M, Ning H, Shang Y, Shi J. Accurate reaction barriers and rate constants of H-abstraction from primary, secondary, and tertiary amines by H atom determined with the isodesmic reaction method. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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6
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Berndt T, Møller KH, Herrmann H, Kjaergaard HG. Trimethylamine Outruns Terpenes and Aromatics in Atmospheric Autoxidation. J Phys Chem A 2021; 125:4454-4466. [PMID: 33978422 DOI: 10.1021/acs.jpca.1c02465] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Autoxidation in the atmosphere has been realized in the last decade as an important process that forms highly oxidized products relevant for the formation of secondary organic aerosol and likely with detrimental human health effects. It is experimentally shown that the OH radical-initiated oxidation of trimethylamine, the most highly emitted amine in the atmosphere, proceeds via rapid autoxidation steps dominating its atmospheric oxidation process. All three methyl groups are functionalized within a timescale of 10 s following the reaction with OH radicals leading to highly oxidized products. The exceptionally large density of functional groups in the oxidized products is expected to define their chemical properties. A detailed reaction mechanism based on theoretical calculations is able to describe the experimental findings. The comparison with results of the reinvestigated OH radical- and ozone-initiated autoxidation of a series of terpenes and aromatics reveals the trimethylamine process as the most efficient one discovered up to now for atmospheric conditions.
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Affiliation(s)
- Torsten Berndt
- Atmospheric Chemistry Department (ACD), Leibniz Institute for Tropospheric Research (TROPOS), Permoserstraße 15, Leipzig 04318, Germany
| | - Kristian H Møller
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, Copenhagen Ø DK-2100, Denmark
| | - Hartmut Herrmann
- Atmospheric Chemistry Department (ACD), Leibniz Institute for Tropospheric Research (TROPOS), Permoserstraße 15, Leipzig 04318, Germany
| | - Henrik G Kjaergaard
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, Copenhagen Ø DK-2100, Denmark
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7
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Møller KH, Berndt T, Kjaergaard HG. Atmospheric Autoxidation of Amines. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:11087-11099. [PMID: 32786344 DOI: 10.1021/acs.est.0c03937] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Autoxidation has been acknowledged as a major oxidation pathway in a broad range of atmospherically important compounds including isoprene, monoterpenes, and very recently, dimethyl sulfide. Here, we present a high-level theoretical multiconformer transition-state theory study of the atmospheric autoxidation in amines exemplified by the atmospherically important trimethylamine (TMA) and dimethylamine and generalized by the study of the larger diethylamine. Overall, we find that the initial hydrogen shift reactions have rate coefficients greater than 0.1 s-1 and autoxidation is thus an important atmospheric pathway for amines. This autoxidation efficiently leads to the formation of hydroperoxy amides, a new type of atmospheric nitrogen-containing compounds, and for TMA, we experimentally confirm this. The conversion of amines to hydroperoxy amides may have important implications for nucleation and growth of atmospheric secondary organic aerosols and atmospheric OH recycling.
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Affiliation(s)
- Kristian H Møller
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Torsten Berndt
- Atmospheric Chemistry Department (ACD), Leibniz Institute for Tropospheric Research (TROPOS), Permoserstraße 15, 04318 Leipzig, Germany
| | - Henrik G Kjaergaard
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
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8
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Ma F, Xie HB, Elm J, Shen J, Chen J, Vehkamäki H. Piperazine Enhancing Sulfuric Acid-Based New Particle Formation: Implications for the Atmospheric Fate of Piperazine. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:8785-8795. [PMID: 31287292 DOI: 10.1021/acs.est.9b02117] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Piperazine (PZ), a cyclic diamine, is one of 160 detected atmospheric amines and an alternative solvent to the widely used monoethanolamine in post-combustion CO2 capture. Participating in H2SO4 (sulfuric acid, SA)-based new particle formation (NPF) could be an important removal pathway for PZ. Here, we employed quantum chemical calculations and kinetics modeling to evaluate the enhancing potential of PZ on SA-based NPF by examining the formation of PZ-SA clusters. The results indicate that PZ behaves more like a monoamine in stabilizing SA and can enhance SA-based NPF at the parts per trillion (ppt) level. The enhancing potential of PZ is less than that of the chainlike diamine putrescine and greater than that of dimethylamine, which is one of the strongest enhancing agents confirmed by ambient observations and experiments. After the initial formation of the (PZ)1(SA)1 cluster, the cluster mainly grows by gradual addition of SA or PZ monomer, followed by addition of (PZ)1(SA)1 cluster. We find that the ratio of PZ removal by NPF to that by the combination of NPF and oxidations is 0.5-0.97 at 278.15 K. As a result, we conclude that participation in the NPF pathway could significantly alter the environmental impact of PZ compared to only considering oxidation pathways.
