1
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Bao Y, Liu X, He Z, Shi J. Theoretical study of hydrogen abstraction by HO 2 radicals from primary straight chain amines C nH 2n+1-NH 2 ( n = 1-4). Phys Chem Chem Phys 2023; 25:19943-19951. [PMID: 37458728 DOI: 10.1039/d3cp01676e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
Hydrogen abstraction reactions by HO2 radicals from four primary amines including methylamine (MA), ethylamine (EA), n-propylamine (PA), and n-butylamine (BA), are investigated and the effect of the functional group on rate constants at different reaction sites is examined. A hybrid functional BH&HLYP coupled with cc-pVTZ as the basis set is utilized to determine geometry optimizations, frequencies, and connections between transition states and corresponding local minima. By comparing the reaction energies obtained by several density functional theory methods to those obtained using the gold-standard CCSD(T)/CBS(T-Q) method, the M08-HX/maug-cc-pVTZ combination is identified as the best suitable method with a mean unsigned deviation of 0.81 kcal mol-1. This method is then applied to construct the potential energy surface for all the reaction systems. High-pressure limit rate constants at 500-2500 K are calculated through variation transition state theory and conventional transition state theory, including a one-dimensional hindered rotor treatment and asymmetrical Eckart tunneling correction. The branching ratio analysis suggests that the hydrogen abstraction at the C site adjacent to the NH2 functional group (α reaction site) dominates the reactions. Linear Bell-Evans-Polanyi and Bell-Evans correlations are observed for the hydrogen abstractions at the C reaction sites. Furthermore, a scheme to estimate the rate constants for the CnH2n+1-NH2 + HO2 reaction system is presented.
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Affiliation(s)
- Yi Bao
- SiChuan SanLian New Materials Co.,Ltd, China
| | - Xiaoyi Liu
- Chengdu Science and Technology Development Center of CAEP, Chengdu, Sichuan 610207, China.
| | - Zezhou He
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China
| | - Jinchun Shi
- Chengdu Science and Technology Development Center of CAEP, Chengdu, Sichuan 610207, China.
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2
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Douroudgari H, Zarepour H, Vahedpour M, Jaberi M, Zarepour M. The atmospheric relevance of primary alcohols and imidogen reactions. Sci Rep 2023; 13:9150. [PMID: 37277419 DOI: 10.1038/s41598-023-35473-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 05/18/2023] [Indexed: 06/07/2023] Open
Abstract
Organic alcohols as very volatile compounds play a crucial role in the air quality of the atmosphere. So, the removal processes of such compounds are an important atmospheric challenge. The main goal of this research is to discover the atmospheric relevance of degradation paths of linear alcohols by imidogen with the aid of simulation by quantum mechanical (QM) methods. To this end, we combine broad mechanistic and kinetic results to get more accurate information and to have a deeper insight into the behavior of the designed reactions. Thus, the main and necessary reaction pathways are explored by well-behaved QM methods for complete elucidation of the studying gaseous reactions. Moreover, the potential energy surfaces as a main factor are computed for easier judging of the most probable pathways in the simulated reactions. Our attempt to find the occurrence of the considered reactions in the atmospheric conditions is completed by precisely evaluating the rate constants of all elementary reactions. All of the computed bimolecular rate constants have a positive dependency on both temperature and pressure. The kinetic results show that H-abstraction from the α carbon is dominant relative to the other sites. Finally, by the results of this study, we conclude that at moderate temperatures and pressures primary alcohols can degrade with imidogen, so they can get atmospheric relevance.
