1
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Chan YC, Nesbitt DJ. High-resolution infrared spectroscopy of jet cooled cyclobutyl in the α-CH stretch region: large-amplitude puckering dynamics in a 4-membered ring radical. Phys Chem Chem Phys 2024; 26:3081-3091. [PMID: 38180446 DOI: 10.1039/d3cp04812h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
Gas-phase cyclobutyl radical (c-C4H7) is generated at a rotational temperature of Trot = 26(1) K in a slit-jet discharge mixture of 70% Ne/30% He and 0.5-0.6% cyclobromobutane (c-C4H7Br). A fully rovibrationally resolved absorption spectrum of the α-CH stretch fundamental band between 3062.9 cm-1 to 3075.7 cm-1 is obtained and analyzed, yielding first precision structural and dynamical information for this novel radical species. The α-CH stretch band origin is determined to be 3068.7887(4) cm-1, which implies only a modest (≈0.8 cm-1) blue shift from rotationally unresolved infrared spectroscopic studies of cyclobutyl radicals in liquid He droplets [A. R. Brown, P. R. Franke and G. E. Douberly, J. Phys. Chem. A, 2017, 121, 7576-7587]. Of particular dynamical interest, a one-dimensional potential energy surface with respect to the ring puckering coordinate is computed at CCSD(T)/ANO2 level of theory and reveals a double minimum Cs puckered geometry, separated by an exceedingly shallow planar C2v transition state barrier (Ebarr ≈ 1 cm-1). Numerical solutions on this double minimum potential yield a zero-point energy for the ground state (Ezero-point ≈ 27 cm-1) greatly in excess of the interconversion barrier. This is indicative of highly delocalized, large amplitude motion of the four-membered ring structure, for which proper vibrationally averaging of the moment of inertia tensor reproduces the experimentally determined inertial defect remarkably well. Finally, intensity alternation in the experimental spectrum due to nuclear spin statistics upon exchange of three indistinguishable H atom pairs (IH = ½) matches Ka + Kc = even : odd = 36 : 28 predictions, implying that the unpaired electron in the radical center lies in an out-of-plane pπ orbital. Thus, high-resolution infrared spectroscopy provides first experimental confirmation of a shallow double minimum ring puckering potential with a highly delocalized ground state wave function peaked at a planar C2v transition state geometry consistent with a cyclobutyl π radical.
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Affiliation(s)
- Ya-Chu Chan
- JILA, University of Colorado Boulder and National Institute of Standards and Technology, Boulder, Colorado 80309, USA.
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, USA
| | - David J Nesbitt
- JILA, University of Colorado Boulder and National Institute of Standards and Technology, Boulder, Colorado 80309, USA.
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, USA
- Department of Physics, University of Colorado Boulder, Boulder, Colorado 80309, USA
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2
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Shao K, Sun G, Gomez M, Liu X, Zhang J. Flash pyrolysis vacuum ultraviolet photoionization mass spectrometry of cycloheptane: A study of the initial decomposition mechanism. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2023; 29:88-96. [PMID: 36471586 DOI: 10.1177/14690667221142699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Thermal decomposition of cycloheptane was studied using flash pyrolysis coupled with vacuum ultraviolet (118.2 nm) single photon ionization time-of-flight mass spectrometry at temperatures ranging from 295 K to 1380 K. C-C bond breaking of cycloheptane leading to the 1,7-heptyl diradical was considered as the initiation step. The 1,7-heptyl diradical could readily isomerize to 1-heptene and decompose into several fragments, with dissociation to •C4H9 and •C3H5 as the predominant product channel. The 1,7-heptyl diradical could undergo direct dissociation, as evidenced by the production of the C5H10 species. Quantum chemistry calculations at UCCSD(T)/cc-pVDZ//UB3LYP/cc-pVDZ level of theory on the initial reaction pathways of cycloheptane were also carried out to support the experimental observations. Other possible initiation channels, as well as some secondary reaction products, were also identified.
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Affiliation(s)
- Kuanliang Shao
- Department of Chemistry, University of California, Riverside, CA, USA
| | - Ge Sun
- Department of Chemistry, University of California, Riverside, CA, USA
| | - Mariah Gomez
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA
| | - Xinghua Liu
- College of Science, 74629Hainan University, Hainan, China
| | - Jingsong Zhang
- Department of Chemistry, University of California, Riverside, CA, USA
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3
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Novoyatlova US, Kessenikh AG, Kononchuk OV, Bazhenov SV, Fomkin AA, Kudryavtseva AA, Shorunov SV, Bermeshev MV, Manukhov IV. Genotoxic Effect of Dicyclopropanated 5-Vinyl-2-Norbornene. BIOSENSORS 2022; 13:57. [PMID: 36671892 PMCID: PMC9855359 DOI: 10.3390/bios13010057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/13/2022] [Accepted: 12/27/2022] [Indexed: 06/17/2023]
Abstract
Dicyclopropanated 5-vinyl-2-norbornene (dcpVNB) is a strained polycyclic hydrocarbon compound with a high energy content, which makes it promising for the development of propellant components based on it. In this work, the genotoxic properties of dcpVNB were studied using whole-cell lux-biosensors based on Escherichia coli and Bacillus subtilis. It was shown that the addition of dcpVNB to bacterial cells leads to the appearance of DNA damage inducing the SOS response and Dps expression with slight activation of the OxyR-mediated response to oxidative stress. The highest toxic effect of dcpVNB is detected by the following lux-biosensors: E. coli pColD-lux, E. coli pDps, B. subtilis pNK-DinC, and B. subtilis pNK-MrgA, in which the genes of bacterial luciferases are transcriptionally fused to the corresponding promoters: Pcda, Pdps, PdinC, and PmrgA. It was shown that lux-biosensors based on B. subtilis, and E. coli are almost equally sensitive to dcpVNB, which indicates the same permeability to this compound of cell wall of Gram-positive and Gram-negative bacteria. The activation of Pdps after dcpVNB addition maintains even in oxyR mutant E. coli strains, which means that the Pdps induction is only partially determined by the OxyR/S regulon. Comparison of specific stress effects caused by dcpVNB and 2-ethyl(bicyclo[2.2.1]heptane) (EBH), characterized by the absence of cyclopropanated groups, shows that structural changes in hydrocarbons could significantly change the mode of toxicity.
