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Gao Y, Hu X, Deng C, Wang M, Niu X, Luo N, Ji Y, Li G, An T. New insight into molecular mechanism of P450-Catalyzed metabolism of emerging contaminants and its consequence for human health: A case study of preservative methylparaben. ENVIRONMENT INTERNATIONAL 2023; 174:107890. [PMID: 37001212 DOI: 10.1016/j.envint.2023.107890] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 06/19/2023]
Abstract
Hydroxylated metabolites in the living body are considered as a potential biomarker of exposure to emerging contaminations (ECs) and breast cancer, but their formation mechanism has not received enough attention. Besides, the adverse impacts of metabolites during the metabolic transformation of ECs largely remain unknown. In this study, we employed a density functional calculation combing with in-vitro incubation of human liver microsomes to explore the bio-transformation of preservative methylparaben (MPB) in human bodies. Our results showed that hydroxylated metabolites of MPB (OH-MPB) were observed experimentally, while a formation mechanism was revealed at the molecular level. That is, hydroxylated metabolite was exclusively formed via the hydrogen abstraction from the phenolic hydroxyl group of MPB followed by the OH-rebound pathway, rather than the direct hydroxylation on the benzene ring. The increasing of hydroxyl groups on ECs could improve the metabolisms. This was confirmed in the metabolism of ECs without hydroxyl group and with multiple-hydroxyl groups, respectively. Furthermore, toxicity assessments show that compared to parent MPB, the hydroxylated metabolites have increased negative impacts on the gastrointestinal system and liver. A semiquinone product exhibits potential damage in the cardiovascular system and epoxides are toxic to the blood and gastrointestinal system. The findings deepen our insight into the biotransformation of parabens in human health, especially by providing health warnings about the potential impacts caused by semiquinone and epoxides.
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Affiliation(s)
- Yanpeng Gao
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Xinyi Hu
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Chuyue Deng
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Mei Wang
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiaolin Niu
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Na Luo
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Yuemeng Ji
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China.
| | - Guiying Li
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Taicheng An
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
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2
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Zhou X, Cao Z, Wang F, Wang Z. Barrier heights, reaction energies and bond dissociation energies for RH + HO 2 reactions with coupled-cluster theory, density functional theory and diffusion quantum Monte Carlo methods. Phys Chem Chem Phys 2022; 25:341-350. [PMID: 36477176 DOI: 10.1039/d2cp04463c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Hydrogen abstraction reactions by the HO2 radical from hydrocarbon molecules are an important class of reactions in the autoignition of hydrocarbon fuels. Performance of DLPNO-CC and DFT methods using three hybrids and four double hybrids as well as FN-DMC with the single-Slater-Jastrow trial wavefunction on barrier heights and reaction energies of RH + HO2 reactions as well as bond dissociation energies of the involved X-H molecules is evaluated by comparison with the highly accurate CCSD(T)-F12b/CBS results in this study. Our results show that the DLPNO-CCSD(T)-F12 method can achieve highly accurate barrier heights, reaction energies and X-H bond energies for RH + HO2 reactions at a relatively low computational cost, and it is applicable to the H-abstraction reactions of larger molecules. Among all DFAs, MN15 and the employed double hybrids can achieve accurate barrier heights and reaction energies with MADs of less than or around 2 kJ mol-1, but their error on X-H bond energies is more pronounced. Only DSD-BLYP and DSD-PBEB95 can provide X-H bond energies with MADs less than 4 kJ mol-1. Considering dispersion correction in DFT calculations does not improve these barrier heights and reaction energies. The error of FN-DMC on barrier heights and reaction energies is slightly larger than that of MN15 and those of double hybrids, but it can achieve results within chemical accuracy for these reactions and the X-H bond energies.
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Affiliation(s)
- Xiaojun Zhou
- Department of Physics, Shaanxi University of Science and Technology, Xi'an, 710021, P. R. China.
