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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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2
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Neumark DM. Spectroscopy of Radicals, Clusters, and Transition States Using Slow Electron Velocity-Map Imaging of Cryogenically Cooled Anions. J Phys Chem A 2023; 127:4207-4223. [PMID: 37094039 DOI: 10.1021/acs.jpca.3c01537] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Slow electron velocity-map imaging of cryogenically cooled anions (cryo-SEVI) is a high-resolution variant of anion photoelectron spectroscopy that has been applied with considerable success over the years to the study of radicals, size-selected clusters, and transition states for unimolecular and bimolecular reactions. Cryo-SEVI retains the versatility of conventional anion photoelectron spectroscopy while offering sub-meV resolution, thereby enabling the resolution of vibrational structure in the photoelectron spectra of complex anions. This Feature Article describes recent experiments in our laboratory using cryo-SEVI, including a new research direction in which anions are vibrationally pre-excited with an infrared laser pulse prior to photodetachment.
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Affiliation(s)
- Daniel M Neumark
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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3
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Observation of resonances in the transition state region of the F + NH 3 reaction using anion photoelectron spectroscopy. Nat Chem 2023; 15:194-199. [PMID: 36509851 DOI: 10.1038/s41557-022-01100-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 10/24/2022] [Indexed: 12/14/2022]
Abstract
The transition state of a chemical reaction is a dividing surface on the reaction potential energy surface (PES) between reactants and products and is thus of fundamental interest in understanding chemical reactivity. The transient nature of the transition state presents challenges to its experimental characterization. Transition-state spectroscopy experiments based on negative-ion photodetachment can provide a direct probe of this region of the PES, revealing the detailed vibrational structure associated with the transition state. Here we study the F + NH3 → HF + NH2 reaction using slow photoelectron velocity-map imaging spectroscopy of cryogenically cooled FNH3- anions. Reduced-dimensionality quantum dynamical simulations performed on a global PES show excellent agreement with the experimental results, enabling the assignment of spectral structure. Our combined experimental-theoretical study reveals a manifold of vibrational Feshbach resonances in the product well of the F + NH3 PES. At higher energies, the spectra identify features attributed to resonances localized across the transition state and into the reactant complex that may impact the bimolecular reaction dynamics.
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4
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Benitez Y, Nguyen TL, Parsons AJ, Stanton JF, Continetti RE. Probing the Exit Channel of the OH + CH 3OH → H 2O + CH 3O Reaction by Photodetachment of CH 3O -(H 2O). J Phys Chem Lett 2022; 13:142-148. [PMID: 34962408 DOI: 10.1021/acs.jpclett.1c03568] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Transition state dynamics of bimolecular reactions can be probed by photodetachment of a precursor anion when the Franck-Condon region of the corresponding neutral potential energy surface is near a saddle point. In this study, photodetachment of anions at m/z = 49 enabled investigation of the exit channel of the OH + CH3OH → H2O + CH3O reaction using photoelectron-photofragment coincidence spectroscopy. High-level coupled-cluster calculations of the stationary points on the anion surface show that the methoxide-water cluster CH3O-(H2O) is the stable minimum on the anion surface. Photodetachment at a 3.20 eV photon energy leads to long-lived H2O(CH3O) complexes and H2O + CH3O products consistent with both direct dissociative photodetachment and resonance mediated processes on the neutral surface. The partitioning of total kinetic energy in the system indicates that water stretch and bend excitation is induced in dissociative photodetachment and evidence for long-lived complexes consistent with vibrational Feshbach resonances is reported.