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Affiliation(s)
- Uliana S. Novoyatlova
- Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
| | - Andrei G. Kessenikh
- Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
- Laboratory for Microbiology, BIOTECH University, 125080 Moscow, Russia
| | - Olga V. Kononchuk
- Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
- Laboratory for Microbiology, BIOTECH University, 125080 Moscow, Russia
| | - Sergey V. Bazhenov
- Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
- Faculty of Physics, HSE University, 109028 Moscow, Russia
| | - Alexander A. Fomkin
- Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
| | - Anna A. Kudryavtseva
- Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
- Faculty of Physics, HSE University, 109028 Moscow, Russia
- Federal Research Center of Biological Systems and Agro-Technologies of RAS, 460000 Orenburg, Russia
| | - Sergey V. Shorunov
- Topchiev Institute of Petrochemical Synthesis, RAS, 119071 Moscow, Russia
| | - Maxim V. Bermeshev
- Topchiev Institute of Petrochemical Synthesis, RAS, 119071 Moscow, Russia
| | - Ilya V. Manukhov
- Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
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4
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Han J, Zhao R, Guo Y, Qu Z, Gao J. Minimal Active Space for Diradicals Using Multistate Density Functional Theory. Molecules 2022; 27:molecules27113466. [PMID: 35684406 PMCID: PMC9182067 DOI: 10.3390/molecules27113466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 05/18/2022] [Accepted: 05/20/2022] [Indexed: 11/16/2022] Open
Abstract
This work explores the electronic structure as well as the reactivity of singlet diradicals, making use of multistate density functional theory (MSDFT). In particular, we show that a minimal active space of two electrons in two orbitals is adequate to treat the relative energies of the singlet and triplet adiabatic ground state as well as the first singlet excited state in many cases. This is plausible because dynamic correlation is included in the first place in the optimization of orbitals in each determinant state via block-localized Kohn–Sham density functional theory. In addition, molecular fragment, i.e., block-localized Kohn–Sham orbitals, are optimized separately for each determinant, providing a variational diabatic representation of valence bond-like states, which are subsequently used in nonorthogonal state interactions (NOSIs). The computational procedure and its performance are illustrated on some prototypical diradical species. It is shown that NOSI calculations in MSDFT can be used to model bond dissociation and hydrogen-atom transfer reactions, employing a minimal number of configuration state functions as the basis states. For p- and s-types of diradicals, the closed-shell diradicals are found to be more reactive than the open-shell ones due to a larger diabatic coupling with the final product state. Such a diabatic representation may be useful to define reaction coordinates for electron transfer, proton transfer and coupled electron and proton transfer reactions in condensed-phase simulations.
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Affiliation(s)
- Jingting Han
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130023, China; (J.H.); (R.Z.); (Y.G.)
| | - Ruoqi Zhao
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130023, China; (J.H.); (R.Z.); (Y.G.)
- Institute of Systems and Physical Biology, Shenzhen Bay Laboratory, Shenzhen 518055, China
| | - Yujie Guo
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130023, China; (J.H.); (R.Z.); (Y.G.)
| | - Zexing Qu
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130023, China; (J.H.); (R.Z.); (Y.G.)
- Correspondence: (Z.Q.); (J.G.)
| | - Jiali Gao
- Institute of Systems and Physical Biology, Shenzhen Bay Laboratory, Shenzhen 518055, China
- Beijing (Peking) University Shenzhen Graduate School, Shenzhen 518055, China
- Department of Chemistry and Supercomputing Institute, University of Minnesota, Minneapolis, MN 55455, USA
- Correspondence: (Z.Q.); (J.G.)
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Yao X, Pang W, Li T, Shentu J, Li Z, Zhu Q, Li X. High-Pressure-Limit and Pressure-Dependent Rate Rules for Unimolecular Reactions Related to Hydroperoxy Alkyl Radicals in Normal Alkyl Cyclohexane Combustion. 1. Concerted HO 2 Elimination Reaction Class and β -Scission Reaction Class. J Phys Chem A 2021; 125:8942-8958. [PMID: 34570492 DOI: 10.1021/acs.jpca.1c01122] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reactions of the concerted HO2 elimination from alkyl peroxy radicals and the β-scission of the C-OOH bond from hydroperoxy alkyl radicals, which lead to the formation of olefins and HO2 radicals, are two important reaction classes that compete with the second O2 addition step of hydroperoxy alkyl radicals, which are responsible for the chain branching in the low-temperature oxidation of normal alkyl cycloalkanes. These two reaction classes are also believed to be responsible for the negative temperature coefficient behavior due to the formation of the relatively unreactive HO2 radical, which has the potential to inhibit ignition of normal alkyl cycloalkanes. In this work, the kinetics of the above two reaction classes in normal alkyl cycloalkanes are studied, where reactions in the concerted elimination class are divided into subclasses depending upon the types of carbons from which the H atom is eliminated and the positions of the reaction center (on the alkyl side chain or on the cycle), and the reactions in the β-scission reaction class are divided into subclasses depending upon the types of the carbons on which the radical is located and the positions of the reaction center. Energy barriers by using quantum chemical methods at the CBS-QB3 level, high-pressure-limit rate constants by using canonical transition state theory, and pressure-dependent rate constants at pressures from 0.01 to 100 atm by using Rice-Ramsberger-Kassel-Marcus/Master Equation theory are calculated for a representative set of reactions from methyl cyclohexane to n-butyl cyclohexane in each subclass, from which high-pressure-limit rate rules and pressure-dependent rate rules for each subclass are derived from the average rate constants of reactions within each subclass. A comparison of the rate constants for the reactions in the two reaction classes calculated in this work is made with the rate constants of the same reactions from available mechanisms published in the literature, where most of the rate constants are approximately estimated from analogous reactions in alkanes or small alkyl cyclohexanes, and it is found that a large difference may exist between them, indicating that the present work, which provides more accurate kinetic parameters and reasonable rate rules for these reaction classes, can be helpful to construct higher-accuracy mechanism models for normal alkyl cyclohexane combustion.
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Affiliation(s)
- Xiaoxia Yao
- College of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Weiqiang Pang
- Xi'an Modern Chemistry Research Institute, Xi'an 710065, China
| | - Tao Li
- College of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Jiangtao Shentu
- College of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Zerong Li
- College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Quan Zhu
- College of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Xiangyuan Li
- College of Chemical Engineering, Sichuan University, Chengdu 610065, PR China.,Engineering Research Center of Combustion and Cooling for Aerospace Power, Ministry of Education, Sichuan University, Chengdu, Sichuan 610065, PR China
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6
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Shao K, Liu X, Jones PJ, Sun G, Gomez M, Riser BP, Zhang J. Thermal decomposition of cyclohexane by flash pyrolysis vacuum ultraviolet photoionization time-of-flight mass spectrometry: a study on the initial unimolecular decomposition mechanism. Phys Chem Chem Phys 2021; 23:9804-9813. [PMID: 33908508 DOI: 10.1039/d1cp00459j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thermal decomposition of cyclohexane at temperatures up to 1310 K was performed using flash pyrolysis coupled with vacuum ultraviolet (118.2 nm) photoionization time-of-flight mass spectrometry. The experimental results revealed that the major initiation reaction of cyclohexane decomposition was C-C bond fission leading to the formation of 1,6-hexyl diradical. The 1,6-hexyl diradical could isomerize to 1-hexene and decompose into ˙C3H7 + ˙C3H5 and ˙C4H7 + ˙C2H5. The 1,6-hexyl diradical could also undergo direct dissociation; the C4H8 fragment via the 1,4-butyl diradical intermediate was observed, serving as evidence of the 1,6-hexyl diradical mechanism. Quantum chemistry calculations at UCCSD(T)/cc-pVDZ level of theory on the initial reaction pathways of cyclohexane were performed and found to be consistent with the experimental conclusions. Cyclohexyl radical was not observed as an initial intermediate in the pyrolysis. Benzene was produced from sequential H2 eliminations of cyclohexane at high temperatures.