| | - Zhanli Cao
- School of Science, Xi'an University of Posts and Telecommunications, Xi'an, 710121, P. R. China
| | - Fan Wang
- Institute of Atomic and Molecular Physics, Key Laboratory of High Energy Density Physics and Technology, Ministry of Education, Sichuan University, Chengdu, P. R. China
| | - Zhifan Wang
- School of Electronic Engineering, Chengdu Technological University, Chengdu, P. R. China
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3
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Zapata Trujillo JC, McKemmish LK. Meta‐analysis of uniform scaling factors for harmonic frequency calculations. WIRES COMPUTATIONAL MOLECULAR SCIENCE 2022. [DOI: 10.1002/wcms.1584] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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4
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Luck RL, Newberry NK. Free‐radical catalyzed oxidation reactions with cyclohexene and cyclooctene with peroxides as initiators. J PHYS ORG CHEM 2022. [DOI: 10.1002/poc.4326] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rudy L. Luck
- Department of Chemistry Michigan Technological University Houghton Michigan USA
| | - Nick K. Newberry
- Department of Chemistry Michigan Technological University Houghton Michigan USA
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5
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Baradyn M, Ratkiewicz A. On-The-Fly Kinetics of the Hydrogen Abstraction by Hydroperoxyl Radical: An Application of the Reaction Class Transition State Theory. Front Chem 2022; 9:806873. [PMID: 35174142 PMCID: PMC8841336 DOI: 10.3389/fchem.2021.806873] [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: 11/01/2021] [Accepted: 12/22/2021] [Indexed: 11/23/2022] Open
Abstract
A Reaction Class Transition State Theory (RC-TST) is applied to calculate thermal rate constants for hydrogen abstraction by OOH radical from alkanes in the temperature range of 300–2500 K. The rate constants for the reference reaction C2H6 + ∙OOH → ∙C2H5 + H2O2, is obtained with the Canonical Variational Transition State Theory (CVT) augmented with the Small Curvature Tunneling (SCT) correction. The necessary parameters were obtained from M06-2X/aug-cc-pVTZ data for a training set of 24 reactions. Depending on the approximation employed, only the reaction energy or no additional parameters are needed to predict the RC-TST rates for other class representatives. Although each of the reactions can in principle be investigated at higher levels of theory, the approach provides a nearly equally reliable rate constant at a fraction of the cost needed for larger and higher level calculations. The systematic error is smaller than 50% in comparison with high level computations. Satisfactory agreement with literature data, augmented by the lack of necessity of tedious and time consuming transition state calculations, facilitated the seamless application of the proposed methodology to the Automated Reaction Mechanism Generators (ARMGs) programs.
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6
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Holtomo O, Mbigah MD, Nsangou M, Motapon O. Insight of UV-vis spectra and atmospheric implication for the reaction of ˙OH radical towards glyphosate herbicide and its hydrates. RSC Adv 2021; 11:16404-16418. [PMID: 35479155 PMCID: PMC9030808 DOI: 10.1039/d1ra01591e] [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: 02/28/2021] [Accepted: 04/20/2021] [Indexed: 11/28/2022] Open
Abstract
The rate constant of the reactions of ˙OH radicals with glyphosate (GPS) and its hydrates (GPS(H2O)n=1–3) were evaluated using the dual method M06-2X/6-311++G(df,p)//6-31+G(df,p) over the temperature range of 200–400 K. The results served to estimate the atmospheric lifetime along with the photochemical ozone creation potential (POCP). The calculations yielded an atmospheric lifetime of 2.34 hours and a POCP of 24.7 for GPS. Upon addition of water molecules, there is an increase of lifetime and decrease of POCP for water monomer and water dimer. The POCP for water trimer is slightly above the gaseous GPS. However, the POCPs of GPS and its hydrates are comparable to that of alkanes. The GPS and its hydrates were found to be a potential reservoir of CO2. The acidification potential (AP) of GPS was found to be 0.189 and decreases upon addition of water molecules. This shows negligible contribution to rain acidification as the AP is less than that of SO2. The UV-vis spectra were attained using the M06-L/6-311++G(3df,3pd) method and cover the range 160–260 nm which fits well with experiment. The rate constant of the reactions of ˙OH radical with glyphosate (GPS) and its hydrates (GPS(H2O)n=1–3) were evaluated using the dual method M06-2X/6-311++G(df,p)//6-31+G(df,p) over the temperature range of 200–400 K.![]()
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Affiliation(s)
- Olivier Holtomo
- Department of Physics
- Faculty of Science
- University of Bamenda
- Cameroon
- Department of Physics
| | | | - Mama Nsangou
- Department of Physics
- Higher Teacher's Training College
- University of Maroua
- Cameroon
- Department of Physics
| | - Ousmanou Motapon
- Department of Physics
- Faculty of Science
- University of Maroua
- Cameroon
- Laboratory of Fundamental Physics
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7
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Xu SM, Sun XH, Zong WG, Li ZR, Li XY. Kinetic Analysis for Reaction of Cyclopentadiene with Hydroperoxyl Radical under Low- and Medium-Temperature Combustion. J Phys Chem A 2020; 124:8280-8291. [PMID: 32924506 DOI: 10.1021/acs.jpca.0c02882] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The kinetic data of cyclopentadiene C5H6 oxidation reactions are significant for the construction of aromatics oxidation mechanism because cyclopentadiene C5H6 has been proved to be an important intermediate in the aromatics combustion. Kinetics for the elementary reactions on the potential energy surface (PES) relevant for the C5H6 + HO2 reaction are studied in this work. Stationary points on the PES are calculated by employing the CCSD(T)/cc-pVTZ//B3LYP/6-311G(d,p) level of theory. High-pressure limit and pressure-dependent rate constants for elementary reactions on this PES are calculated using conventional transition state theory (TST), variational transition-state theory (VTST) and Rice-Ramsberger-Kassel-Marcus/master equation (RRKM/ME) theory. In this work, the reaction channels for the C5H6 + HO2 reaction, which include H-abstraction channels from C5H6 by HO2 to form the C5H5 + H2O2 and the addition channels through well-skipping pathways to form the bimolecular products C5H7 + O2 or C5H6O + OH, or through C5H7O2 stabilization and its unimolecular decomposition to form the bimolecular products C5H7 + O2 or C5H6O + OH, namely sequential pathways, are studied. Also, the consuming reaction channels for the compounds C5H6O and C5H7 in the addition products are studied. The dominant reaction channels for these reactions are unraveled through comparing the energy barriers and rate constants of all elementary reactions and it is found: (1) HO2 addition to cyclopentadiene C5H6 is more important than direct H-abstraction. (2) in the HO2 addition channels, the well-skipping pathways and sequential pathways are competing and the well-skipping pathways will be favor in the higher pressures and the sequential pathways will be favor in the higher temperature. (3) The major consumption reaction channel for the five-member-ring compound C5H6O is the reaction channel to form C4H6 + CO and the major consumption reaction channel for the five-member-ring compound C5H7 is the reaction channel to form C3H5 + C2H2. High-pressure limit rate constants and pressure-dependent rate constants for elementary reactions on the PES are calculated, which will be useful in modeling the oxidation of aromatic compounds at low- and medium-temperatures.
