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Naskar S, Nandi G, Ghosh T. An examination of the reaction pathways of XO + O → X + O2 (X = Br and I). COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2022.113864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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2
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Theoretical investigation on the reaction mechanism of ozone with chlorine, bromine and iodine atoms. COMPUT THEOR CHEM 2021. [DOI: 10.1016/j.comptc.2021.113410] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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A theoretical study on the destruction of typical biomass tar components (toluene, phenol and naphthalene) by OH radical. J INDIAN CHEM SOC 2021. [DOI: 10.1016/j.jics.2021.100015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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4
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Xu E, Li S. The externally corrected coupled cluster approach with four- and five-body clusters from the CASSCF wave function. J Chem Phys 2015; 142:094119. [DOI: 10.1063/1.4913977] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Enhua Xu
- School of Chemistry and Chemical Engineering, Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Institute of Theoretical and Computational Chemistry, Nanjing University, Nanjing 210093, People’s Republic of China
| | - Shuhua Li
- School of Chemistry and Chemical Engineering, Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Institute of Theoretical and Computational Chemistry, Nanjing University, Nanjing 210093, People’s Republic of China
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5
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Menéndez M, Castillo JF, Martínez-Haya B, Aoiz FJ. The Cl + O3 reaction: a detailed QCT simulation of molecular beam experiments. Phys Chem Chem Phys 2015; 17:25471-82. [DOI: 10.1039/c5cp04323a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
QCT calculations have been carried out to determine angle–velocity differential cross-sections to simulate the results of molecular beam experiments.
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Affiliation(s)
- M. Menéndez
- Departamento de Qumíca Física I
- Facultad de CC. Qumícas
- Universidad Complutense de Madrid
- 28040 Madrid
- Spain
| | - J. F. Castillo
- Departamento de Qumíca Física I
- Facultad de CC. Qumícas
- Universidad Complutense de Madrid
- 28040 Madrid
- Spain
| | - B. Martínez-Haya
- Department of Physical
- Chemical and Natural Systems
- Universidad Pablo de Olavide
- ES-41013 Seville
- Spain
| | - F. J. Aoiz
- Departamento de Qumíca Física I
- Facultad de CC. Qumícas
- Universidad Complutense de Madrid
- 28040 Madrid
- Spain
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6
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Gerber RB, Shemesh D, Varner ME, Kalinowski J, Hirshberg B. Ab initio and semi-empirical Molecular Dynamics simulations of chemical reactions in isolated molecules and in clusters. Phys Chem Chem Phys 2014; 16:9760-75. [DOI: 10.1039/c3cp55239j] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Recent progress in “on-the-fly” trajectory simulations of molecular reactions, using different electronic structure methods is discussed, with analysis of the insights that such calculations can provide and of the strengths and limitations of the algorithms available.
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Affiliation(s)
- R. B. Gerber
- Institute of Chemistry and The Fritz Haber Research Center
- The Hebrew University of Jerusalem
- Jerusalem 91904, Israel
- Department of Chemistry
- University of California
| | - D. Shemesh
- Institute of Chemistry and The Fritz Haber Research Center
- The Hebrew University of Jerusalem
- Jerusalem 91904, Israel
| | - M. E. Varner
- Department of Chemistry
- University of California
- Irvine 92697, USA
| | - J. Kalinowski
- Department of Chemistry
- University of Helsinki
- , Finland
| | - B. Hirshberg
- Institute of Chemistry and The Fritz Haber Research Center
- The Hebrew University of Jerusalem
- Jerusalem 91904, Israel
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7
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de Tudela RP, Suleimanov YV, Menéndez M, Castillo JF, Aoiz FJ. A ring polymer molecular dynamics study of the Cl + O3 reaction. Phys Chem Chem Phys 2014; 16:2920-7. [DOI: 10.1039/c3cp54405b] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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8
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Sandhiya L, Kolandaivel P, Senthilkumar K. Depletion of atmospheric ozone by nitrogen dioxide: a bifurcated reaction pathway. Theor Chem Acc 2013. [DOI: 10.1007/s00214-013-1382-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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9
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Wen Z, Wang Z, Xu J, Liu Y, Cen K. Quantum chemistry study on the destruction mechanism of 2,3,7,8-TCDD by OH and O(3) radicals. CHEMOSPHERE 2013; 92:293-298. [PMID: 23642639 DOI: 10.1016/j.chemosphere.2013.03.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Revised: 03/04/2013] [Accepted: 03/16/2013] [Indexed: 06/02/2023]
Abstract
Due to its fundamental importance, the destruction mechanism of the dioxins, as exemplified by 2,3,7,8-TCDD, by OH and O3 radicals was investigated in detail employing Quantum Chemical Calculations in this paper. Theoretical results showed that, OH radical degraded 2,3,7,8-TCDD via substituting chlorine at the 2,3,7,8 positions, while O3 radical degraded 2,3,7,8-TCDD via destructing CC bonds and aromatic ring. Based on the mechanism study, the kinetic parameters of the reactions were also calculated by Transition State Theory. By comparing, the rate constant of the 2,3,7,8-TCDD destruction by OH was found to be much higher than that by O3, which indicated that OH radical have much stronger ability to degrade 2,3,7,8-TCDD than O3 radical. This finding was consistent with the standard electrode potential of OH and O3 radical. The theoretical results in this paper can be believed to supply important theory basis for the further investigation on dioxins removal by using the catalytic oxidation technology.