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Affiliation(s)
- Yanice Benitez
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093-0340, United States
| | - Thanh Lam Nguyen
- Quantum Theory Project, Department of Chemistry and Physics, University of Florida, Gainesville, Florida 32611, United States
| | - Austin J Parsons
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093-0340, United States
| | - John F Stanton
- Quantum Theory Project, Department of Chemistry and Physics, University of Florida, Gainesville, Florida 32611, United States
| | - Robert E Continetti
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093-0340, United States
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5
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Product Vibrational State Distributions of the F CH 3OH Reaction on a Full-Dimensional Accurate Potential Energy Surface. CHINESE J CHEM PHYS 2022. [DOI: 10.1063/1674-0068/cjcp2111252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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6
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7
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Lu D, Li J, Guo H. Stereodynamical control of product branching in multi-channel barrierless hydrogen abstraction of CH 3OH by F. Chem Sci 2019; 10:7994-8001. [PMID: 31853354 PMCID: PMC6836967 DOI: 10.1039/c9sc02445j] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 07/08/2019] [Indexed: 11/21/2022] Open
Abstract
Comprehensive dynamical simulations of a prototypical multi-channel reaction on a globally accurate potential energy surface show that the non-statistical product branching is dictated by unique stereodynamics in the entrance channels.
Hydrogen abstraction from methanol (CH3OH) by F atoms presents an ideal proving ground to investigate dynamics of multi-channel reactions, because two types of hydrogen can be abstracted from the methanol molecule leading to the HF + CH3O and HF + CH2OH products. Using the quasi-classical trajectory approach on a globally accurate potential energy surface based on high-level ab initio calculations, this work reports a comprehensive dynamical investigation of this multi-channel reaction, yielding measurable attributes including integral and differential cross sections, as well as branching ratios. It is shown that while complex-forming and direct mechanisms coexist at low collision energies, these barrierless reaction channels are dominated at high energies by the direct mechanism, in which the reaction is only possible for trajectories entering into the respective dynamical cones of acceptance. Perhaps more importantly, the non-statistical product branching is found to be dictated by unique stereodynamics in the entrance channels.
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Affiliation(s)
- Dandan Lu
- School of Chemistry and Chemical Engineering , Chongqing University , Chongqing 401331 , China .
| | - Jun Li
- School of Chemistry and Chemical Engineering , Chongqing University , Chongqing 401331 , China .
| | - Hua Guo
- Department of Chemistry and Chemical Biology , University of New Mexico , Albuquerque , New Mexico 87131 , USA .
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8
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Lu DD, Xie CJ, Li J, Guo H. Rate coefficients and branching ratio for multi-channel hydrogen abstractions from CH3OH by F. CHINESE J CHEM PHYS 2019. [DOI: 10.1063/1674-0068/cjcp1811256] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Dan-dan Lu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331,
China
| | - Chang-jian Xie
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131,
USA
| | - Jun Li
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331,
China
| | - Hua Guo
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131,
USA
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9
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Guo L, Li J, Ma J, Guo H. Quantum dynamical investigation of product state distributions of the F + CH3OH → HF + CH3O reaction via photodetachment of the F−(HOCH3) anion. J Chem Phys 2019; 150:044301. [DOI: 10.1063/1.5082274] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Lifen Guo
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu, Sichuan 610065, China
| | - Jun Li
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Jianyi Ma
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu, Sichuan 610065, China
| | - Hua Guo
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, USA
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Abstract
Slow photoelectron velocity-map imaging spectroscopy of cryogenically cooled anions (cryo-SEVI) is a powerful technique for elucidating the vibrational and electronic structure of neutral radicals, clusters, and reaction transition states. SEVI is a high-resolution variant of anion photoelectron spectroscopy based on photoelectron imaging that yields spectra with energy resolution as high as 1-2 cm-1. The preparation of cryogenically cold anions largely eliminates hot bands and dramatically narrows the rotational envelopes of spectral features, enabling the acquisition of well-resolved photoelectron spectra for complex and spectroscopically challenging species. We review the basis and history of the SEVI method, including recent experimental developments that have improved its resolution and versatility. We then survey recent SEVI studies to demonstrate the utility of this technique in the spectroscopy of aromatic radicals, metal and metal oxide clusters, nonadiabatic interactions between excited states of small molecules, and transition states of benchmark bimolecular reactions.
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Affiliation(s)
- Marissa L Weichman
- Department of Chemistry, University of California, Berkeley, California 94720, USA; , .,Current affiliation: JILA, National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - Daniel M Neumark
- Department of Chemistry, University of California, Berkeley, California 94720, USA; , .,Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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11
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Wang T, Yang T, Xiao C, Sun Z, Zhang D, Yang X, Weichman ML, Neumark DM. Dynamical resonances in chemical reactions. Chem Soc Rev 2018; 47:6744-6763. [DOI: 10.1039/c8cs00041g] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The transition state is a key concept in the field of chemistry and is important in the study of chemical kinetics and reaction dynamics.