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Affiliation(s)
- Fangfang Ma
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Hong-Bin Xie
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Jonas Elm
- Department of Chemistry and iClimate , Aarhus University , Langelandsgade 140 , DK- 8000 Aarhus C , Denmark
| | - Jiewen Shen
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Jingwen Chen
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Hanna Vehkamäki
- Institute for Atmospheric and Earth System Research/Physics , University of Helsinki , P.O. Box 64, Gustaf Hällströmin katu 2a , FI-00014 Helsinki , Finland
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9
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Shang Y, Ning H, Shi J, Wang H, Luo SN. Chemical kinetics of H-abstractions from dimethyl amine by H, CH3, OH, and HO2 radicals with multi-structural torsional anharmonicity. Phys Chem Chem Phys 2019; 21:12685-12696. [DOI: 10.1039/c9cp00709a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dimethyl amine (DMA) is identified as a promising nitrogen-containing fuel candidate.
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Affiliation(s)
- Yanlei Shang
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education, and Institute of Materials Dynamics
- Southwest Jiaotong University
- Chengdu
- P. R. China
| | - Hongbo Ning
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education, and Institute of Materials Dynamics
- Southwest Jiaotong University
- Chengdu
- P. R. China
| | - Jinchun Shi
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education, and Institute of Materials Dynamics
- Southwest Jiaotong University
- Chengdu
- P. R. China
| | - Hongyan Wang
- School of Physical Science and Technology, Southwest Jiaotong University
- Chengdu
- P. R. China
| | - Sheng-Nian Luo
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education, and Institute of Materials Dynamics
- Southwest Jiaotong University
- Chengdu
- P. R. China
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10
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Aquilanti V, Coutinho ND, Carvalho-Silva VH. Kinetics of low-temperature transitions and a reaction rate theory from non-equilibrium distributions. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2017; 375:rsta.2016.0201. [PMID: 28320904 PMCID: PMC5360900 DOI: 10.1098/rsta.2016.0201] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/14/2016] [Indexed: 05/14/2023]
Abstract
This article surveys the empirical information which originated both by laboratory experiments and by computational simulations, and expands previous understanding of the rates of chemical processes in the low-temperature range, where deviations from linearity of Arrhenius plots were revealed. The phenomenological two-parameter Arrhenius equation requires improvement for applications where interpolation or extrapolations are demanded in various areas of modern science. Based on Tolman's theorem, the dependence of the reciprocal of the apparent activation energy as a function of reciprocal absolute temperature permits the introduction of a deviation parameter d covering uniformly a variety of rate processes, from those where quantum mechanical tunnelling is significant and d < 0, to those where d > 0, corresponding to the Pareto-Tsallis statistical weights: these generalize the Boltzmann-Gibbs weight, which is recovered for d = 0. It is shown here how the weights arise, relaxing the thermodynamic equilibrium limit, either for a binomial distribution if d > 0 or for a negative binomial distribution if d < 0, formally corresponding to Fermion-like or Boson-like statistics, respectively. The current status of the phenomenology is illustrated emphasizing case studies; specifically (i) the super-Arrhenius kinetics, where transport phenomena accelerate processes as the temperature increases; (ii) the sub-Arrhenius kinetics, where quantum mechanical tunnelling propitiates low-temperature reactivity; (iii) the anti-Arrhenius kinetics, where processes with no energetic obstacles are rate-limited by molecular reorientation requirements. Particular attention is given for case (i) to the treatment of diffusion and viscosity, for case (ii) to formulation of a transition rate theory for chemical kinetics including quantum mechanical tunnelling, and for case (iii) to the stereodirectional specificity of the dynamics of reactions strongly hindered by the increase of temperature.This article is part of the themed issue 'Theoretical and computational studies of non-equilibrium and non-statistical dynamics in the gas phase, in the condensed phase and at interfaces'.