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Affiliation(s)
- Shi-Min Xu
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Xiao-Hui Sun
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Wen-Gang Zong
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Ze-Rong Li
- College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Xiang-Yuan Li
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China.,Engineering Research Center of Combustion and Cooling for Aerospace Power, Ministry of Education, Sichuan University, Chengdu, Sichuan 610065, P. R. China
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8
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Class CA, Vasiliou AK, Kida Y, Timko MT, Green WH. Detailed kinetic model for hexyl sulfide pyrolysis and its desulfurization by supercritical water. Phys Chem Chem Phys 2019; 21:10311-10324. [DOI: 10.1039/c9cp00234k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The automated reaction mechanism generator is used to model the decomposition of hexyl sulfide with and without supercritical water.
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Affiliation(s)
- Caleb A. Class
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
| | - AnGayle K. Vasiliou
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
| | - Yuko Kida
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
| | - Michael T. Timko
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
| | - William H. Green
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
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9
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Ma G, Yu H, Xu T, Wei X, Chen J, Lin H, Schüürmann G. Computational Insight into the Activation Mechanism of Carcinogenic N'-Nitrosonornicotine (NNN) Catalyzed by Cytochrome P450. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:11838-11847. [PMID: 30209943 DOI: 10.1021/acs.est.8b02795] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Tobacco-specific N'-nitrosonornicotine (NNN), a genotoxic nitrosamine classified as Group 1 carcinogen, is also present in atmospheric particulate matter and has even been detected as a new disinfection byproduct in wastewaters. NNN generally requires metabolic activation by cytochrome P450 enzymes to exert its genotoxicity, but the respective biotransformation pathways have not been described in detail. In this work, we performed density functional theory (DFT) calculations to unravel possible NNN activation pathways including α-hydroxylation, β-hydroxylation, pyridine N-oxidation, and norcotinine formation. The results reveal an initial rate-determining Hα-atom abstraction step for α-hydroxylation, followed by an unexpected kinetic competition between denitrosation and OH rebound, leading to ( iso-)myosmine as a detoxified product and α-hydroxyNNNs as the precursor of carcinogenic diazohydroxides, respectively. Further detoxification routes are given by β-hydroxylation with relative high reaction barrier and N-oxidation with comparable barrier to the toxifying α-hydroxylation. Moreover, we show for the first time how norcotinine can be generated as a minor NNN metabolite that is formed from iso-myosmine through a unique porphyrin-assisted H atom 1,2-transfer mechanism. These results demonstrate that the carcinogenic potential of NNN is subject to a kinetic competition between activating and deactivating metabolic routes, and identify respective biomarkers to inform about the individual risk associated with NNN exposure.
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Affiliation(s)
- Guangcai Ma
- College of Geography and Environmental Sciences , Zhejiang Normal University , Yingbin Avenue 688 , 321004 , Jinhua , China
| | - Haiying Yu
- College of Geography and Environmental Sciences , Zhejiang Normal University , Yingbin Avenue 688 , 321004 , Jinhua , China
| | - Ting Xu
- College of Geography and Environmental Sciences , Zhejiang Normal University , Yingbin Avenue 688 , 321004 , Jinhua , China
| | - Xiaoxuan Wei
- College of Geography and Environmental Sciences , Zhejiang Normal University , Yingbin Avenue 688 , 321004 , Jinhua , China
| | - Jianrong Chen
- College of Geography and Environmental Sciences , Zhejiang Normal University , Yingbin Avenue 688 , 321004 , Jinhua , China
| | - Hongjun Lin
- College of Geography and Environmental Sciences , Zhejiang Normal University , Yingbin Avenue 688 , 321004 , Jinhua , China
| | - Gerrit Schüürmann
- UFZ Department of Ecological Chemistry , Helmholtz Centre for Environmental Research , Permoserstrasse 15 , 04318 , Leipzig , Germany
- Institute of Organic Chemistry , Technical University Bergakademie Freiberg , Leipzig Strasse 29 , 09596 Freiberg , Germany
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10
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Chan B, Simmie JM. Barriometry – an enhanced database of accurate barrier heights for gas-phase reactions. Phys Chem Chem Phys 2018; 20:10732-10740. [DOI: 10.1039/c7cp08045j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The kinetics of many reactions are critically dependent upon the barrier heights for which accurate determination can be difficult. More than 100 accurate barriers are obtained with the high-level W3X-L composite procedure.