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Affiliation(s)
- Hamed Douroudgari
- Department of Chemistry, University of Zanjan, PO Box 38791-45371, Zanjan, Iran.
| | - Hadi Zarepour
- Department of Chemistry, University of Zanjan, PO Box 38791-45371, Zanjan, Iran
| | - Morteza Vahedpour
- Department of Chemistry, University of Zanjan, PO Box 38791-45371, Zanjan, Iran.
| | - Mahdi Jaberi
- Department of Chemistry, University of Zanjan, PO Box 38791-45371, Zanjan, Iran
| | - Mahdi Zarepour
- Department of Chemistry, University of Zanjan, PO Box 38791-45371, Zanjan, Iran
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3
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Tang Y, Lu C, Han Z, Zhai F, Fu Z. Theoretical investigations on mechanisms and kinetics of OH + (CH3)2NNH2 reaction in the atmosphere. Theor Chem Acc 2019. [DOI: 10.1007/s00214-019-2433-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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4
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Shi J, Shang Y, Du S, Luo S. Hydrogen abstraction from CH3NH2, (CH3)2NH, and (CH3)3N by HȮ2 radicals: A theoretical study. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2017.11.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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5
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Asgharzade S, Vahedpour M, Douroudgari H. Theoretical study on the mechanism of the N2H4 plus O2 reaction on the singlet and triplet potential energy surfaces. COMPUT THEOR CHEM 2017. [DOI: 10.1016/j.comptc.2017.02.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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6
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7
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Kinetics, mechanism and thermodynamics of reactions of hydrazine with CH3 and OOH radicals. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-015-2080-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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8
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Spada RFK, Ferrão LFA, Roberto-Neto O, Lischka H, Machado FBC. Thermochemical and Kinetics of Hydrazine Dehydrogenation by an Oxygen Atom in Hydrazine-Rich Systems: A Dimer Model. J Phys Chem A 2015; 119:12607-14. [DOI: 10.1021/acs.jpca.5b09655] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rene F. K. Spada
- Departamento
de Química, Instituto Tecnológico de Aeronáutica, São José dos Campos, 12.228-900 São Paulo, Brazil
| | - Luiz F. A. Ferrão
- Departamento
de Química, Instituto Tecnológico de Aeronáutica, São José dos Campos, 12.228-900 São Paulo, Brazil
| | - Orlando Roberto-Neto
- Divisão
de Aerotermodinâmica e Hipersônica, Instituto de Estudos Avançados, São José dos Campos, 12.228-001 São Paulo, Brazil
| | - Hans Lischka
- Department
of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
- Institute
for Theoretical Chemistry, University of Vienna, A-1090 Vienna, Austria
- School
of Pharmaceutical Sciences and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Francisco B. C. Machado
- Departamento
de Química, Instituto Tecnológico de Aeronáutica, São José dos Campos, 12.228-900 São Paulo, Brazil
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9
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Spada RFK, Ferrão LFA, Rocha RJ, Iha K, Rocco JAFF, Roberto-Neto O, Lischka H, Machado FBC. Hydrogen Abstraction from the Hydrazine Molecule by an Oxygen Atom. J Phys Chem A 2014; 119:1628-35. [DOI: 10.1021/jp507784n] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rene F. K. Spada
- Departamento
de Química, Instituto Tecnológico de Aeronáutica, São José
dos Campos, 12.228-900 São
Paulo, Brazil
- Departamento
de Física, Instituto Tecnológico de Aeronáutica, São José
dos Campos, 12.228-900 São
Paulo, Brazil
| | - Luiz F. A. Ferrão
- Departamento
de Química, Instituto Tecnológico de Aeronáutica, São José
dos Campos, 12.228-900 São
Paulo, Brazil
| | - Roberta J. Rocha
- Departamento
de Química, Instituto Tecnológico de Aeronáutica, São José
dos Campos, 12.228-900 São
Paulo, Brazil
| | - Koshun Iha
- Departamento
de Química, Instituto Tecnológico de Aeronáutica, São José
dos Campos, 12.228-900 São
Paulo, Brazil
| | - José A. F. F. Rocco
- Departamento
de Química, Instituto Tecnológico de Aeronáutica, São José
dos Campos, 12.228-900 São
Paulo, Brazil
| | - Orlando Roberto-Neto
- Divisão
de Aerotermodinâmica e Hipersônica, Instituto de Estudos Avançados, São José dos Campos, 12.228-001 São Paulo, Brazil
| | - Hans Lischka
- Department
of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
- Institute
for Theoretical Chemistry, University of Vienna, A-1090 Vienna, Austria