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Affiliation(s)
- Vincenzo Aquilanti
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
- Instituto de Física, Universidade Federal da Bahia, 40210 Salvador, Brazil
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche, 00016 Rome, Italy
| | - Nayara Dantas Coutinho
- Instituto de Química, Universidade de Brasília, Caixa Postal 4478, 70904-970 Brasília, Brazil
| | - Valter Henrique Carvalho-Silva
- Grupo de Química Teórica e Estrutural de Anápolis, Campus de Ciências Exatas e Tecnológicas, Universidade Estadual de Goiás, CP 459, 75001-970 Anápolis, GO, Brazil
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11
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Barnes I, Wiesen P, Gallus M. Rate Coefficients for the Reactions of OH Radicals with a Series of Alkyl-Substituted Amines. J Phys Chem A 2016; 120:8823-8829. [PMID: 27755865 DOI: 10.1021/acs.jpca.6b08713] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Rate coefficients have been determined at (298 ± 2) K and atmospheric pressure for the reaction of OH radicals with two primary monoalkyl-, one secondary dialkyl-, and five tertiary trialkyl-substituted amines in a large volume photoreactor by the relative kinetic technique. The following rate coefficients (in cm3 molecule-1 s-1 units) have been obtained: (1) 1,2-dimethylpropylamine, CH3C(CH3)HC(CH3)H)NH2, (5.08 ± 1.02) × 10-11; (2) tert-amylamine (tert-pentylamine), CH3CH2C(CH3)2NH2, (0.86 ± 0.17) × 10-11; (3) diethylamine, (CH3CH2)2NH, (7.36 ± 1.47) × 10-11; (4) N,N-dimethylethylamine, (CH3)2NCH2CH3, (7.37 ± 1.47) × 10-11; (5) N,N-dimethylpropylamine, (CH3)2NCH2CH2CH3, (10.97 ± 1.78) × 10-11; (6) N,N-dimethylisopropylamine, (CH3)2NCH(CH3)2, (9.79 ± 1.75) × 10-11; (7) N,N-diethylmethylamine, (CH3CH2)2NCH3, (8.92 ± 1.54) × 10-11; (8) triethylamine, (CH3CH2)3N, (10.86 ± 1.88) × 10-11. The quoted errors are the 2σ deviations from least-squares linear analysis of the kinetic data plus a contribution to take into account uncertainties associated with the reference compounds. With the exception of diethylamine, this study represents the first determinations of the rate coefficients for reaction of the compounds with OH radicals. The results are compared with rate coefficients available in the literature for smaller alkyl-substituted amines and also the values predicted for the compounds investigated by using a structure activity relationship (SAR). With the exception of tert-amylamine, the SAR-predicted OH rate coefficients are in good agreement with the experimental values.
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Affiliation(s)
- Ian Barnes
- Fakultät Mathematik und Naturwissenschaften, Physikalische & Theoretische Chemie, Bergische Universität Wuppertal , Gauss Strasse 20, 42119 Wuppertal, Germany
| | - Peter Wiesen
- Fakultät Mathematik und Naturwissenschaften, Physikalische & Theoretische Chemie, Bergische Universität Wuppertal , Gauss Strasse 20, 42119 Wuppertal, Germany
| | - Michael Gallus
- Fakultät Mathematik und Naturwissenschaften, Physikalische & Theoretische Chemie, Bergische Universität Wuppertal , Gauss Strasse 20, 42119 Wuppertal, Germany
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12
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Borduas N, Abbatt JPD, Murphy JG, So S, da Silva G. Gas-Phase Mechanisms of the Reactions of Reduced Organic Nitrogen Compounds with OH Radicals. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:11723-11734. [PMID: 27690404 DOI: 10.1021/acs.est.6b03797] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Research on the fate of reduced organic nitrogen compounds in the atmosphere has gained momentum since the identification of their crucial role in particle nucleation and the scale up of carbon capture and storage technology which employs amine-based solvents. Reduced organic nitrogen compounds have strikingly different lifetimes against OH radicals, from hours for amines to days for amides to years for isocyanates, highlighting unique functional group reactivity. In this work, we use ab initio methods to investigate the gas-phase mechanisms governing the reactions of amines, amides, isocyanates and carbamates with OH radicals. We determine that N-H abstraction is only a viable mechanistic pathway for amines and we identify a reactive pathway in amides, the formyl C-H abstraction, not currently considered in structure-activity relationship (SAR) models. We then use our acquired mechanistic knowledge and tabulated literature experimental rate coefficients to calculate SAR factors for reduced organic nitrogen compounds. These proposed SAR factors are an improvement over existing SAR models because they predict the experimental rate coefficients of amines, amides, isocyanates, isothiocyanates, carbamates and thiocarbamates with OH radicals within a factor of 2, but more importantly because they are based on a sound fundamental mechanistic understanding of their reactivity.