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Affiliation(s)
- Tao Wang
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- China
| | - Tiangang Yang
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- China
| | - Chunlei Xiao
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- China
| | - Zhigang Sun
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- China
| | - Donghui Zhang
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- China
| | - Xueming Yang
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian
- China
| | | | - Daniel M. Neumark
- Department of Chemistry
- University of California at Berkeley
- Berkeley
- USA
- Chemical Sciences Division
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12
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Weichman ML, DeVine JA, Babin MC, Li J, Guo L, Ma J, Guo H, Neumark DM. Feshbach resonances in the exit channel of the F + CH3OH → HF + CH3O reaction observed using transition-state spectroscopy. Nat Chem 2017; 9:950-955. [DOI: 10.1038/nchem.2804] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 05/19/2017] [Indexed: 11/09/2022]
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13
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Abstract
Recent experimental and theoretical advances in transient reaction dynamics probed by photodetachment of polyatomic anions are reviewed.
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Affiliation(s)
- Robert E. Continetti
- Department of Chemistry and Biochemistry
- University of California San Diego
- La Jolla
- USA
| | - Hua Guo
- Department of Chemistry and Chemical Biology
- University of New Mexico
- Albuquerque
- USA
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14
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Ray AW, Agarwal J, Shen BB, Schaefer HF, Continetti RE. Energetics and transition-state dynamics of the F + HOCH3 → HF + OCH3 reaction. Phys Chem Chem Phys 2016; 18:30612-30621. [DOI: 10.1039/c6cp06409d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Probing the transition state of the F + HOCH3 → HF + OCH3 reaction using photoelectron–photofragment coincidence spectroscopy accesses reactants, products, stable van der Waals complexes and long-lived metastable complexes.
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Affiliation(s)
- Amelia W. Ray
- Department of Chemistry and Biochemistry
- University of California, San Diego
- La Jolla
- USA
| | - Jay Agarwal
- Center for Computational Quantum Chemistry
- Department of Chemistry
- University of Georgia
- Athens
- USA
| | - Ben B. Shen
- Department of Chemistry and Biochemistry
- University of California, San Diego
- La Jolla
- USA
| | - H. F. Schaefer
- Center for Computational Quantum Chemistry
- Department of Chemistry
- University of Georgia
- Athens
- USA
| | - Robert E. Continetti
- Department of Chemistry and Biochemistry
- University of California, San Diego
- La Jolla
- USA
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15
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Gushchin PV, Kuznetsov ML, Haukka M, Kukushkin VY. Anionic Halide···Alcohol Clusters in the Solid State. J Phys Chem A 2014; 118:9529-39. [DOI: 10.1021/jp506256a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Pavel V. Gushchin
- Institute
of Chemistry, Saint Petersburg State University, 198504 Stary Petergof, Russian Federation
| | - Maxim L. Kuznetsov
- Centro
de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Matti Haukka
- Department
of Chemistry, University of Jyväskylä, P.O. Box 35, FI-40014, Jyväskylä, Finland
| | - Vadim Yu. Kukushkin
- Institute
of Chemistry, Saint Petersburg State University, 198504 Stary Petergof, Russian Federation
- Institute
of Macromolecular Compounds of Russian Academy of Sciences, V. O. Bolshoii
Pr. 31, 199004, Saint Petersburg, Russian Federation
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16
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Zhao D, He X, Guo W. Stereodynamics investigation of F + HO → HF + O(1D) on the ground singlet potential energy surface by means of the quasi-classical trajectory method. CAN J CHEM 2014. [DOI: 10.1139/cjc-2013-0401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The stereodynamics calculation of F + HO → HF + O(1D) was carried out using the quasi-classical trajectory method on the 11A′ potential energy surface provided by Gomez-Carrasco et al. (Chem. Phys. Lett. 2007, 435, 188). The effect of the collision energy, isotopic substitution, and different initial ro-vibrational states on the reaction is discussed. It is found that for the initial ground state of HO (v = 0, j = 0), the degree of the forward scattering and the product polarizations remarkably change as the collision energy varies. Isotopic effect leads to the increase of alignment and decrease of orientation of product rotational angular momentum. Moreover, the P(θr) distribution and P(φr) distribution change noticeably by varying the initial vibrational number. The initial vibrational excitation plays a more important role in the enhancement of alignment and orientation distribution of j′ for the title reaction. Although the influence of the initial rotational excitation effect on the aligned and oriented distribution of product is not stronger than that of the initial vibrational excitation effect, the initial rotational excitation makes the alignment of the product rotational angular momentum decrease to some extent. The probabilities show that the reactivity of the title reaction strongly depends on the initial vibrational state.