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Affiliation(s)
- Zhengcheng Wen
- College of Science, Hangzhou Dianzi University, Hangzhou 310018, China.
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Kalinowski J, Räsänen M, Gerber RB. Mechanism and electronic transition in the reaction: On the fly dynamics simulations with multi-reference potentials. Chem Phys Lett 2012. [DOI: 10.1016/j.cplett.2012.03.068] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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11
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Castillo JF, Aoiz FJ, Martínez-Haya B. Theoretical study of the dynamics of Cl + O3 reaction I. Ab initio potential energy surface and quasiclassical trajectory results. Phys Chem Chem Phys 2011; 13:8537-48. [DOI: 10.1039/c0cp02793f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Peiró-Garcı́a J, Nebot-Gil I. An ab initio study on the mechanism of the F+O3→FO+O2 reaction: comparative reactivity study along the isoelectronic NH2, OH and F radicals series. Chem Phys Lett 2004. [DOI: 10.1016/j.cplett.2004.05.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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13
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Peiró-García J, Nebot-Gil I. Ab initio study of the mechanism of the atmospheric reaction: NO2 + O3 --> NO3 + O2. J Comput Chem 2003; 24:1657-63. [PMID: 12926008 DOI: 10.1002/jcc.10299] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The atmospheric reaction NO2 + O3 --> NO3 + O2 (1) has been investigated theoretically by using the MP2, G2, G2Q, QCISD, QCISD(T), CCSD(T), CASSCF, and CASPT2 methods with various basis sets. The results show that the reaction pathway can be divided in two different parts at the MP2 level of theory. At this level, the mechanism proceeds along two transition states (TS1 and TS2) separated by an intermediate, designated as A. However, when the single-reference higher correlated QCISD methodology has been employed, the minimum A and the transition state TS2 are not found on the hypersurface of potential energy, which confirms a direct reaction mechanism. Single-reference high correlated and multiconfigurational methods consistently predict the barrier height of reaction (1) to be within the range 2.5-6.1 kcal mol(-1), in reasonable agreement with experimental data. The calculated reaction enthalpy is -24.6 kcal mol(-1) and the reaction rate calculated at the highest CASPT2 level, of k = 6.9 x 10(-18) cm(3) molecule(-1) s(-1). Both results can be regarded also as accurate predictions of the methodology employed in this article.
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Affiliation(s)
- Julio Peiró-García
- Facultad de Química, Universidad de Valencia, c/ Dr. Moliner, 50, E-46100 Burjasot, Valencia, Spain
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Peiró-García J, Nebot-Gil I. Ab initio study on the mechanism of the atmospheric reaction OH + O3-->HO2 + O2. Chemphyschem 2003; 4:843-7. [PMID: 12961982 DOI: 10.1002/cphc.200300654] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The atmospheric reaction (1) OH + O3-->HO2 + O2 was investigated theoretically by using MP2, QCISD, QCISD(T), and CCSD(T) methods with various basis sets. At the highest level of theory, namely, QCISD, the reaction is direct, with only one transition state between reactants and products. However, at the MP2 level, the reaction proceeds through a two-step mechanism and shows two transition states, TS1 and TS2, separated by an intermediate, Int. The different methodologies employed in this paper consistently predict the barrier height of reaction (1) to be within the range 2.16-5.11 kcal mol-1, somewhat higher than the experimental value of 2.0 kcal mol-1.