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Affiliation(s)
- Nadine Borduas
- Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Jonathan P D Abbatt
- Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Jennifer G Murphy
- Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Sui So
- Chemical and Biomolecular Engineering, University of Melbourne , Victoria 3010, Australia
| | - Gabriel da Silva
- Chemical and Biomolecular Engineering, University of Melbourne , Victoria 3010, Australia
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13
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Butkovskaya NI, Setser DW. Branching Ratios and Vibrational Distributions in Water-Forming Reactions of OH and OD Radicals with Methylamines. J Phys Chem A 2016; 120:6698-711. [PMID: 27504785 DOI: 10.1021/acs.jpca.6b06411] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reactions of OH and OD radicals with (CH3)3N, (CH3)2NH, and CH3NH2 were studied by Fourier transform infrared emission spectroscopy (FTIR) of the water product molecules from a fast-flow reactor at 298 K. The rate constants (4.4 ± 0.5) × 10(-11), (5.2 ± 0.8) × 10(-11), and (2.0 ± 0.4) × 10(-11) cm(3) molecule(-1) s(-1) were determined for OD + (CH3)3N, (CH3)2NH, and CH3NH2, respectively, by comparing the HOD emission intensities to the HOD intensity from the OD reaction with H2S. Abstraction from the nitrogen site competes with abstraction from the methyl group, as obtained from an analysis of the HOD and D2O emission intensities from the OD reactions with the deuterated reactants, (CD3)2NH and CD3NH2. After adjustment for the hydrogen-deuterium kinetic isotope effect, the product branching fractions of the hydrogen abstraction from the nitrogen for di- and monomethylamine were found to be 0.34 ± 0.04 and 0.26 ± 0.05, respectively. Vibrational distributions of the H2O, HOD, and D2O molecules are typical for direct hydrogen atom abstraction from polar molecules, even though activation energies are negative because of the formation of pre-transition-state complexes. Comparison is made to the reactions of hydroxyl radicals with ammonia and with other compounds with primary C-H bonds to discuss specific features of disposal of energy to water product.
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Affiliation(s)
- N I Butkovskaya
- Semenov Institute of Chemical Physics, Russian Academy of Sciences , 119991 Moscow, Russian Federation
| | - D W Setser
- Department of Chemistry, Kansas State University , Manhattan, Kansas 66506, United States
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14
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Galano A, Alvarez-Idaboy JR. Branching Ratios of Aliphatic Amines + OH Gas-Phase Reactions: A Variational Transition-State Theory Study. J Chem Theory Comput 2015; 4:322-7. [PMID: 26620664 DOI: 10.1021/ct7002786] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A theoretical study on the mechanism of the OH + aliphatic amines reactions is presented. Geometry optimization and frequencies calculations have been performed at the BHandHLYP/6-311++G(2d,2p) level of theory for all stationary points. Energy values have been improved by single-point calculations at the above geometries using CCSD(T) and the same basis set. All the possible hydrogen abstraction channels have been modeled, involving the rupture of C-H and N-H bonds. It was found that as the temperature decreases the contributions of the channels involving NH sites to the overall reaction also decrease, suggesting that for upper layers in the troposphere these channels become less important. Their percentage contributions to the overall reaction, at 298 K, were found to be about 20%, 2%, and 48% for methylamine, ethlylamine, and dimethylamine, respectively.