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Affiliation(s)
- Kuanliang Shao
- Department of Chemistry, University of California, Riverside, California 92521, USA.
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7
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Elucidating the differences in oxidation of high-performance α- and β- diisobutylene biofuels via Synchrotron photoionization mass spectrometry. Sci Rep 2020; 10:21776. [PMID: 33311537 PMCID: PMC7733457 DOI: 10.1038/s41598-020-76462-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 10/21/2020] [Indexed: 11/09/2022] Open
Abstract
Biofuels are a promising ecologically viable and renewable alternative to petroleum fuels, with the potential to reduce net greenhouse gas emissions. However, biomass sourced fuels are often produced as blends of hydrocarbons and their oxygenates. Such blending complicates the implementation of these fuels in combustion applications. Variations in a biofuel's composition will dictate combustion properties such as auto ignition temperature, reaction delay time, and reaction pathways. A handful of novel drop-in replacement biofuels for conventional transportation fuels have recently been down selected from a list of over 10,000 potential candidates as part of the U.S. Department of Energy's (DOE) Co-Optimization of Fuels and Engines (Co-Optima) initiative. Diisobutylene (DIB) is one such high-performing hydrocarbon which can readily be produced from the dehydration and dimerization of isobutanol, produced from the fermentation of biomass-derived sugars. The two most common isomers realized, from this process, are 2,4,4-trimethyl-1-pentene (α-DIB) and 2,4,4-trimethyl-2-pentene (β-DIB). Due to a difference in olefinic bond location, the α- and β- isomer exhibit dramatically different ignition temperatures at constant pressure and equivalence ratio. This may be attributed to different fragmentation pathways enabled by allylic versus vinylic carbons. For optimal implementation of these biofuel candidates, explicit identification of the intermediates formed during the combustion of each of the isomers is needed. To investigate the combustion pathways of these molecules, tunable vacuum ultraviolet (VUV) light (in the range 8.1-11.0 eV) available at the Lawrence Berkeley National Laboratory's Advanced Light Source (ALS) has been used in conjunction with a jet stirred reactor (JSR) and time-of-flight mass spectrometry to probe intermediates formed. Relative intensity curves for intermediate mass fragments produced during this process were obtained. Several important unique intermediates were identified at the lowest observable combustion temperature with static pressure of 93,325 Pa and for 1.5 s residence time. As this relatively short residence time is just after ignition, this study is targeted at the fuels' ignition events. Ignition characteristics for both isomers were found to be strongly dependent on the kinetics of C4 and C7 fragment production and decomposition, with the tert-butyl radical as a key intermediate species. However, the ignition of α-DIB exhibited larger concentrations of C4 compounds over C7, while the reverse was true for β-DIB. These identified species will allow for enhanced engineering modeling of fuel blending and engine design.
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8
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Kessenikh A, Gnuchikh E, Bazhenov S, Bermeshev M, Pevgov V, Samoilov V, Shorunov S, Maksimov A, Yaguzhinsky L, Manukhov I. Genotoxic effect of 2,2'-bis(bicyclo[2.2.1] heptane) on bacterial cells. PLoS One 2020; 15:e0228525. [PMID: 32822344 PMCID: PMC7444485 DOI: 10.1371/journal.pone.0228525] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 08/07/2020] [Indexed: 12/30/2022] Open
Abstract
The toxic effect of strained hydrocarbon 2,2'-bis (bicyclo[2.2.1]heptane) (BBH) was studied using whole-cell bacterial lux-biosensors based on Escherichia coli cells in which luciferase genes are transcriptionally fused with stress-inducible promoters. It was shown that BBH has the genotoxic effect causing bacterial SOS response however no alkylating effect has been revealed. In addition to DNA damage, there is an oxidative effect causing the response of OxyR/S and SoxR/S regulons. The most sensitive to BBH lux-biosensor was E. coli pSoxS-lux which reacts to the appearance of superoxide anion radicals in the cell. It is assumed that the oxidation of BBH leads to the generation of reactive oxygen species, which provide the main contribution to the genotoxicity of this substance.
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Affiliation(s)
- A. Kessenikh
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow, Russia
| | - E. Gnuchikh
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow, Russia
- State Research Institute of Genetics and Selection of Industrial Microorganisms of the National Research Centre “Kurchatov Institute”, Kurchatov Genomic Center, Moscow, Russia
- NRC “Kurchatov Institute”, Moscow, Russia
| | - S. Bazhenov
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow, Russia
| | - M. Bermeshev
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, Russia
| | - V. Pevgov
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow, Russia
| | - V. Samoilov
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, Russia
| | - S. Shorunov
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, Russia
| | - A. Maksimov
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, Russia
| | - L. Yaguzhinsky
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow, Russia
- AN Belozersky Res Inst Physicochem Biol, Moscow MV Lomonosov State Univ, Moscow, Russia
| | - I. Manukhov
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow, Russia
- State Research Institute of Genetics and Selection of Industrial Microorganisms of the National Research Centre “Kurchatov Institute”, Kurchatov Genomic Center, Moscow, Russia
- * E-mail:
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9
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Dayma G, Thion S, Serinyel Z, Dagaut P. Experimental and kinetic modeling study of the oxidation of cyclopentane and methylcyclopentane at atmospheric pressure. INT J CHEM KINET 2020. [DOI: 10.1002/kin.21412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- G. Dayma
- UFR Sciences et Techniques Université d'Orléans Orléans France
- CNRS‐ICARE 1C avenue de la Recherche Scientifique Orléans France
| | - S. Thion
- CNRS‐ICARE 1C avenue de la Recherche Scientifique Orléans France
| | - Z. Serinyel
- UFR Sciences et Techniques Université d'Orléans Orléans France
- CNRS‐ICARE 1C avenue de la Recherche Scientifique Orléans France
| | - P. Dagaut
- CNRS‐ICARE 1C avenue de la Recherche Scientifique Orléans France
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10