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Affiliation(s)
- Bun Chan
- Graduate School of Engineering
- Nagasaki University
- Nagasaki 852-8521
- Japan
| | - John M. Simmie
- School of Chemistry
- National University of Ireland
- Galway
- Ireland
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11
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Nageh H, Zhao L, Nakayama A, Hasegawa JY, Wang Y, Nakano T. Photo-induced β-elimination of 9-fluorenylmethanol leading to dibenzofulvene. Chem Commun (Camb) 2017; 53:8431-8434. [PMID: 28702520 DOI: 10.1039/c7cc03297h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An effective photo-induced β-elimination of an alcohol leading to a vinyl compound is introduced for the first time. 9-Fluorenylmethanol was irradiated in a solution using a Xe lamp and was efficiently converted to dibenzofulvene (DBF) (9-methylenefluorene) in the absence of base which is necessary in the corresponding ground-state reaction.
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Affiliation(s)
- Hassan Nageh
- Institute for Catalysis (ICAT) and Graduate School of Chemical Sciences and Engineering, Hokkaido University, N 21, W 10, Kita-ku, Sapporo 001-0021, Japan.
| | - Liming Zhao
- Institute for Catalysis (ICAT) and Graduate School of Chemical Sciences and Engineering, Hokkaido University, N 21, W 10, Kita-ku, Sapporo 001-0021, Japan.
| | - Akira Nakayama
- Institute for Catalysis (ICAT) and Graduate School of Chemical Sciences and Engineering, Hokkaido University, N 21, W 10, Kita-ku, Sapporo 001-0021, Japan.
| | - Jun-Ya Hasegawa
- Institute for Catalysis (ICAT) and Graduate School of Chemical Sciences and Engineering, Hokkaido University, N 21, W 10, Kita-ku, Sapporo 001-0021, Japan. and Integrated Research Consortium on Chemical Sciences (IRCCS), Institute for Catalysis, Hokkaido University, N21W10, Kita-ku, Sapporo 001-0021, Japan
| | - Yue Wang
- Institute for Catalysis (ICAT) and Graduate School of Chemical Sciences and Engineering, Hokkaido University, N 21, W 10, Kita-ku, Sapporo 001-0021, Japan.
| | - Tamaki Nakano
- Institute for Catalysis (ICAT) and Graduate School of Chemical Sciences and Engineering, Hokkaido University, N 21, W 10, Kita-ku, Sapporo 001-0021, Japan. and Integrated Research Consortium on Chemical Sciences (IRCCS), Institute for Catalysis, Hokkaido University, N21W10, Kita-ku, Sapporo 001-0021, Japan
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12
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Siddique K, Altarawneh M, Gore J, Westmoreland PR, Dlugogorski BZ. Hydrogen Abstraction from Hydrocarbons by NH2. J Phys Chem A 2017; 121:2221-2231. [DOI: 10.1021/acs.jpca.6b12890] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kamal Siddique
- School
of Engineering and Information Technology, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia
| | - Mohammednoor Altarawneh
- School
of Engineering and Information Technology, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia
| | - Jeff Gore
- Dyno Nobel Asia Pacific Pty Ltd., Mt.
Thorley, NSW 2330, Australia
| | - Phillip R. Westmoreland
- Department
of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695-7905, United States
| | - Bogdan Z. Dlugogorski
- School
of Engineering and Information Technology, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia
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13
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Zeng Z, Altarawneh M, Oluwoye I, Glarborg P, Dlugogorski BZ. Inhibition and Promotion of Pyrolysis by Hydrogen Sulfide (H2S) and Sulfanyl Radical (SH). J Phys Chem A 2016; 120:8941-8948. [DOI: 10.1021/acs.jpca.6b09357] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhe Zeng
- School
of Engineering and Information Technology, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia
| | - Mohammednoor Altarawneh
- School
of Engineering and Information Technology, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia
| | - Ibukun Oluwoye
- School
of Engineering and Information Technology, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia
| | - Peter Glarborg
- Department
of Chemical Engineering, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - Bogdan Z. Dlugogorski
- School
of Engineering and Information Technology, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia
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14
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Class CA, Liu M, Vandeputte AG, Green WH. Automatic mechanism generation for pyrolysis of di-tert-butyl sulfide. Phys Chem Chem Phys 2016; 18:21651-8. [DOI: 10.1039/c6cp02202b] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The automated Reaction Mechanism Generator (RMG), using rate parameters derived from ab initio CCSD(T) calculations, is used to build reaction networks for the thermal decomposition of di-tert-butyl sulfide.