| | - Francisco B. C. Machado
- Departamento
de Química, Instituto Tecnológico de Aeronáutica, São José
dos Campos, 12.228-900 São
Paulo, Brazil
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10
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Valadbeigi Y, Farrokhpour H. Kinetics, mechanism and thermodynamics of reactions of CH3NHNH2 with OOH. Mol Phys 2014. [DOI: 10.1080/00268976.2014.960497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Younes Valadbeigi
- Department of Chemistry, Isfahan University of Technology, Isfahan, Iran
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11
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Wang L, Wang N, He H, Zhang J. Theoretical study on the reactions of CH3NHNH2 with ground state O(3P) atom and excited state O(1D) atom. Mol Phys 2013. [DOI: 10.1080/00268976.2013.846484] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Li Wang
- Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Na Wang
- Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Hongqing He
- Wuhan Center for Magnetic Resonance, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, P.R. China
| | - Jinglai Zhang
- Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P.R. China
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12
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Wen J, Tian Y, He H, Wang L. Theoretical study on the reaction of atomic oxygen with unsymmetrical dimethylhydrazine. CAN J CHEM 2013. [DOI: 10.1139/cjc-2012-0418] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A dual-level direct dynamics method is employed to study the reaction mechanism of (CH3)2NNH2 (unsymmetrical dimethylhydrazine) with the oxygen (O) atom. The geometries and frequencies of all the stationary points are optimized at the MPW1K/6-311G (d, p) level, and the energy profiles are further refined by the interpolated single-point energies (ISPE) method at the BMC-CCSD level of theory. The rate constants of the O atom with (CH3)2NNH2 are evaluated over a wide temperature range of 200–2000 K by using the canonical variational transition-state theory (CVT) with the small curvature tunneling correction (SCT). The agreement between the theoretical and experimental rate constants is good around room temperature. The channels of H abstraction from the -NH2 position favor temperatures below 1200 K. With increasing temperature, contributions from other channels should be taken into account. The reactivity of N2H4, CH3NHNH2, and (CH3)2NNH2 toward atomic O is compared to explore the methylation effect.
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Affiliation(s)
- Jinmiao Wen
- Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Yafang Tian
- Zhengzhou Railway Vocational and Technical College, Zhengzhou, Henan 450052, P.R. China
| | - Hongqing He
- Wuhan Center for Magnetic Resonance, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, P.R. China
| | - Li Wang
- Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P.R. China
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13
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Wang L, Zhao Y, Wen J, Zhang J. Mechanisms and kinetics of hydrogen abstraction of methylhydrazine and deuterated methylhydrazine with H/D atoms. Theor Chem Acc 2012. [DOI: 10.1007/s00214-012-1321-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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14
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Troya D, Mosch M, O’Neill KA. Ab Initio and Dynamics Study of the O(3P) + NH3 and O(3P) + N2H4 Reactions at Hyperthermal Collision Energies. J Phys Chem A 2009; 113:13863-70. [DOI: 10.1021/jp9072747] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Diego Troya
- Department of Chemistry, Virginia Tech, 107 Davidson Hall, Blacksburg Virginia 24061-0212
| | - Marianne Mosch
- Department of Chemistry, Virginia Tech, 107 Davidson Hall, Blacksburg Virginia 24061-0212
| | - Kayleigh A. O’Neill
- Department of Chemistry, Virginia Tech, 107 Davidson Hall, Blacksburg Virginia 24061-0212
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15
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Tang Y, Sun J, Jia X, Sun H, Pan X, Wang R. Mechanistic and kinetic investigations of N 2H 4+ OH reaction. J Comput Chem 2009; 31:1520-7. [DOI: 10.1002/jcc.21438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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16