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Stuyver T, Chen B, Zeng T, Geerlings P, De Proft F, Hoffmann R. Do Diradicals Behave Like Radicals? Chem Rev 2019; 119:11291-11351. [DOI: 10.1021/acs.chemrev.9b00260] [Citation(s) in RCA: 139] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Thijs Stuyver
- Algemene Chemie, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
| | - Bo Chen
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca New York 14853, United States
| | - Tao Zeng
- Department of Chemistry, York University, Toronto, Ontario M3J1P3, Canada
- Department of Chemistry, Carleton University, Ottawa, Ontario K1S5B6, Canada
| | - Paul Geerlings
- Algemene Chemie, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
| | - Frank De Proft
- Algemene Chemie, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
| | - Roald Hoffmann
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca New York 14853, United States
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11
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Jabeen S, Zeng Z, Altarawneh M, Gao X, Saeed A, Dlugogorski BZ. Thermal decomposition of model compound of algal biomass. INT J CHEM KINET 2019. [DOI: 10.1002/kin.21301] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sidra Jabeen
- Discipline of Chemistry and PhysicsCollege of ScienceHealthEngineering and EducationMurdoch University Murdoch Australia
| | - Zhe Zeng
- Discipline of Chemistry and PhysicsCollege of ScienceHealthEngineering and EducationMurdoch University Murdoch Australia
| | - Mohammednoor Altarawneh
- Discipline of Chemistry and PhysicsCollege of ScienceHealthEngineering and EducationMurdoch University Murdoch Australia
- Department of Chemical EngineeringAl‐Hussein Bin Talal University Ma'an Jordan
| | - Xiangpeng Gao
- Discipline of Chemistry and PhysicsCollege of ScienceHealthEngineering and EducationMurdoch University Murdoch Australia
| | - Anam Saeed
- Discipline of Chemistry and PhysicsCollege of ScienceHealthEngineering and EducationMurdoch University Murdoch Australia
| | - Bogdan Z. Dlugogorski
- Discipline of Chemistry and PhysicsCollege of ScienceHealthEngineering and EducationMurdoch University Murdoch Australia
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12
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Tu Y, Wang JB, Li XY. Theoretical study of hydrogen abstraction by small radicals from cyclohexane-carbonyl-hydroperoxide. Theor Chem Acc 2019. [DOI: 10.1007/s00214-019-2426-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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13
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Liszka MK, Brezinsky K. Variable high‐pressure and concentration study of cyclohexane pyrolysis at high temperatures. INT J CHEM KINET 2018. [DOI: 10.1002/kin.21229] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Miroslaw Krzysztof Liszka
- Department of Mechanical and Industrial Engineering University of Illinois at Chicago Chicago Illinois
| | - Kenneth Brezinsky
- Department of Mechanical and Industrial Engineering University of Illinois at Chicago Chicago Illinois
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14
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Jin L, Song X, Cao Z, Luo L, Zhao C, Lu J, Zhang Q. The isomerization of cytosine: Intramolecular hydrogen atom transfer mediated through formic acid. J PHYS ORG CHEM 2018. [DOI: 10.1002/poc.3831] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Lingxia Jin
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science; Shaanxi University of Technology; Hanzhong China
| | - Xiaoling Song
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science; Shaanxi University of Technology; Hanzhong China
| | - Zhe Cao
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science; Shaanxi University of Technology; Hanzhong China
| | - LiYang Luo
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science; Shaanxi University of Technology; Hanzhong China
| | - Caibin Zhao
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science; Shaanxi University of Technology; Hanzhong China
| | - Jiufu Lu
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science; Shaanxi University of Technology; Hanzhong China
| | - Qiang Zhang
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science; Shaanxi University of Technology; Hanzhong China
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15
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Jin L, Lv M, Wei Y, Lu J, Min S. Reactivity of 5-carboxycytosine toward addition and hydrogen abstraction by ·OH in acetonitrile: a computational study. MOLECULAR SIMULATION 2017. [DOI: 10.1080/08927022.2017.1279286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Lingxia Jin
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science, Shaanxi Sci-Tech University, Hanzhong, P.R. China
| | - Mengdan Lv
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science, Shaanxi Sci-Tech University, Hanzhong, P.R. China
| | - Yawen Wei
- Periodical Offices of Chang’an University, Chang’an University, Xi’an, P.R. China
| | - Jiufu Lu
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science, Shaanxi Sci-Tech University, Hanzhong, P.R. China
| | - Suotian Min
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science, Shaanxi Sci-Tech University, Hanzhong, P.R. China
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16
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Jin L, Lü M, Zhao C, Min S, Zhang T, Zhang Q. The reactivity of the 5-formylcytosine with hydroxyl radical: A theoretical perspective. J PHYS ORG CHEM 2017. [DOI: 10.1002/poc.3691] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Lingxia Jin
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science; Shaanxi Sci-Tech University; Hanzhong 723001 China
| | - Mengdan Lü
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science; Shaanxi Sci-Tech University; Hanzhong 723001 China
| | - Caibin Zhao
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science; Shaanxi Sci-Tech University; Hanzhong 723001 China
| | - Suotian Min
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science; Shaanxi Sci-Tech University; Hanzhong 723001 China
| | - Tianlei Zhang
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science; Shaanxi Sci-Tech University; Hanzhong 723001 China
| | - Qiang Zhang
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science; Shaanxi Sci-Tech University; Hanzhong 723001 China
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17
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Jin L, Zhao C, Liu C, Min S, Zhang T, Wang Z, Wang W, Zhang Q. The multi-channel reaction of the OH radical with 5-hydroxymethylcytosine: a computational study. RSC Adv 2016. [DOI: 10.1039/c5ra24293b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The hydroxyl radical may attack the new cytosine derivative 5-hydroxymethylcytosine (5-hmCyt), causing DNA oxidative damage. Two distinct mechanisms have been explored and our results provide some evidence between 5-hmCyt and tumor development.
