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Budenholzer FE, Lin MC. Differential Cross Sections for the F + H2Reaction: A Comparison of Classical Trajectory Results for Two Potential Energy Surfaces. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.199700098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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2
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Talaat H, Moussa AH, Shalaby M, Sedik EWS, Kamal MTED. Quantum dynamics of heavy light heavy reactions: Application to (F + CH4 → FCH3 + H) reaction. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2013. [DOI: 10.1134/s0036024413030369] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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3
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Rusin LY, Sevryuk MB, Toennies JP. The special features of rotationally resolved differential cross sections of the F + H2 reaction at small scattering angles. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2007. [DOI: 10.1134/s199079310705003x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Abstract
This paper is an overview of the theory of reactive scattering, with emphasis on fully quantum mechanical theories that have been developed to describe simple chemical reactions, especially atom-diatom reactions. We also describe related quasiclassical trajectory applications, and in all of this review the emphasis is on methods and applications concerned with state-resolved reaction dynamics. The review first provides an overview of the development of the theory, including a discussion of computational methods based on coupled channel calculations, variational methods, and wave packet methods. Choices of coordinates, including the use of hyperspherical coordinates are discussed, as are basis set and discrete variational representations. The review also summarizes a number of applications that have been performed, especially the two most comprehensively studied systems, H+H2 and F+H2, along with brief discussions of a large number of other systems, including other hydrogen atom transfer reactions, insertion reactions, electronically nonadiabatic reactions, and reactions involving four or more atoms. For each reaction we describe the method used and important new physical insight extracted from the results.
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Affiliation(s)
- Wenfang Hu
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, USA
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Abstract
Experiments are reviewed in which key problems in chemical dynamics are probed by experiments based on photodetachment and/or photoexcitation of negative ions. Examples include transition state spectroscopy of biomolecular reactions, spectroscopy of open shell van der Waals complexes, photodissociation of free radicals, and time-resolved dynamics in clusters. The experimental methods used in these investigations are described along with representative systems that have been studied.
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Affiliation(s)
- Daniel M Neumark
- Department of Chemistry,University of California, Berkeley, California 94720, USA.
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Deskevich MP, Hayes MY, Takahashi K, Skodje RT, Nesbitt DJ. Multireference configuration interaction calculations for the F(P2)+HCl→HF+Cl(P2) reaction: A correlation scaled ground state (1A′2) potential energy surface. J Chem Phys 2006; 124:224303. [PMID: 16784270 DOI: 10.1063/1.2192505] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
This paper presents a new ground state (1 (2)A(')) electronic potential energy surface for the F((2)P)+HCl-->HF+Cl((2)P) reaction. The ab initio calculations are done at the multireference configuration interaction+Davidson correction (MRCI+Q) level of theory by complete basis set extrapolation of the aug-cc-pVnZ (n=2,3,4) energies. Due to low-lying charge transfer states in the transition state region, the molecular orbitals are obtained by six-state dynamically weighted multichannel self-consistent field methods. Additional perturbative refinement of the energies is achieved by implementing simple one-parameter correlation energy scaling to reproduce the experimental exothermicity (DeltaE=-33.06 kcalmol) for the reaction. Ab initio points are fitted to an analytical function based on sum of two- and three-body contributions, yielding a rms deviation of <0.3 kcalmol for all geometries below 10 kcalmol above the barrier. Of particular relevance to nonadiabatic dynamics, the calculations show significant multireference character in the transition state region, which is located 3.8 kcalmol with respect to F+HCl reactants and features a strongly bent F-H-Cl transition state geometry (theta approximately 123.5 degrees ). Finally, the surface also exhibits two conical intersection seams that are energetically accessible at low collision energies. These seams arise naturally from allowed crossings in the C(infinityv) linear configuration that become avoided in C(s) bent configurations of both the reactant and product, and should be a hallmark of all X-H-Y atom transfer reaction dynamics between ((2)P) halogen atoms.