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Affiliation(s)
- Caleb A. Class
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
| | - Mengjie Liu
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
| | - Aäron G. Vandeputte
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
| | - William H. Green
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
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15
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Class CA, Aguilera-Iparraguirre J, Green WH. A kinetic and thermochemical database for organic sulfur and oxygen compounds. Phys Chem Chem Phys 2015; 17:13625-39. [DOI: 10.1039/c4cp05631k] [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
Potential energy surfaces and reaction kinetics were calculated for reactions involving sulfur and oxygen, which are potentially relevant in combustion and desulfurization chemistry.
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Affiliation(s)
- Caleb A. Class
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
| | | | - William H. Green
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
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16
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Mendes J, Zhou CW, Curran HJ. Theoretical Chemical Kinetic Study of the H-Atom Abstraction Reactions from Aldehydes and Acids by Ḣ Atoms and ȮH, HȮ2, and ĊH3 Radicals. J Phys Chem A 2014; 118:12089-104. [DOI: 10.1021/jp5072814] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jorge Mendes
- Combustion Chemistry Centre, National University of Ireland, Galway, Ireland
| | - Chong-Wen Zhou
- Combustion Chemistry Centre, National University of Ireland, Galway, Ireland
| | - Henry J. Curran
- Combustion Chemistry Centre, National University of Ireland, Galway, Ireland
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17
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Galano A, Alvarez-Idaboy JR. Kinetics of radical-molecule reactions in aqueous solution: A benchmark study of the performance of density functional methods. J Comput Chem 2014; 35:2019-26. [DOI: 10.1002/jcc.23715] [Citation(s) in RCA: 164] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 07/25/2014] [Accepted: 08/03/2014] [Indexed: 02/06/2023]
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
| | - Juan Raúl Alvarez-Idaboy
- Departamento de Física y Química Teórica; Facultad de Química; Universidad Nacional Autónoma de México; México DF 04510 México
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18
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Buras ZJ, Elsamra RMI, Jalan A, Middaugh JE, Green WH. Direct Kinetic Measurements of Reactions between the Simplest Criegee Intermediate CH2OO and Alkenes. J Phys Chem A 2014; 118:1997-2006. [DOI: 10.1021/jp4118985] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zachary J. Buras
- Department
of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts
Avenue, Cambridge, Massachusetts 02139, United States
| | - Rehab M. I. Elsamra
- Department
of Chemistry, Faculty of Science, Alexandria University, Ibrahimia, 21321, Alexandria, Egypt
| | - Amrit Jalan
- Department
of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts
Avenue, Cambridge, Massachusetts 02139, United States
| | - Joshua E. Middaugh
- Department
of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts
Avenue, Cambridge, Massachusetts 02139, United States
| | - William H. Green
- Department
of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts
Avenue, Cambridge, Massachusetts 02139, United States
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19
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Mendes J, Zhou CW, Curran HJ. Rate Constant Calculations of H-Atom Abstraction Reactions from Ethers by HȮ2 Radicals. J Phys Chem A 2014; 118:1300-8. [DOI: 10.1021/jp412496g] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Jorge Mendes
- Combustion Chemistry Centre, National University of Ireland, Galway, Ireland
| | - Chong-Wen Zhou
- Combustion Chemistry Centre, National University of Ireland, Galway, Ireland
| | - Henry J. Curran
- Combustion Chemistry Centre, National University of Ireland, Galway, Ireland
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20
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Mendes J, Zhou CW, Curran HJ. Theoretical and Kinetic Study of the Hydrogen Atom Abstraction Reactions of Esters with HȮ2 Radicals. J Phys Chem A 2013; 117:14006-18. [DOI: 10.1021/jp409133x] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jorge Mendes
- Combustion Chemistry Centre, National University of Ireland, Galway, Ireland
| | - Chong-Wen Zhou
- Combustion Chemistry Centre, National University of Ireland, Galway, Ireland
| | - Henry J. Curran
- Combustion Chemistry Centre, National University of Ireland, Galway, Ireland
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21
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Chen Y, Sakaki S. Theoretical Study of Mononuclear Nickel(I), Nickel(0), Copper(I), and Cobalt(I) Dioxygen Complexes: New Insight into Differences and Similarities in Geometry and Bonding Nature. Inorg Chem 2013; 52:13146-59. [DOI: 10.1021/ic402059b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yue Chen
- Fukui Institute for Fundamental Chemistry, Kyoto University, Takano-Nishihiraki-cho
34-4, Sakyo-ku, Kyoto 606-8103, Japan
| | - Shigeyoshi Sakaki
- Fukui Institute for Fundamental Chemistry, Kyoto University, Takano-Nishihiraki-cho
34-4, Sakyo-ku, Kyoto 606-8103, Japan
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22
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Assessment of theoretical methods for the study of hydrogen abstraction kinetics of global warming gas species during their degradation and byproduct formation (IUPAC Technical Report). PURE APPL CHEM 2013. [DOI: 10.1351/pac-rep-10-02-38] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Global climate change is a major concern as it leads to an increase in the
average temperature of the earth’s atmosphere. The existence and
persistence of some gaseous species in the atmosphere contribute to global
warming. Experimental techniques are used to study the kinetics and degradation
of global warming gases. However, quantum mechanical methods are also useful for
the kinetic and radiative forcing study of global warming species and can
precede experimental investigations. Research has also been targeted to develop
more adapted procedures using ab initio and density functional theory (DFT)
methods. This report provides a global perspective, in simplified manner, of the
theoretical studies of the degradation of gas species in the atmosphere with an
emphasis on the hydrogen abstraction kinetics of global warming gas species
during their degradation and byproduct formation. En route, the results obtained
from these studies are analysed and compared with experimental data where
available. Our analyses indicate that the theoretical predictions are in
agreement with experimental findings but the predicted parameters are dependent
on the method being used. Theoretical methods are used to predict the
thermodynamic parameters of reactions, and, with relevance to this report, the
global warming potential (GWP) index can also be calculated. This report can be
useful for future investigations involving global warming gaseous species while
providing suggestions on how computations can fill in data gaps when
experimental data are unavailable.