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Affiliation(s)
- Lingxia Jin
- Shaanxi Province Key Laboratory of Catalytic Fundamentals & Applications
- Shaanxi Key Laboratory for Resource Biology
- Vitamin D Research Institute
- School of Chemical & Environment Science
- Shaanxi University of Technology
| | - Caibin Zhao
- Shaanxi Province Key Laboratory of Catalytic Fundamentals & Applications
- Shaanxi Key Laboratory for Resource Biology
- Vitamin D Research Institute
- School of Chemical & Environment Science
- Shaanxi University of Technology
| | - Cunfang Liu
- Shaanxi Province Key Laboratory of Catalytic Fundamentals & Applications
- Shaanxi Key Laboratory for Resource Biology
- Vitamin D Research Institute
- School of Chemical & Environment Science
- Shaanxi University of Technology
| | - Suotian Min
- Shaanxi Province Key Laboratory of Catalytic Fundamentals & Applications
- Shaanxi Key Laboratory for Resource Biology
- Vitamin D Research Institute
- School of Chemical & Environment Science
- Shaanxi University of Technology
| | - Tianlei Zhang
- Shaanxi Province Key Laboratory of Catalytic Fundamentals & Applications
- Shaanxi Key Laboratory for Resource Biology
- Vitamin D Research Institute
- School of Chemical & Environment Science
- Shaanxi University of Technology
| | - Zhiyin Wang
- Shaanxi Province Key Laboratory of Catalytic Fundamentals & Applications
- Shaanxi Key Laboratory for Resource Biology
- Vitamin D Research Institute
- School of Chemical & Environment Science
- Shaanxi University of Technology
| | - Wenliang Wang
- Key Laboratory for Macromolecular Science of Shaanxi Province
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710062
- China
| | - Qiang Zhang
- Shaanxi Province Key Laboratory of Catalytic Fundamentals & Applications
- Shaanxi Key Laboratory for Resource Biology
- Vitamin D Research Institute
- School of Chemical & Environment Science
- Shaanxi University of Technology
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18
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Bian H, Wang Z, Zhang F, Wang Z, Zhu J. Unimolecular Reaction Properties for the Long-Chain Alkenyl Radicals. INT J CHEM KINET 2015. [DOI: 10.1002/kin.20941] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Huiting Bian
- State Key Laboratory of Fire Science; University of Science and Technology of China; Hefei Anhui 230026 People's Republic of China
| | - Zhaohui Wang
- National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230029 People's Republic of China
| | - Feng Zhang
- National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230029 People's Republic of China
| | - Zhandong Wang
- National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230029 People's Republic of China
| | - Jiping Zhu
- State Key Laboratory of Fire Science; University of Science and Technology of China; Hefei Anhui 230026 People's Republic of China
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19
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Hudzik JM, Castillo Á, Bozzelli JW. Bond Energies and Thermochemical Properties of Ring-Opened Diradicals and Carbenes of exo-Tricyclo[5.2.1.02,6]decane. J Phys Chem A 2015; 119:9857-78. [DOI: 10.1021/acs.jpca.5b05564] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jason M. Hudzik
- Chemistry, Chemical Engineering
and Environmental Science, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Álvaro Castillo
- Chemistry, Chemical Engineering
and Environmental Science, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Joseph W. Bozzelli
- Chemistry, Chemical Engineering
and Environmental Science, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
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20
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Theoretical study on the thermal decomposition and isomerization of 3-Me-1-heptyl radical. COMPUT THEOR CHEM 2015. [DOI: 10.1016/j.comptc.2015.04.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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Ning H, Gong C, Li Z, Li X. Pressure-Dependent Kinetics of Initial Reactions in Iso-octane Pyrolysis. J Phys Chem A 2015; 119:4093-107. [DOI: 10.1021/acs.jpca.5b02013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- HongBo Ning
- College
of Chemical Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
| | - ChunMing Gong
- College
of Chemical Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
| | - ZeRong Li
- College
of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - XiangYuan Li
- College
of Chemical Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
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22
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Jin L, Zhao C, Zhang T, Wang Z, Min S, Wang W, Wei Y. Effects of an acid–alkaline environment on the reactivity of 5-carboxycytosine with hydroxyl radicals. RSC Adv 2015. [DOI: 10.1039/c5ra17393k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The addition of ˙OH to C5C6 double bond and abstraction of H5 from 5-caCyt are more favourable in neutral, acidic and alkaline conditions.
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Affiliation(s)
- Lingxia Jin
- Shaanxi Province Key Laboratory of Catalytic Fundamentals & Applications
- School of Chemical & Environment Science
- Shaanxi University of Technology
- Hanzhong
- China
| | - Caibin Zhao
- Shaanxi Province Key Laboratory of Catalytic Fundamentals & Applications
- School of Chemical & Environment Science
- Shaanxi University of Technology
- Hanzhong
- China
| | - Tianlei Zhang
- Shaanxi Province Key Laboratory of Catalytic Fundamentals & Applications
- School of Chemical & Environment Science
- Shaanxi University of Technology
- Hanzhong
- China
| | - Zhiyin Wang
- Shaanxi Province Key Laboratory of Catalytic Fundamentals & Applications
- School of Chemical & Environment Science
- Shaanxi University of Technology
- Hanzhong
- China
| | - Suotian Min
- Shaanxi Province Key Laboratory of Catalytic Fundamentals & Applications
- School of Chemical & Environment Science
- Shaanxi University of Technology
- Hanzhong
- China
| | - Wenliang Wang
- Key Laboratory for Macromolecular Science of Shaanxi Province
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710062
- China
| | - Yawen Wei
- Institute of Publication Science
- Chang’an University
- Xi’an 710064
- China
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23
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Chen L, Wang W, Wang W, Li C, Liu F, Lü J. Kinetic and mechanistic investigations of the thermal decomposition of methyl-substituted cycloalkyl radicals. RSC Adv 2015. [DOI: 10.1039/c5ra02525g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
We perform systemic theoretical investigations on the thermal decomposition of 2-Me-cyclobutyl, 2-Me-cyclopentyl and 2-Me-cyclohexyl radicals at CBS-QB3 and CCSD(T) levels.
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Affiliation(s)
- Long Chen
- School of Chemistry and Chemical Engineering
- Key Laboratory for Macromolecular Science of Shaanxi Province
- Shaanxi Normal University
- Xi'an
- People's Republic of China
| | - Wenliang Wang
- School of Chemistry and Chemical Engineering
- Key Laboratory for Macromolecular Science of Shaanxi Province
- Shaanxi Normal University
- Xi'an
- People's Republic of China
| | - Weina Wang
- School of Chemistry and Chemical Engineering
- Key Laboratory for Macromolecular Science of Shaanxi Province
- Shaanxi Normal University
- Xi'an
- People's Republic of China
| | - Chunying Li
- Xi'an Modern Chemistry Research Institute
- Xi'an 710065
- People's Republic of China
| | - Fengyi Liu
- School of Chemistry and Chemical Engineering
- Key Laboratory for Macromolecular Science of Shaanxi Province
- Shaanxi Normal University
- Xi'an
- People's Republic of China
| | - Jian Lü
- Xi'an Modern Chemistry Research Institute
- Xi'an 710065
- People's Republic of China
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24
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How Small Amounts of Impurities Are Sufficient to Catalyze the Interconversion of Carbonyl Compounds and Iminium Ions, or Is There a Metathesis through 1,3-Oxazetidinium Ions? Experiments, Speculations, and Calculations. Helv Chim Acta 2014. [DOI: 10.1002/hlca.201400221] [Citation(s) in RCA: 11] [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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25
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Wang Z, Zhang L, Zhang F. Kinetics of homoallylic/homobenzylic rearrangement reactions under combustion conditions. J Phys Chem A 2014; 118:6741-8. [PMID: 25090229 DOI: 10.1021/jp503325p] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Homoallylic/homobenzylic radicals refer to typical radicals with the radical site located at the β position from the vinyl/phenyl group. These radicals are largely involved in combustion systems, such as the pyrolysis or oxidation of alkenes, cycloalkanes, and aromatics. The 1,2-vinyl/phenyl migration via two steps (cyclization/fission) is a peculiar reaction type for the homoallylic/homobenzylic radicals, entitled homoallylic/homobenzylic rearrangement, which has been studied by theoretical calculations including the Hirshfeld atomic charge analysis in the present work. With the help of rate constant calculations, the competition between this reaction channel and other possible pathways under combustion temperatures (500-2000 K) were evaluated. Analogous 1,3- and 1,4-vinyl/phenyl migration reactions for similar radicals with the radical sites located at the γ and δ positions from the vinyl/phenyl group were also computed. The results indicate that the 1,2-vinyl/phenyl migration is particularly important for the kinetics of unimolecular reactions of homoallylic radicals under 1500 K; nevertheless, it still has noticeable contribution at higher temperature. For those radicals with the radical site at the γ or δ positions, the respective 1,3- or 1,4-vinyl/phenyl migration channel plays an insignificant role under combustion conditions.