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Affiliation(s)
- Michael P Deskevich
- JILA, National Institute of Standards and Technology, University of Colorado, Boulder, Colorado 80309, USA
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Rusin LY, Sevryuk MB, Toennies JP. Comparison of experimental time-of-flight spectra of the HF products from the F+H2 reaction with exact quantum mechanical calculations. J Chem Phys 2005; 122:134314. [PMID: 15847472 DOI: 10.1063/1.1873772] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
High resolution HF product time-of-flight spectra measured for the reactive scattering of F atoms from n-H2(p-H2) molecules at collision energies between 69 and 81 meV are compared with exact coupled-channel quantum mechanical calculations based on the Stark-Werner ab initio ground state potential energy surface. Excellent agreement between the experimental and computed rotational distributions is found for the HF product vibrational states v'=1 and v'=2. For the v'=3 vibrational state the agreement, however, is less satisfactory, especially for the reaction with p-H2. The results for v'=1 and v'=2 confirm that the reaction dynamics for these product states is accurately described by the ground electronic state 1 (2)A' potential energy surface. The deviations for HF(v'=3, j' > or =2) are attributed to an enhancement of the reaction resulting from the 25% fraction of excited ((2)P(12)) fluorine atoms in the reactant beam.
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Affiliation(s)
- Lev Yu Rusin
- Institute of Energy Problems of Chemical Physics, Russia Academy of Sciences, Leninskiî prospect 38, Building 2, Moscow 119334, Russia.
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8
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Benchmark rate constants by the hyperquantization algorithm. The F+H2 reaction for various potential energy surfaces: features of the entrance channel and of the transition state, and low temperature reactivity. Chem Phys 2005. [DOI: 10.1016/j.chemphys.2004.03.027] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Neumark DM. Probing the transition state with negative ion photodetachment: experiment and theory. Phys Chem Chem Phys 2005; 7:433-42. [DOI: 10.1039/b417886f] [Citation(s) in RCA: 98] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Abstract
This review discusses recent quantum scattering calculations on bimolecular chemical reactions in the gas phase. This theory provides detailed and accurate predictions on the dynamics and kinetics of reactions containing three atoms. In addition, the method can now be applied to reactions involving polyatomic molecules. Results obtained with both time-independent and time-dependent quantum dynamical methods are described. The review emphasises the recent development in time-dependent wave packet theories and the applications of reduced dimensionality approaches for treating polyatomic reactions. Calculations on over 40 different reactions are described.
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Althorpe SC. Plane wave packet study of direct and time-delayed mechanisms in the F+HD reaction. Chem Phys Lett 2003. [DOI: 10.1016/s0009-2614(03)00105-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Harper WW, Nizkorodov SA, Nesbitt DJ. Reactive scattering of F+HD→HF(v,J)+D: HF(v,J) nascent product state distributions and evidence for quantum transition state resonances. J Chem Phys 2002. [DOI: 10.1063/1.1456507] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Lukeš V, Vrábel I, Laurinc V, Biskupič S. Ab Initio Study of the HF(Χ )−H(2S) van der Waals Complex. J Phys Chem A 2001. [DOI: 10.1021/jp010583e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Vladimír Lukeš
- Department of Chemical Physics, Slovak University of Technology, Radlinského 9, SK-81 237 Bratislava, Slovak Republic, Institute of Theoretical Chemistry and Molecular Biology, University of Vienna, Währingerstrasse 17, AT-1100 Vienna, Austria, and Department of Physical Chemistry, Slovak University of Technology, Radlinského 9, SK-81 237 Bratislava, Slovak Republic
| | - Imrich Vrábel
- Department of Chemical Physics, Slovak University of Technology, Radlinského 9, SK-81 237 Bratislava, Slovak Republic, Institute of Theoretical Chemistry and Molecular Biology, University of Vienna, Währingerstrasse 17, AT-1100 Vienna, Austria, and Department of Physical Chemistry, Slovak University of Technology, Radlinského 9, SK-81 237 Bratislava, Slovak Republic
| | - Viliam Laurinc
- Department of Chemical Physics, Slovak University of Technology, Radlinského 9, SK-81 237 Bratislava, Slovak Republic, Institute of Theoretical Chemistry and Molecular Biology, University of Vienna, Währingerstrasse 17, AT-1100 Vienna, Austria, and Department of Physical Chemistry, Slovak University of Technology, Radlinského 9, SK-81 237 Bratislava, Slovak Republic
| | - Stanislav Biskupič
- Department of Chemical Physics, Slovak University of Technology, Radlinského 9, SK-81 237 Bratislava, Slovak Republic, Institute of Theoretical Chemistry and Molecular Biology, University of Vienna, Währingerstrasse 17, AT-1100 Vienna, Austria, and Department of Physical Chemistry, Slovak University of Technology, Radlinského 9, SK-81 237 Bratislava, Slovak Republic
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Liu K. Crossed-beam studies of neutral reactions: state-specific differential cross sections. Annu Rev Phys Chem 2001; 52:139-64. [PMID: 11326062 DOI: 10.1146/annurev.physchem.52.1.139] [Citation(s) in RCA: 201] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Crossed-molecular-beam and laser techniques have enabled experimentalists to measure the state-resolved differential cross sections of elementary chemical reactions. This article reviews recent progress in this area. Particular emphasis is placed on some intriguing physical phenomena associated with a few benchmark reactions and how these measurements help in answering fundamental questions about reaction dynamics. We examine specifically the geometric phase effects in the reaction H + D2, the dynamical resonance phenomenon in F + HD, the unusually large spin-orbit reactivity in Cl((2)P) + H2, the insertion reaction O((1)D) + H2, and the mode-specific reactivity in Cl + CH4(nu). The give-and-take between experiment and theory in unraveling the physical picture of the dynamics is illustrated throughout this review.