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Affiliation(s)
- Annia Galano
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Iztapalapa, C. P. 09340 México D. F., México, and Facultad de Química, Departamento de Física y Química Teórica, Universidad Nacional Autónoma de México, México DF 04510, México
| | - J Raul Alvarez-Idaboy
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Iztapalapa, C. P. 09340 México D. F., México, and Facultad de Química, Departamento de Física y Química Teórica, Universidad Nacional Autónoma de México, México DF 04510, México
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15
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Louie MK, Francisco JS, Verdicchio M, Klippenstein SJ, Sinha A. Dimethylamine Addition to Formaldehyde Catalyzed by a Single Water Molecule: A Facile Route for Atmospheric Carbinolamine Formation and Potential Promoter of Aerosol Growth. J Phys Chem A 2015; 120:1358-68. [DOI: 10.1021/acs.jpca.5b04887] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Matthew K. Louie
- Department
of Chemistry and Biochemistry, University of California−San Diego, La Jolla, California 92093-0314, United States
| | - Joseph S. Francisco
- Department
of Chemistry, Purdue University, West Lafayette, Indiana 47907-2084, United States
| | - Marco Verdicchio
- Argonne National
Laboratory, Chemical Sciences and Engineering Division, Argonne, Illinois 60439-4837, United States
| | - Stephen J. Klippenstein
- Argonne National
Laboratory, Chemical Sciences and Engineering Division, Argonne, Illinois 60439-4837, United States
| | - Amitabha Sinha
- Department
of Chemistry and Biochemistry, University of California−San Diego, La Jolla, California 92093-0314, United States
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16
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Onel L, Blitz MA, Breen J, Rickard AR, Seakins PW. Branching ratios for the reactions of OH with ethanol amines used in carbon capture and the potential impact on carcinogen formation in the emission plume from a carbon capture plant. Phys Chem Chem Phys 2015; 17:25342-53. [DOI: 10.1039/c5cp04083c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Branching ratios for the OH reaction with ethanol amines and potential risk of carcinogenic formation in the carbon capture plume.
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Affiliation(s)
- L. Onel
- School of Chemistry
- University of Leeds
- Leeds
- UK
| | - M. A. Blitz
- School of Chemistry
- University of Leeds
- Leeds
- UK
- National Centre for Atmospheric Science (NCAS)
| | - J. Breen
- School of Chemistry
- University of Leeds
- Leeds
- UK
| | - A. R. Rickard
- Wolfson Atmospheric Chemistry Laboratories
- Department of Chemistry
- University of York
- York
- UK
| | - P. W. Seakins
- School of Chemistry
- University of Leeds
- Leeds
- UK
- National Centre for Atmospheric Science (NCAS)
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17
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Affiliation(s)
- Sijie Li
- Department of Mechanical Engineering; Stanford University; Stanford CA 94305
| | - David F. Davidson
- Department of Mechanical Engineering; Stanford University; Stanford CA 94305
| | - Ronald K. Hanson
- Department of Mechanical Engineering; Stanford University; Stanford CA 94305
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18
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Onel L, Blitz M, Dryden M, Thonger L, Seakins P. Branching ratios in reactions of OH radicals with methylamine, dimethylamine, and ethylamine. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014; 48:9935-9942. [PMID: 25072999 DOI: 10.1021/es502398r] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The branching ratios for the reaction of the OH radical with the primary and secondary alkylamines: methylamine (MA), dimethylamine (DMA), and ethylamine (EA), have been determined using the technique of pulsed laser photolysis-laser-induced fluorescence. Titration of the carbon-centered radical, formed following the initial OH abstraction, with oxygen to give HO2 and an imine, followed by conversion of HO2 to OH by reaction with NO, resulted in biexponential OH decay traces on a millisecond time scale. Analysis of the biexponential curves gave the HO2 yield, which equaled the branching ratio for abstraction at αC-H position, r(αC-H). The technique was validated by reproducing known branching ratios for OH abstraction for methanol and ethanol. For the amines studied in this work (all at 298 K): r(αC-H,MA) = 0.76 ± 0.08, r(αC-H,DMA) = 0.59 ± 0.07, and r(αC-H,EA) = 0.49 ± 0.06 where the errors are a combination in quadrature of statistical errors at the 2σ level and an estimated 10% systematic error. The branching ratios r(αC-H) for OH reacting with (CH3)2NH and CH3CH2NH2 are in agreement with those obtained for the OD reaction with (CH3)2ND (d-DMA) and CH3CH2ND2 (d-EA): r(αC-H,d-DMA) = 0.71 ± 0.12 and r(αC-H,d-EA) = 0.54 ± 0.07. A master equation analysis (using the MESMER package) based on potential energy surfaces from G4 theory was used to demonstrate that the experimental determinations are unaffected by formation of stabilized peroxy radicals and to estimate atmospheric pressure yields. The branching ratio for imine formation through the reaction of O2 with α carbon-centered radicals at 1 atm of N2 are estimated as r(CH2NH2) = 0.79 ± 0.15, r(CH2NHCH3) = 0.72 ± 0.19, and r(CH3CHNH2) = 0.50 ± 0.18. The implications of this work on the potential formation of nitrosamines and nitramines are briefly discussed.