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Affiliation(s)
- Zhaohui Wang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China , Hefei, Anhui 230029, P. R. China
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26
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Mechanism construction and simulation for high-temperature combustion of n-propylcyclohexane. Chem Res Chin Univ 2014. [DOI: 10.1007/s40242-014-3460-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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27
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Akbar Ali M, Dillstrom VT, Lai JYW, Violi A. Ab Initio Investigation of the Thermal Decomposition of n-Butylcyclohexane. J Phys Chem A 2014; 118:1067-76. [DOI: 10.1021/jp4062384] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mohamad Akbar Ali
- Department of Mechanical
Engineering, University of Michigan, 2250 Hayward Street - 2150 G.G.
Brown, Ann Arbor, Michigan 48109, United States
| | - V. Tyler Dillstrom
- Department of Mechanical
Engineering, University of Michigan, 2250 Hayward Street - 2150 G.G.
Brown, Ann Arbor, Michigan 48109, United States
| | - Jason Y. W. Lai
- Department of Mechanical
Engineering, University of Michigan, 2250 Hayward Street - 2150 G.G.
Brown, Ann Arbor, Michigan 48109, United States
| | - Angela Violi
- Department of Mechanical
Engineering, University of Michigan, 2250 Hayward Street - 2150 G.G.
Brown, Ann Arbor, Michigan 48109, United States
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28
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29
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Tran LS, Glaude PA, Fournet R, Battin-Leclerc F. EXPERIMENTAL AND MODELING STUDY OF PREMIXED LAMINAR FLAMES OF ETHANOL AND METHANE. ENERGY & FUELS : AN AMERICAN CHEMICAL SOCIETY JOURNAL 2013; 27:2226-2245. [PMID: 23712124 PMCID: PMC3663996 DOI: 10.1021/ef301628x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
To better understand the chemistry of the combustion of ethanol, the structure of five low pressure laminar premixed flames has been investigated: a pure methane flame (φ=1), three pure ethanol flames (φ=0.7, 1.0, and 1.3), and an ethanol/methane mixture flames (φ=1). The flames have been stabilized on a burner at a pressure of 6.7 kPa using argon as dilutant, with a gas velocity at the burner of 64.3 cm/s at 333 K. The results consist of mole fraction profiles of 20 species measured as a function of the height above the burner by probe sampling followed by online gas chromatography analyses. A mechanism for the oxidation of ethanol was proposed. The reactions of ethanol and acetaldehyde were updated and include recent theoretical calculations while that of ethenol, dimethyl ether, acetone, and propanal were added in the mechanism. This mechanism was also tested against experimental results available in the literature for laminar burning velocities and laminar premixed flame where ethenol was detected. The main reaction pathways of consumption of ethanol are analyzed. The effect of the branching ratios of reaction C2H5OH+OH→Products+H2O is also discussed.
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Affiliation(s)
- Luc-Sy Tran
- Laboratoire Réactions et Génie des Procédé, Université de Lorraine, CNRS, BP 20451, 1 rue Grandville, 54001 Nancy, France
| | - Pierre-Alexandre Glaude
- Laboratoire Réactions et Génie des Procédé, Université de Lorraine, CNRS, BP 20451, 1 rue Grandville, 54001 Nancy, France
| | - René Fournet
- Laboratoire Réactions et Génie des Procédé, Université de Lorraine, CNRS, BP 20451, 1 rue Grandville, 54001 Nancy, France
| | - Frédérique Battin-Leclerc
- Laboratoire Réactions et Génie des Procédé, Université de Lorraine, CNRS, BP 20451, 1 rue Grandville, 54001 Nancy, France
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30
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Sirjean B, Fournet R. Unimolecular decomposition of 2,5-dimethylfuran: a theoretical chemical kinetic study. Phys Chem Chem Phys 2013. [DOI: 10.1039/c2cp41927k] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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31
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Davis AC, Tangprasertchai N, Francisco JS. Hydrogen Migrations in Alkylcycloalkyl Radicals: Implications for Chain-Branching Reactions in Fuels. Chemistry 2012; 18:11296-305. [DOI: 10.1002/chem.201103517] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2011] [Revised: 05/01/2012] [Indexed: 11/12/2022]
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32
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Altarawneh M, Dlugogorski BZ. A mechanistic and kinetic study on the decomposition of morpholine. J Phys Chem A 2012; 116:7703-11. [PMID: 22746995 DOI: 10.1021/jp303463j] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The combustion chemistry of morpholine (C(4)H(8)ONH) has been experimentally investigated recently as a representative model compound for O- and N-containing structural entities in biomass. Detailed profiles of species indicate the self-breakdown reactions prevailing over oxidative decomposition reactions. In this study, we derive thermodynamic and kinetic properties pertinent to all plausible reactions involved in the self-decomposition of morpholine and its derived morphyl radicals as a crucial task in the development of comprehensive combustion mechanism. Potential energy surfaces have been mapped out for the decomposition of morpholine and the three morphyl radicals. RRKM-based calculations predict the self-decomposition of morpholine to be dominated by 1,3-intramolecular hydrogen shift into the NH group at all temperatures and pressures. Self-decomposition of morpholine is shown to provide pathways for the formation of the experimentally detected products such as ethenol and ethenamine. Energetic requirements of all self-decomposition of morphyl radicals are predicted to be of modest values (i.e., 20-40 kcal/mol) which in turn support the occurrence of breaking-down reactions into two-heavy-atom species and the generation of doubly unsaturated four-heavy-atom segments. Calculated thermochemical parameters (in terms of standard enthalpies of formation, standard entropies, and heat capacities) and kinetic parameters (in terms of reaction rate constants at a high pressure limit) should be instrumental in building a robust kinetic model for the oxidation of morpholine.
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Affiliation(s)
- Mohammednoor Altarawneh
- Priority Research Centre for Energy, Faculty of Engineering & Built Environment, The University of Newcastle, Callaghan NSW 2308, Australia.