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Li QS, Zhang X. Direct dynamics study on the hydrogen abstraction reactions N2H4+R→N2H3+RH (R=NH2,CH3). J Chem Phys 2006; 125:64304. [PMID: 16942283 DOI: 10.1063/1.2217949] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We present a direct ab initio dynamics study on the hydrogen abstraction reactions N(2)H(4)+R-->N(2)H(3)+RH (R=NH(2),CH(3)), which are predicted to have six possible reaction channels for NH(2) abstraction and four for CH(3) abstraction caused by the different N(2)H(4) isomers and various attacking orientations of foreign radical to N(2)H(4). The structures and frequencies at the stationary points and the points along the minimum energy paths (MEPs) of all reaction channels are obtained at the UMP2(full)6-31+G(d,p) level of theory. Energetic information of stationary points and the points along the MEPs is further refined by means of MC-QCISD method. The rate constants of these channels are calculated using the improved canonical variational transition-state theory with the small-curvature tunneling correction (ICVT/SCT) method. The calculated results show that the favorable reaction channels are channels (n1) and (n4) as well as (c1) and (c3) (refer to Scheme 1) in the whole temperature range. The total ICVT/SCT rate constants of all channels for the two reactions at the MC-QCISDUMP2(full)6-31+G(d,p) level are both in good agreement with the available experimental data, and corresponding three-parameter expressions of k(ICVTSCT) in 220-3000 K are fitted as 6.46 x 10(-15)(T298)(3.60) exp(-386T) cm(3) mol(-1) s(-1) for NH(2) abstraction and 1.04 x 10(-14)(T298)(4.00) exp(-2037T) cm(3) mol(-1) s(-1) for CH(3) abstraction. Additionally, the long range interaction between the H atom of X-H bond in foreign radicals and the lone pair on the nonreactive N atom of the transition states is further discussed to explain the various transition-state numbers of the two similar hydrogen abstraction reactions.
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Affiliation(s)
- Qian Shu Li
- The Institute for Chemical Physics, Beijing Institute of Technology, Beijing 100081, People's Republic of China.
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Vaghjiani GL. 248-nm Laser Photolysis of CHBr 3/O-Atom Mixtures: Kinetic Evidence for UV CO(A) Chemiluminescence in the Reaction of Methylidyne Radicals with Atomic Oxygen. J Phys Chem A 2005; 109:2197-206. [PMID: 16838991 DOI: 10.1021/jp046172q] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The 4th positive and Cameron band emissions from electronically excited CO have been observed for the first time in 248-nm pulsed laser photolysis of a trace amount of CHBr(3) vapor in an excess of O atoms. O atoms were produced by dissociation of N(2)O (or O(2)) in a cw-microwave discharge cavity in 2.0 Torr of He at 298 K. The CO emission intensity in these bands showed a quadratic dependence on the laser fluence employed. Temporal profiles of the CO(A) and other excited-state products that formed in the photoproduced precursor + O-atom reactions were measured by recording their time-resolved chemiluminescence in discrete vibronic bands. The CO 4th positive transition (A(1)Pi, v' = 0 --> X(1)Sigma(+), v' ' = 2) near 165.7 nm was monitored in this work to deduce the pseudo-first-order decay kinetics of the CO(A) chemiluminescence in the presence of various added substrates (CH(4), NO, N(2)O, H(2), and O(2)). From this, the second-order rate coefficient values were determined for reactions of these substrates with the photoproduced precursors. The measured reactivity trends suggest that the prominent precursors responsible for the CO(A) chemiluminescence are the methylidyne radicals, CH(X(2)Pi) and CH(a(4)Sigma(-)), whose production requires the absorption of at least 2 laser photons by the photolysis mixture. The O-atom reactions with brominated precursors (CBr, CHBr, and CBr(2)), which also form in the photolysis, are shown to play a minor role in the production of the CO(A or a) chemiluminescence. However, the CBr(2) + O-atom reaction was identified as a significant source for the 289.9-nm Br(2) chemiluminescence that was also observed in this work. The 282.2-nm OH and the 336.2-nm NH chemiluminescences were also monitored to deduce the kinetics of CH(X(2)Pi) and CH(a(4)Sigma(-)) reactions when excess O(2) and NO were present.
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Affiliation(s)
- Ghanshyam L Vaghjiani
- ERC, Inc., Air Force Research Laboratory, AFRL/PRSA, 10 E Saturn Blvd, Edwards AFB, California 93524, USA.
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18
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Vaghjiani GL. Kinetics of CH radicals with O2: Evidence for CO chemiluminescence in the gas phase reaction. J Chem Phys 2003. [DOI: 10.1063/1.1599346] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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