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Affiliation(s)
- Lavinia Onel
- School of Chemistry, University of Leeds , Leeds, LS2 9JT, U.K
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19
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Maguta MM, Aursnes M, Bunkan AJC, Edelen K, Mikoviny T, Nielsen CJ, Stenstrøm Y, Tang Y, Wisthaler A. Atmospheric Fate of Nitramines: An Experimental and Theoretical Study of the OH Reactions with CH3NHNO2 and (CH3)2NNO2. J Phys Chem A 2014; 118:3450-62. [DOI: 10.1021/jp500305w] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mihayo Musabila Maguta
- Centre
for Theoretical and Computational Chemistry, Department of Chemistry, University of Oslo, P.
O. Box 1033, Blindern, 0315 Oslo, Norway
| | - Marius Aursnes
- Norwegian
University of Life Sciences, IKBM, P.O. Box 5003, NO-1432 Aas, Norway
| | - Arne Joakim Coldevin Bunkan
- Centre
for Theoretical and Computational Chemistry, Department of Chemistry, University of Oslo, P.
O. Box 1033, Blindern, 0315 Oslo, Norway
| | - Katie Edelen
- Centre
for Theoretical and Computational Chemistry, Department of Chemistry, University of Oslo, P.
O. Box 1033, Blindern, 0315 Oslo, Norway
| | - Tomáš Mikoviny
- Centre
for Theoretical and Computational Chemistry, Department of Chemistry, University of Oslo, P.
O. Box 1033, Blindern, 0315 Oslo, Norway
| | - Claus Jørgen Nielsen
- Centre
for Theoretical and Computational Chemistry, Department of Chemistry, University of Oslo, P.
O. Box 1033, Blindern, 0315 Oslo, Norway
| | - Yngve Stenstrøm
- Norwegian
University of Life Sciences, IKBM, P.O. Box 5003, NO-1432 Aas, Norway
| | - Yizhen Tang
- School
of Environmental and Municipal Engineering, Qingdao Technological University, Fushun Road 11, 266033 Qingdao, Shandong P.R. China
| | - Armin Wisthaler
- Centre
for Theoretical and Computational Chemistry, Department of Chemistry, University of Oslo, P.
O. Box 1033, Blindern, 0315 Oslo, Norway
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20
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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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21
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Nishino N, Arquero KD, Dawson ML, Finlayson-Pitts BJ. Infrared studies of the reaction of methanesulfonic acid with trimethylamine on surfaces. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 48:323-330. [PMID: 24304088 DOI: 10.1021/es403845b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Organosulfur compounds generated from a variety of biological as well as anthropogenic sources are oxidized in air to form sulfuric acid and methanesulfonic acid (MSA). Both of these acids formed initially in the gas phase react with ammonia and amines in air to form and grow new particles, which is important for visibility, human health and climate. A competing sink is deposition on surfaces in the boundary layer. However, relatively little is known about reactions after they deposit on surfaces. We report here diffuse reflectance infrared Fourier transform spectrometry (DRIFTS) studies of the reaction of MSA with trimethylamine (TMA) on a silicon powder at atmospheric pressure in synthetic air and at room temperature, either in the absence or in the presence of water vapor. In both cases, DRIFTS spectra of the product surface species are essentially the same as the transmission spectrum obtained for trimethylaminium methanesulfonate, indicating the formation of the salt on the surface with a lower limit to the reaction probability of γ > 10(-6). To the best of our knowledge, this is the first infrared study to demonstrate this chemistry from the heterogeneous reaction of MSA with an amine on a surface. This heterogeneous chemistry appears to be sufficiently fast that it could impact measurements of gas-phase amines through reactions with surface-adsorbed acids on sampling lines and inlets. It could also represent an additional sink for amines in the boundary layer, especially at night when the gas-phase reactions of amines with OH radical and ozone are minimized.