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33
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Auzmendi-Murua I, Bozzelli JW. Thermochemical Properties and Bond Dissociation Energies of C3–C5 Cycloalkyl Hydroperoxides and Peroxy Radicals: Cycloalkyl Radical + 3O2 Reaction Thermochemistry. J Phys Chem A 2012; 116:7550-63. [DOI: 10.1021/jp302699s] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Itsaso Auzmendi-Murua
- Department of Chemistry
and Chemical Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Joseph W. Bozzelli
- Department of Chemistry
and Chemical Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
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34
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Sy Tran L, Sirjean B, Glaude PA, Fournet R, Battin-Leclerc F. PROGRESS IN DETAILED KINETIC MODELING OF THE COMBUSTION OF OXYGENATED COMPONENTS OF BIOFUELS. ENERGY (OXFORD, ENGLAND) 2012; 43:4-18. [PMID: 23700355 PMCID: PMC3657721 DOI: 10.1016/j.energy.2011.11.013] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Due to growing environmental concerns and diminishing petroleum reserves, a wide range of oxygenated species has been proposed as possible substitutes to fossil fuels: alcohols, methyl esters, acyclic and cyclic ethers. After a short review the major detailed kinetic models already proposed in the literature for the combustion of these molecules, the specific classes of reactions considered for modeling the oxidation of acyclic and cyclic oxygenated molecules respectively, are detailed.
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Affiliation(s)
- Luc Sy Tran
- Laboratoire Réactions et Génie des Procédés, Nancy Université, CNRS, BP 20451, 1 rue Grandville, 54001 Nancy, France
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35
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Sirjean B, Fournet R. Theoretical Study of the Thermal Decomposition of the 5-Methyl-2-furanylmethyl Radical. J Phys Chem A 2012; 116:6675-84. [DOI: 10.1021/jp303680h] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Baptiste Sirjean
- Laboratoire Réactions
et Génie des Procédés,
CNRS, Université de Lorraine, ENSIC,
1 rue Grandville BP 20451, 54001 Nancy Cedex, France
| | - René Fournet
- Laboratoire Réactions
et Génie des Procédés,
CNRS, Université de Lorraine, ENSIC,
1 rue Grandville BP 20451, 54001 Nancy Cedex, France
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36
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Affiliation(s)
- Charles L. Perrin
- Department of Chemistry, University of California—San Diego, La Jolla, California 92093-0358,
United States
| | - Agnes Flach
- Department of Chemistry, University of California—San Diego, La Jolla, California 92093-0358,
United States
| | - Marlon N. Manalo
- Department of Chemistry, University of California—San Diego, La Jolla, California 92093-0358,
United States
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37
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Auzmendi-Murua I, Hudzik J, Bozzelli JW. Chemical activation reactions of cyclic alkanes and ethers and tricyclodecane ring-opened diradicals with O2: Thermochemistry, reaction paths, kinetics, and modeling. INT J CHEM KINET 2012. [DOI: 10.1002/kin.20630] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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38
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Magoon GR, Aguilera-Iparraguirre J, Green WH, Lutz JJ, Piecuch P, Wong HW, Oluwole OO. Detailed chemical kinetic modeling of JP-10 (exo-tetrahydrodicyclopentadiene) high-temperature oxidation: Exploring the role of biradical species in initial decomposition steps. INT J CHEM KINET 2012. [DOI: 10.1002/kin.20702] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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39
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Sirjean B, Dames E, Wang H, Tsang W. Tunneling in Hydrogen-Transfer Isomerization of n-Alkyl Radicals. J Phys Chem A 2011; 116:319-32. [DOI: 10.1021/jp209360u] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Baptiste Sirjean
- Department of Aerospace and Mechanical Engineering, University of Southern California, Los Angeles, California 90089-1453, United States
| | - Enoch Dames
- Department of Aerospace and Mechanical Engineering, University of Southern California, Los Angeles, California 90089-1453, United States
| | - Hai Wang
- Department of Aerospace and Mechanical Engineering, University of Southern California, Los Angeles, California 90089-1453, United States
| | - Wing Tsang
- National Institute of Standards and Technologies, Gaithersburg, Maryland 20899, United States
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40
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Han S, Yoo HS, Ahn DS, Choi YS, Kim SK. Vacuum ultraviolet mass-analyzed threshold ionization spectroscopy of methylcyclohexane in the supersonic jet. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.11.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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41
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Xu C, Al Shoaibi AS, Wang C, Carstensen HH, Dean AM. Kinetic Modeling of Ethane Pyrolysis at High Conversion. J Phys Chem A 2011; 115:10470-90. [DOI: 10.1021/jp206503d] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Chen Xu
- Department of Chemical Engineering, Colorado School of Mines, Golden, Colorado 80401, United States
| | | | - Chenguang Wang
- Department of Chemical Engineering, Colorado School of Mines, Golden, Colorado 80401, United States
| | - Hans-Heinrich Carstensen
- Department of Chemical Engineering, Colorado School of Mines, Golden, Colorado 80401, United States
| | - Anthony M. Dean
- Department of Chemical Engineering, Colorado School of Mines, Golden, Colorado 80401, United States
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Battin-Leclerc F, Blurock E, Bounaceur R, Fournet R, Glaude PA, Herbinet O, Sirjean B, Warth V. Towards cleaner combustion engines through groundbreaking detailed chemical kinetic models. Chem Soc Rev 2011; 40:4762-82. [PMID: 21597604 DOI: 10.1039/c0cs00207k] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the context of limiting the environmental impact of transportation, this critical review discusses new directions which are being followed in the development of more predictive and more accurate detailed chemical kinetic models for the combustion of fuels. In the first part, the performance of current models, especially in terms of the prediction of pollutant formation, is evaluated. In the next parts, recent methods and ways to improve these models are described. An emphasis is given on the development of detailed models based on elementary reactions, on the production of the related thermochemical and kinetic parameters, and on the experimental techniques available to produce the data necessary to evaluate model predictions under well defined conditions (212 references).
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Affiliation(s)
- Frédérique Battin-Leclerc
- Laboratoire Réactions et Génie des Procédés (LRGP), CNRS, Nancy Université, ENSIC, 1, rue Grandville, BP 20451, 54001 NANCY Cedex, France.