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23
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A Hierarchical and Comparative Kinetic Modeling Study of C1
− C2
Hydrocarbon and Oxygenated Fuels. INT J CHEM KINET 2013. [DOI: 10.1002/kin.20802] [Citation(s) in RCA: 773] [Impact Index Per Article: 70.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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24
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Jalan A, Alecu IM, Meana-Pañeda R, Aguilera-Iparraguirre J, Yang KR, Merchant SS, Truhlar DG, Green WH. New pathways for formation of acids and carbonyl products in low-temperature oxidation: the Korcek decomposition of γ-ketohydroperoxides. J Am Chem Soc 2013; 135:11100-14. [PMID: 23862563 DOI: 10.1021/ja4034439] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We present new reaction pathways relevant to low-temperature oxidation in gaseous and condensed phases. The new pathways originate from γ-ketohydroperoxides (KHP), which are well-known products in low-temperature oxidation and are assumed to react only via homolytic O-O dissociation in existing kinetic models. Our ab initio calculations identify new exothermic reactions of KHP forming a cyclic peroxide isomer, which decomposes via novel concerted reactions into carbonyl and carboxylic acid products. Geometries and frequencies of all stationary points are obtained using the M06-2X/MG3S DFT model chemistry, and energies are refined using RCCSD(T)-F12a/cc-pVTZ-F12 single-point calculations. Thermal rate coefficients are computed using variational transition-state theory (VTST) calculations with multidimensional tunneling contributions based on small-curvature tunneling (SCT). These are combined with multistructural partition functions (Q(MS-T)) to obtain direct dynamics multipath (MP-VTST/SCT) gas-phase rate coefficients. For comparison with liquid-phase measurements, solvent effects are included using continuum dielectric solvation models. The predicted rate coefficients are found to be in excellent agreement with experiment when due consideration is made for acid-catalyzed isomerization. This work provides theoretical confirmation of the 30-year-old hypothesis of Korcek and co-workers that KHPs are precursors to carboxylic acid formation, resolving an open problem in the kinetics of liquid-phase autoxidation. The significance of the new pathways in atmospheric chemistry, low-temperature combustion, and oxidation of biological lipids are discussed.
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Affiliation(s)
- Amrit Jalan
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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25
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Chakravarty HK, Fernandes RX. Reaction Kinetics of Hydrogen Abstraction Reactions by Hydroperoxyl Radical from 2-Methyltetrahydrofuran and 2,5-Dimethyltetrahydrofuran. J Phys Chem A 2013; 117:5028-41. [DOI: 10.1021/jp402801c] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Harish Kumar Chakravarty
- Physico Chemical Fundamentals of Combustion, RWTH Aachen University, Templergraben 55, D-52056 Aachen, Germany
| | - Ravi X. Fernandes
- Physico Chemical Fundamentals of Combustion, RWTH Aachen University, Templergraben 55, D-52056 Aachen, Germany
- Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig,
Germany
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26
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Mendes J, Zhou CW, Curran HJ. Theoretical and Kinetic Study of the Reactions of Ketones with HȮ2 Radicals. Part I: Abstraction Reaction Channels. J Phys Chem A 2013; 117:4515-25. [DOI: 10.1021/jp4000413] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jorge Mendes
- Combustion Chemistry Centre, National University of Ireland, Galway, Ireland
| | - Chong-Wen Zhou
- Combustion Chemistry Centre, National University of Ireland, Galway, Ireland
| | - Henry J. Curran
- Combustion Chemistry Centre, National University of Ireland, Galway, Ireland
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27
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Wang BY, Li ZR, Tan NX, Yao Q, Li XY. Interpretation and Application of Reaction Class Transition State Theory for Accurate Calculation of Thermokinetic Parameters Using Isodesmic Reaction Method. J Phys Chem A 2013; 117:3279-91. [DOI: 10.1021/jp400924w] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bi-Yao Wang
- College
of Chemistry and ‡College of Chemical Engineering, Sichuan University, Chengdu 610064, China
| | - Ze-Rong Li
- College
of Chemistry and ‡College of Chemical Engineering, Sichuan University, Chengdu 610064, China
| | - Ning-Xin Tan
- College
of Chemistry and ‡College of Chemical Engineering, Sichuan University, Chengdu 610064, China
| | - Qian Yao
- College
of Chemistry and ‡College of Chemical Engineering, Sichuan University, Chengdu 610064, China
| | - Xiang-Yuan Li
- College
of Chemistry and ‡College of Chemical Engineering, Sichuan University, Chengdu 610064, China
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28
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Zheng J, Seal P, Truhlar DG. Role of conformational structures and torsional anharmonicity in controlling chemical reaction rates and relative yields: butanal + HO2reactions. Chem Sci 2013. [DOI: 10.1039/c2sc21090h] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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29
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Jalan A, Allen JW, Green WH. Chemically activated formation of organic acids in reactions of the Criegee intermediate with aldehydes and ketones. Phys Chem Chem Phys 2013; 15:16841-52. [DOI: 10.1039/c3cp52598h] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Guan Y, Yang B. Kinetic modeling for hydrogen-abstraction reaction of methylcyclohexane with the CH3 radical. Chem Eng Sci 2012. [DOI: 10.1016/j.ces.2012.05.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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31