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Affiliation(s)
- Noriko Nishino
- Department of Chemistry, University of California , Irvine, California, 92697-2025, United States
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22
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Onel L, Thonger L, Blitz MA, Seakins PW, Bunkan AJC, Solimannejad M, Nielsen CJ. Gas-Phase Reactions of OH with Methyl Amines in the Presence or Absence of Molecular Oxygen. An Experimental and Theoretical Study. J Phys Chem A 2013; 117:10736-45. [DOI: 10.1021/jp406522z] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- L. Onel
- School of Chemistry, University of Leeds, Leeds, LS2 9JT, United Kingdom
| | - L. Thonger
- School of Chemistry, University of Leeds, Leeds, LS2 9JT, United Kingdom
| | - M. A. Blitz
- School of Chemistry, University of Leeds, Leeds, LS2 9JT, United Kingdom
| | - P. W. Seakins
- School of Chemistry, University of Leeds, Leeds, LS2 9JT, United Kingdom
| | - A. J. C. Bunkan
- CTCC,
Department of Chemistry, University of Oslo, P.O.Box 1033 Blindern, 0315 Oslo, Norway
| | - M. Solimannejad
- CTCC,
Department of Chemistry, University of Oslo, P.O.Box 1033 Blindern, 0315 Oslo, Norway
| | - C. J. Nielsen
- CTCC,
Department of Chemistry, University of Oslo, P.O.Box 1033 Blindern, 0315 Oslo, Norway
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23
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Onel L, Blitz MA, Seakins PW. Direct Determination of the Rate Coefficient for the Reaction of OH Radicals with Monoethanol Amine (MEA) from 296 to 510 K. J Phys Chem Lett 2012; 3:853-856. [PMID: 26286410 DOI: 10.1021/jz300200c] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Monoethanol amine (H2NCH2CH2OH, MEA) has been proposed for large-scale use in carbon capture and storage. We present the first absolute, temperature-dependent determination of the rate coefficient for the reaction of OH with MEA using laser flash photolysis for OH generation, monitoring OH removal by laser-induced fluorescence. The room-temperature rate coefficient is determined to be (7.61 ± 0.76) × 10(-11) cm(3) molecule(-1) s(-1), and the rate coefficient decreases by about 40% by 510 K. The temperature dependence of the rate coefficient is given by k1= (7.73 ± 0.24) × 10(-11)(T/295)(-(0.79±0.11)) cm(3) molecule(-1) s(-1). The high rate coefficient shows that gas-phase processing in the atmosphere will be competitive with uptake onto aerosols.
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Affiliation(s)
- L Onel
- School of Chemistry, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - M A Blitz
- School of Chemistry, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - P W Seakins
- School of Chemistry, University of Leeds, Leeds LS2 9JT, United Kingdom
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24
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Tang Y, Hanrath M, Nielsen CJ. Do primary nitrosamines form and exist in the gas phase? A computational study of CH3NHNO and (CH3)2NNO. Phys Chem Chem Phys 2012; 14:16365-70. [DOI: 10.1039/c2cp42219k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Nielsen CJ, Herrmann H, Weller C. Atmospheric chemistry and environmental impact of the use of amines in carbon capture and storage (CCS). Chem Soc Rev 2012; 41:6684-704. [DOI: 10.1039/c2cs35059a] [Citation(s) in RCA: 234] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Hanson DR, McMurry PH, Jiang J, Tanner D, Huey LG. Ambient pressure proton transfer mass spectrometry: detection of amines and ammonia. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2011; 45:8881-8888. [PMID: 21892835 DOI: 10.1021/es201819a] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
An instrument to detect gaseous amines and ammonia is described, and representative data from an urban site and a laboratory setting are presented. The instrument, an Ambient pressure Proton transfer Mass Spectrometer (AmPMS), consists of a chemical ionization and drift region at atmospheric pressure coupled to a standard quadrupole mass spectrometer. Calibrations show that AmPMS sensitivity is good for amines, and AmPMS backgrounds were suitably determined by diverting sampled air through a catalytic converter. In urban air at a site in Atlanta, amines were detected at subpptv levels for methyl and dimethyl amine which were generally at a low abundance of <1 and ∼3 pptv, respectively. Trimethyl amine (or isomers) was on average about 4 pptv in the morning and increased to 15 pptv in the afternoon, while triethyl amine (or isomers or amides) increased to 25 pptv on average in the late afternoon. The background levels for the 4 and 5 carbon amines and ammonia were high, and data are very limited for these species. Improvements in detecting amines and ammonia from a smog chamber were evident due to improvements in AmPMS background determination; notably dimethyl amine and its OH oxidation products were followed along with impurity ammonia and other species. Future work will focus on accurate calibration standards and on improving the sample gas inlet.