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Yang X, Jasper AW, Giri BR, Kiefer JH, Tranter RS. A shock tube and theoretical study on the pyrolysis of 1,4-dioxane. Phys Chem Chem Phys 2011; 13:3686-700. [DOI: 10.1039/c0cp01541e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Peukert S, Naumann C, Braun-Unkhoff M, Riedel U. Formation of H-atoms in the pyrolysis of cyclohexane and 1-hexene: A shock tube and modeling study. INT J CHEM KINET 2010. [DOI: 10.1002/kin.20539] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Han S, Yoo HS, Kim SK. Conformer-Specific Ionization Spectroscopy of Bromocyclohexane: Equatorial versus Axial Conformers. J Phys Chem A 2010; 114:10005-10. [DOI: 10.1021/jp105541v] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Songhee Han
- Department of Chemistry and KI for Nanocentury, KAIST, Daejeon 305-701, Korea
| | - Hyun Sik Yoo
- Department of Chemistry and KI for Nanocentury, KAIST, Daejeon 305-701, Korea
| | - Sang Kyu Kim
- Department of Chemistry and KI for Nanocentury, KAIST, Daejeon 305-701, Korea
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Kiefer JH, Gupte KS, Harding LB, Klippenstein SJ. Shock tube and theory investigation of cyclohexane and 1-hexene decomposition. J Phys Chem A 2010; 113:13570-83. [PMID: 19842681 DOI: 10.1021/jp905891q] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The decomposition of cyclohexane (c-C(6)H(12)) was studied in a shock tube using the laser-schlieren technique over the temperature range 1300-2000 K and for 25-200 Torr in mixtures of 2%, 4%, 10%, and 20% cyclohexane in Kr. Vibrational relaxation of the cyclohexane was also examined in 10 experiments covering 1100-1600 K for pressures below 20 Torr, and relaxation was found to be too fast to allow resolution of incubation times. The dissociation of 1-hexene (1- C(6)H(12)), apparently the sole initial product of cyclohexane decomposition, was also studied over 1220-1700 K for 50 and 200 Torr using 2% and 3% 1-hexene in Kr. On heating, cyclohexane simply isomerizes to 1-hexene, and this then dissociates almost entirely by a more rapid C-C scission to allyl and n-propyl radicals. This two-step reaction results in an initial small density gradient from the slight endothermicity of the isomerization. The gradient then rises strongly as the product 1-hexene dissociates. For the lower temperatures, this behavior is fully resolved here. For the higher pressures, 1-hexene decomposition generates negative gradients (exothermic reaction) as the radicals formed begin to recombine. Cyclohexane also generates such gradients, but these are now much smaller because the radical pool is depleted by abstraction from the reactant. A complete mechanism for the 1-hexene decomposition and for that of cyclohexane involving 79 reactions and 30 species is used in the final modeling of the gradients. Rate constants and RRKM fit parameters for the initial reactions are provided for the entire range of conditions. The possibility of direct reaction to allyl and n-propyl radicals, without stabilization of the intermediate 1-hexene, is examined down to pressures as low as 25 Torr, without a clear resolution of the issue. High-pressure limit rate constants from RRKM extrapolation are k(infinity)(c-C(6)H(12) --> 1-C(6)H(12)) = (8.76 x 10(17)) exp((-91.94 kcal/mol)/RT) s(-1) (T = 1300-2000 K) and k(infinity)(1-C(6)H(12) --> (*)C(3)H(7) + (*)C(3)H(5)) = (1.46 x 10(16)) exp((-69.12 kcal/mol)/RT) s(-1) (T = 1200-1700 K). This high-pressure rate for cyclohexane is entirely consistent with the notion that the isomerization involves initial C-C fission to a diradical. These extrapolated high-pressure rates are in good agreement with much of the literature.
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Affiliation(s)
- J H Kiefer
- Department of Chemical Engineering, University of Illinois at Chicago, Chicago, Illinois 60607, USA.
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Sirjean B, Glaude PA, Ruiz-Lòpez MF, Fournet R. Theoretical kinetic study of the reactions of cycloalkylperoxy radicals. J Phys Chem A 2009; 113:6924-35. [PMID: 19476363 DOI: 10.1021/jp901492e] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Reactions of alkyl radicals with oxygen are key reactions in the low-temperature oxidation of hydrocarbons, but they have not been extensively studied yet in the case of cycloalkanes. Isomerizations of cycloalkylperoxy radicals and formation of cyclic ethers are especially important. In the present work, a theoretical study of the gas-phase reactions of cyclopentylperoxy and cyclohexylperoxy radicals has been carried out by means of quantum chemical calculations at the CBS-QB3 level. Computations on cyclopentylperoxy decomposition pathways are reported here for the first time. Thermochemical data have been obtained by means of isodesmic reactions, and the contribution of hindered rotors has been explicitly taken into account. Transition state theory has been used to calculate rate constants for all the elementary reactions. Three-parameter Arrhenius expressions have been derived in the temperature range 300-1000 K. Tunneling effects have been accounted for in the case of H-atom transfers. Our results compare well with experimental data and previous calculations available in the literature. In particular, the predicted rate constants for processes involving cyclohexylperoxy radicals, which have been introduced in a reaction mechanism scheme proposed before, exhibit excellent agreement with experiments at low and intermediate temperatures.
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Affiliation(s)
- B Sirjean
- Département de Chimie Physique des Réactions, CNRS, Nancy-Université, 1 rue Grandville, BP 20451, 54001 Nancy Cedex, France
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Sirjean B, Glaude PA, Ruiz-Lopèz MF, Fournet R. Theoretical Kinetic Study of Thermal Unimolecular Decomposition of Cyclic Alkyl Radicals. J Phys Chem A 2008; 112:11598-610. [DOI: 10.1021/jp805640s] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- B. Sirjean
- Département de Chimie Physique des Réactions, Nancy Université - CNRS, 1, rue Grandville, BP 20451, 54001 Nancy Cedex, France, and Equipe de Chimie et Biochimie Théoriques, SRSMC, Nancy Université - CNRS, Boulevard des Aiguillettes, BP 239, 54506 Vandoeuvre-lès-Nancy, France
| | - P. A. Glaude
- Département de Chimie Physique des Réactions, Nancy Université - CNRS, 1, rue Grandville, BP 20451, 54001 Nancy Cedex, France, and Equipe de Chimie et Biochimie Théoriques, SRSMC, Nancy Université - CNRS, Boulevard des Aiguillettes, BP 239, 54506 Vandoeuvre-lès-Nancy, France
| | - M. F. Ruiz-Lopèz
- Département de Chimie Physique des Réactions, Nancy Université - CNRS, 1, rue Grandville, BP 20451, 54001 Nancy Cedex, France, and Equipe de Chimie et Biochimie Théoriques, SRSMC, Nancy Université - CNRS, Boulevard des Aiguillettes, BP 239, 54506 Vandoeuvre-lès-Nancy, France
| | - R. Fournet
- Département de Chimie Physique des Réactions, Nancy Université - CNRS, 1, rue Grandville, BP 20451, 54001 Nancy Cedex, France, and Equipe de Chimie et Biochimie Théoriques, SRSMC, Nancy Université - CNRS, Boulevard des Aiguillettes, BP 239, 54506 Vandoeuvre-lès-Nancy, France
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49
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Sirjean B, Fournet R, Glaude PA, Ruiz-López MF. Extension of the composite CBS-QB3 method to singlet diradical calculations. Chem Phys Lett 2007. [DOI: 10.1016/j.cplett.2006.12.055] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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