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Raman S, Carstensen HH. Tree structure for intermolecular hydrogen abstraction from hydrocarbons (C/H) and generic rate constant rules for abstraction by vinyl radical. INT J CHEM KINET 2012. [DOI: 10.1002/kin.20718] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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32
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33
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Hättig C, Klopper W, Köhn A, Tew DP. Explicitly Correlated Electrons in Molecules. Chem Rev 2011; 112:4-74. [DOI: 10.1021/cr200168z] [Citation(s) in RCA: 401] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Christof Hättig
- Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
| | - Wim Klopper
- Abteilung für Theoretische Chemie, Institut für Physikalische Chemie, Karlsruher Institut für Technologie, KIT-Campus Süd, Postfach 6980, D-76049 Karlsruhe, Germany
| | - Andreas Köhn
- Institut für Physikalische Chemie, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - David P. Tew
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
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34
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Ramadhar TR, Batey RA. Accurate prediction of experimental free energy of activation barriers for the aliphatic-Claisen rearrangement through DFT calculations. COMPUT THEOR CHEM 2011. [DOI: 10.1016/j.comptc.2011.08.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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35
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Altarawneh M, Al-Muhtaseb AH, Dlugogorski BZ, Kennedy EM, Mackie JC. Rate constants for hydrogen abstraction reactions by the hydroperoxyl radical from methanol, ethenol, acetaldehyde, toluene, and phenol. J Comput Chem 2011; 32:1725-33. [DOI: 10.1002/jcc.21756] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2010] [Revised: 12/20/2010] [Accepted: 12/23/2010] [Indexed: 11/08/2022]
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36
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Vogiatzis KD, Barnes EC, Klopper W. Interference-corrected explicitly-correlated second-order perturbation theory. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2010.12.065] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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37
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Serinyel Z, Chaumeix N, Black G, Simmie JM, Curran HJ. Experimental and Chemical Kinetic Modeling Study of 3-Pentanone Oxidation. J Phys Chem A 2010; 114:12176-86. [DOI: 10.1021/jp107167f] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Z. Serinyel
- Combustion Chemistry Centre, School of Chemistry, NUI, Galway, Ireland, and ICARE, CNRS, Orléans, France
| | - N. Chaumeix
- Combustion Chemistry Centre, School of Chemistry, NUI, Galway, Ireland, and ICARE, CNRS, Orléans, France
| | - G. Black
- Combustion Chemistry Centre, School of Chemistry, NUI, Galway, Ireland, and ICARE, CNRS, Orléans, France
| | - J. M. Simmie
- Combustion Chemistry Centre, School of Chemistry, NUI, Galway, Ireland, and ICARE, CNRS, Orléans, France
| | - H. J. Curran
- Combustion Chemistry Centre, School of Chemistry, NUI, Galway, Ireland, and ICARE, CNRS, Orléans, France
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38
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Dooley S, Burke MP, Chaos M, Stein Y, Dryer FL, Zhukov VP, Finch O, Simmie JM, Curran HJ. Methyl formate oxidation: Speciation data, laminar burning velocities, ignition delay times, and a validated chemical kinetic model. INT J CHEM KINET 2010. [DOI: 10.1002/kin.20512] [Citation(s) in RCA: 119] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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39
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Black G, Simmie JM. Barrier heights for H-atom abstraction by H*O2 from n-butanol--a simple yet exacting test for model chemistries? J Comput Chem 2010; 31:1236-48. [PMID: 19882733 DOI: 10.1002/jcc.21410] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The barrier heights involved in the abstraction of a hydrogen atom from n-butanol by the hydroperoxyl radical have been computed with both compound (CBS-QB3, CBS-APNO, G3) and coupled cluster methods. In particular, the benchmark computations CCSD(T)/cc-pVTZ//MP2/6-311G(d,p) were used to determine that the barrier heights increase in the order alpha < gamma < beta < delta < OH. Two prereaction hydrogen-bonded complexes are formed, one of which connects the TGt conformer of n-butanol to the alpha and beta transition states and the other connects to the gamma and OH channels from the TGg conformer. Four postreaction complexes were also found which link the transition states to the products, hydrogen peroxide + C(4)H(9)O radical. Abstraction from the terminal delta carbon atom does not involve either a pre or postreaction complex. A number of DFT functionals-B3LYP, BMK, MPWB1K, BB1K, MPW1K, and M05-2X-were tested to see whether the correct ranking could be obtained with computationally less expensive methods. Only the later functional predicts the correct order but requires a basis set of 6-311++G(df,pd) to achieve this. However, the absolute values obtained do not agree that well with the benchmarks; the composite G3 method predicts the correct order and comes closest (< or = 2 kJ, mol (-1)) in absolute numerical terms for H-abstraction from carbon.