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Affiliation(s)
- K Liu
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, Taiwan 10764, Republic of China.
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15
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Althorpe SC. Quantum wavepacket method for state-to-state reactive cross sections. J Chem Phys 2001. [DOI: 10.1063/1.1334866] [Citation(s) in RCA: 139] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Harper WW, Nizkorodov SA, Nesbitt DJ. Quantum state-resolved reactive scattering of F+CH4→HF(v,J)+CH3: Nascent HF(v,J) product state distributions. J Chem Phys 2000. [DOI: 10.1063/1.1287398] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Dong F, Lee SH, Liu K. Reactive excitation functions for F+p-H2/n-H2/D2 and the vibrational branching for F+HD. J Chem Phys 2000. [DOI: 10.1063/1.1287840] [Citation(s) in RCA: 101] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Nizkorodov SA, Harper WW, Chapman WB, Blackmon BW, Nesbitt DJ. Energy-dependent cross sections and nonadiabatic reaction dynamics in F(2P3/2,2P1/2)+n–H2→HF(v,J)+H. J Chem Phys 1999. [DOI: 10.1063/1.480182] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Honvault P, Launay JM. A quantum-mechanical study of the dynamics of the N(2D)+H2→NH+H reaction. J Chem Phys 1999. [DOI: 10.1063/1.480016] [Citation(s) in RCA: 121] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Aoiz FJ, Bañares L, Castillo JF. Spin–orbit effects in quantum mechanical rate constant calculations for the F+H2→HF+H reaction. J Chem Phys 1999. [DOI: 10.1063/1.479703] [Citation(s) in RCA: 73] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Chapman WB, Blackmon BW, Nizkorodov S, Nesbitt DJ. Quantum state-resolved reactive scattering of F+H2 in supersonic jets: Nascent HF(v,J) rovibrational distributions via IR laser direct absorption methods. J Chem Phys 1998. [DOI: 10.1063/1.477592] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Castillo JF, Hartke B, Werner HJ, Aoiz FJ, Bañares L, Martı́nez-Haya B. Quantum mechanical and quasiclassical simulations of molecular beam experiments for the F+H2→HF+H reaction on two ab initio potential energy surfaces. J Chem Phys 1998. [DOI: 10.1063/1.477401] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Alexander MH, Werner HJ, Manolopoulos DE. Spin–orbit effects in the reaction of F(2P) with H2. J Chem Phys 1998. [DOI: 10.1063/1.477192] [Citation(s) in RCA: 115] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Faubel M, Martínez−Haya B, Rusin LY, Tappe U, Toennies JP, Aoiz FJ, Bañares L. Rotational State Resolved Differential Cross Sections for the Reaction F + D2 → DF + D at Collision Energies 140−240 meV. J Phys Chem A 1998. [DOI: 10.1021/jp982488k] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Baer M, Faubel M, Martı́nez-Haya B, Rusin LY, Tappe U, Toennies JP. State-to-state differential cross sections for the reaction F+D2 at 90 meV: A crossed molecular beam experiment and a quantum mechanical study. J Chem Phys 1998. [DOI: 10.1063/1.476445] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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