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Affiliation(s)
- Julio Peiró-García
- Instituto de Ciencia Molecular, Departamento de Química Física Facultad de Química, Universidad de Valencia c/Dr. Moliner, 50, 46100, Burjasot, Spain
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Peiró-García J, Ramírez-Ramírez VM, Nebot-Gil I. A theoretical ab initio study on the H(2)NO + O(3) reaction. J Comput Chem 2003; 24:1321-8. [PMID: 12827673 DOI: 10.1002/jcc.10287] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The deviation of the NH(2) pseudo-first-order decay Arrhenius plots of the NH(2) + O(3) reaction at high ozone pressures measured by experimentalists, has been attributed to the regeneration of NH(2) radicals due to the subsequent reactions of the products of this reaction with ozone. Although these products have not yet been characterized experimentally, the radical H(2)NO has been postulated, because it can regenerate NH(2) radicals through the reactions: H(2)NO + O(3) --> NH(2) + O(2) and H(2)NO + O(3) --> HNO + OH + O(2). With the purpose of providing a reasonable explanation from a theoretical point of view to the kinetic observed behaviour of the NH(2) + O(3) system, we have carried ab initio electronic structure calculations on both H(2)NO + O(3) possible reactions. The results obtained in this article, however, predict that of both reactions proposed, only the H(2)NO + O(3) --> NH(2) + O(2) reaction would regenerate indeed NH(2) radicals, explaining thus the deviation of the NH(2) pseudo-first-order decay observed experimentally.
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Affiliation(s)
- Julio Peiró-García
- Departamento de Química Física, Facultad de Química, Universidad de Valencia, c/ Dr Moliner, 50, E-46100, Burjasot (Valencia), Spain
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Peiró-García J, Nebot-Gil I, Merchán M. An Ab initio study on the mechanism of the atmospheric reaction NH2 + O3-->H2NO + O2. Chemphyschem 2003; 4:366-72. [PMID: 12728551 DOI: 10.1002/cphc.200390063] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The atmospheric reaction NH2 + O3-->H2NO + O2 has been investigated theoretically by using MP2, QCISD, QCISD(T), CCSD(T), CASSCF, and CASPT2 methods with various basis sets. At the MP2 level of theory, the hypersurface of the potential energy (HPES) shows a two step reaction mechanism. Therefore, the mechanism proceeds along two transition states (TS1 and TS2), separated by an intermediate designated as Int. However, when the single-reference higher correlated QCISD and the multiconfigurational CASSCF methodologies have been employed, the minimum structure Int and TS2 are not found on the HPES, which thus confirms a direct reaction mechanism. Single-reference high correlated and multiconfigurational methods consistently predict the barrier height of the reaction to be within the range of 3.9 to 6.6 kcal mol-1, which is somewhat higher than the experimental value. The calculated reaction enthalpy is -67.7 kcal mol-1.
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Affiliation(s)
- Julio Peiró-García
- Instituto de Ciencia Molecular Departamento de Química Física Facultad de Química, Universidad de Valencia, c/Dr. Moliner, 50, 46100, Burjasot, Spain
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Peiró-García J, Nebot-Gil I. Ab Initio Study of the Mechanism and Thermochemistry of the Atmospheric Reaction NO + O3 → NO2 + O2. J Phys Chem A 2002. [DOI: 10.1021/jp020422q] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Julio Peiró-García
- Instituto de Ciencia Molecular, Departamento de Química Física, Facultad de Química, Universidad de Valencia, c/ Dr. Moliner, 50, E-46100, Burjasot (Valencia), Spain
| | - Ignacio Nebot-Gil
- Instituto de Ciencia Molecular, Departamento de Química Física, Facultad de Química, Universidad de Valencia, c/ Dr. Moliner, 50, E-46100, Burjasot (Valencia), Spain
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Tyrrell J, Kar T, Bartolotti LJ. A Study of the Mechanism of the Reaction between Ozone and the Chlorine Atom Using Density Functional Theory. J Phys Chem A 2001. [DOI: 10.1021/jp001868e] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- James Tyrrell
- Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, Carbondale, Illinois 62901
| | - Tapas Kar
- Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, Carbondale, Illinois 62901
| | - Libero J. Bartolotti
- North Carolina Supercomputing Center, 3021 Cornwallis Rd., Research Triangle Park, North Carolina 27709
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Ab initio study of the reaction mechanism of singlet and triplet N2O and their intersystem crossing. Chem Phys 2000. [DOI: 10.1016/s0301-0104(00)00212-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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