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Affiliation(s)
- Gráinne Black
- Combustion Chemistry Centre, National University of Ireland, Galway, Ireland
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40
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Beste A. One-dimensional anharmonic oscillator: Quantum versus classical vibrational partition functions. Chem Phys Lett 2010. [DOI: 10.1016/j.cplett.2010.05.036] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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41
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Huynh LK, Carstensen HH, Dean AM. Detailed Modeling of Low-Temperature Propane Oxidation: 1. The Role of the Propyl + O2 Reaction. J Phys Chem A 2010; 114:6594-607. [DOI: 10.1021/jp1017218] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lam K. Huynh
- Chemical Engineering Department, Colorado School of Mines, Golden, Colorado 80401
| | | | - Anthony M. Dean
- Chemical Engineering Department, Colorado School of Mines, Golden, Colorado 80401
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42
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Metcalfe WK, Simmie JM, Curran HJ. Ab Initio Chemical Kinetics of Methyl Formate Decomposition: The Simplest Model Biodiesel. J Phys Chem A 2010; 114:5478-84. [DOI: 10.1021/jp9120436] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Wayne K. Metcalfe
- Combustion Chemistry Centre, National University of Ireland, Galway, Ireland
| | - John M. Simmie
- Combustion Chemistry Centre, National University of Ireland, Galway, Ireland
| | - Henry J. Curran
- Combustion Chemistry Centre, National University of Ireland, Galway, Ireland
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43
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Hoyermann K, Maarfeld S, Nacke F, Nothdurft J, Olzmann M, Wehmeyer J, Welz O, Zeuch T. Rate coefficients for cycloalkyl + O reactions and product branching in the decomposition of chemically activated cycloalkoxy radicals: an experimental and theoretical study. Phys Chem Chem Phys 2010; 12:8953-67. [DOI: 10.1039/b925920a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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44
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Tew DP, Hättig C, Bachorz RA, Klopper W. Explicitly Correlated Coupled-Cluster Theory. CHALLENGES AND ADVANCES IN COMPUTATIONAL CHEMISTRY AND PHYSICS 2010. [DOI: 10.1007/978-90-481-2885-3_20] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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45
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Alfonso-Prieto M, Biarnés X, Vidossich P, Rovira C. The Molecular Mechanism of the Catalase Reaction. J Am Chem Soc 2009; 131:11751-61. [DOI: 10.1021/ja9018572] [Citation(s) in RCA: 228] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mercedes Alfonso-Prieto
- Laboratori de Simulació Computacional i Modelització (CoSMoLab), Parc Científic de Barcelona, Josep Samitier 1-5, 08028 Barcelona, Spain, Institut de Química Teòrica i Computacional (IQTCUB), and Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluís Companys, 23, 08018 Barcelona, Spain
| | - Xevi Biarnés
- Laboratori de Simulació Computacional i Modelització (CoSMoLab), Parc Científic de Barcelona, Josep Samitier 1-5, 08028 Barcelona, Spain, Institut de Química Teòrica i Computacional (IQTCUB), and Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluís Companys, 23, 08018 Barcelona, Spain
| | - Pietro Vidossich
- Laboratori de Simulació Computacional i Modelització (CoSMoLab), Parc Científic de Barcelona, Josep Samitier 1-5, 08028 Barcelona, Spain, Institut de Química Teòrica i Computacional (IQTCUB), and Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluís Companys, 23, 08018 Barcelona, Spain
| | - Carme Rovira
- Laboratori de Simulació Computacional i Modelització (CoSMoLab), Parc Científic de Barcelona, Josep Samitier 1-5, 08028 Barcelona, Spain, Institut de Química Teòrica i Computacional (IQTCUB), and Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluís Companys, 23, 08018 Barcelona, Spain
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46
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Atomization energies from coupled-cluster calculations augmented with explicitly-correlated perturbation theory. Chem Phys 2009. [DOI: 10.1016/j.chemphys.2008.11.013] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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