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Affiliation(s)
- D R Hanson
- Chemistry Department, Augsburg College, Minneapolis, Minnesota 55454, USA.
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27
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Tuazon EC, Martin P, Aschmann SM, Arey J, Atkinson R. Kinetics of the reactions of OH radicals with 2-methoxy-6-(trifluoromethyl)pyridine, diethylamine, and 1,1,3,3,3-pentamethyldisiloxan-1-ol at 298 ± 2 K. INT J CHEM KINET 2011. [DOI: 10.1002/kin.20594] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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28
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Cooney R, Hatch‐Pigott V, Ross P, Ramseyer J. CarcinogenicN‐nitrosamine formation: A requirement for nitric oxide. ACTA ACUST UNITED AC 2008. [DOI: 10.1080/10934529209375761] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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29
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Solignac G, Mellouki A, Le Bras G, Barnes I, Benter T. Kinetics of the OH and Cl reactions with N-methylformamide, N,N-dimethylformamide and N,N-dimethylacetamide. J Photochem Photobiol A Chem 2005. [DOI: 10.1016/j.jphotochem.2005.07.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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OH hydrogen abstraction reactions from alanine and glycine: A quantum mechanical approach. J Comput Chem 2001. [DOI: 10.1002/jcc.1073] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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31
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Vaghjiani GL. Kinetics of OH reactions with N2H4, CH3NHNH2 and (CH3)2NNH2 in the gas phase. INT J CHEM KINET 2001. [DOI: 10.1002/kin.1029] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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32
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Carl SA, Crowley JN. Sequential Two (Blue) Photon Absorption by NO2 in the Presence of H2 as a Source of OH in Pulsed Photolysis Kinetic Studies: Rate Constants for Reaction of OH with CH3NH2, (CH3)2NH, (CH3)3N, and C2H5NH2 at 295 K. J Phys Chem A 1998. [DOI: 10.1021/jp9821937] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- S. A. Carl
- Division of Atmospheric Chemistry, Max-Planck-Institut für Chemie, Postfach 3060, D-55020 Mainz, Germany
| | - J. N. Crowley
- Division of Atmospheric Chemistry, Max-Planck-Institut für Chemie, Postfach 3060, D-55020 Mainz, Germany
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33
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Anderson LG, Stephens RD. Kinetics of the reaction of hydroxyl radicals with 2-(dimethylamino)ethanol from 234-364 K. INT J CHEM KINET 1988. [DOI: 10.1002/kin.550200203] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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34
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Tully FP, Droege AT. Kinetics of the reactions of the hydroxyl radical with dimethyl ether and diethyl ether. INT J CHEM KINET 1987. [DOI: 10.1002/kin.550190308] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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35
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36
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Lindley CR, Calvert JG, Shaw JH. Rate studies of the reactions of the (CH3)2N radical with O2, NO, and NO2. Chem Phys Lett 1979. [DOI: 10.1016/0009-2614(79)87105-5] [Citation(s) in RCA: 57] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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37
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Slagle IR, Dudich JF, Gutman D. Direct identification of reactive routes in the reaction of oxygen atoms with dimethylamine. Chem Phys Lett 1979. [DOI: 10.1016/0009-2614(79)87187-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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38
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Atkinson R, Pitts JN. Kinetics of the reactions of the OH radical with HCHO and CH3CHO over the temperature range 299–426°K. J Chem Phys 1978. [DOI: 10.1063/1.436215] [Citation(s) in RCA: 72] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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