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Affiliation(s)
- Dan Zhao
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xiaohu He
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Wei Guo
- School of Electric Engineering, University of South China, Hengyang 421001, China
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Pérez-Hernández G, González-Vázquez J, González L. IR Spectrum of FHF– and FDF– Revisited Using a Spectral Method in Four Dimensions. J Phys Chem A 2012; 116:11361-9. [DOI: 10.1021/jp3058383] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Leticia González
- Institute of Theoretical Chemistry, University of Vienna, Währinger Strasse 17, 1090 Vienna, Austria
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18
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Yacovitch TI, Garand E, Kim JB, Hock C, Theis T, Neumark DM. Vibrationally resolved transition state spectroscopy of the F + H2 and F + CH4 reactions. Faraday Discuss 2012; 157:399-414; discussion 475-500. [DOI: 10.1039/c2fd20011b] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Gogtas F, Tutuk R, Kurban M. Time-dependent quantum study of H(2S) + FO(2Π) → OH(2Π) + F(2P) reaction on the 13A′ and 13A″ states. J Comput Chem 2010; 31:2607-11. [DOI: 10.1002/jcc.21555] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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20
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Zanchet A, González-Lezana T, Aguado A, Gómez-Carrasco S, Roncero O. Nonadiabatic state-to-state reactive collisions among open shell reactants with conical intersections: the OH((2)Pi) + F((2)P) example. J Phys Chem A 2010; 114:9733-42. [PMID: 20465247 DOI: 10.1021/jp101914a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Accurate wave packet calculations on the OH((2)Pi) + F((2)P) → O((3)P) + HF((1)Sigma(+)) reactive collisions are performed using a recently proposed coupled diabatic states. Adiabatic and nonadiabatic dynamics are compared in detail, analyzing the final state distribution of products. It is found that with the new surfaces a significant increase of the rate constant is obtained, with noticeable nonadiabatic effects. The inclusion of the spin-orbit splittings for the calculation of the electronic partition function produces an important increase of the reaction rate constants, yielding a rather good agreement with the experimental results. It is also concluded that spin-orbit couplings are also necessary in the entrance channel to describe this reaction.
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Affiliation(s)
- Alexandre Zanchet
- Unidad Asociada UAM-CSIC, Instituto de Física Fundamental, CSIC, Serrano 123, 28006 Madrid, Spain
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Entfellner M, Opalka D, Boesl U. Photodetachment-photoelectron spectroscopy of HS- x H2S and DS- x D2S: the transition states of the SH + H2S and SD + D2S reactions. Phys Chem Chem Phys 2010; 12:9034-42. [PMID: 20556264 DOI: 10.1039/b925941d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The transition state region for neutral hydrogen transfer reactions can be accessed by photodetachment of a stable negative ion with a geometry similar to that of the neutral transition state. In this work the SH + H(2)S and SD + D(2)S reactions are investigated by photodetachment-photoelectron spectroscopy of HS(-) x H(2)S and DS(-) x D(2)S. The spectra exhibit vibrational structure which is attributed to the antisymmetric stretching mode (H-atom motion) of the neutral transitions state for H-atom transfer. The spectra are compared to one-dimensional simulations performed using a wave packet propagation scheme. Electronic structure calculations of the anionic, neutral and transition-state geometries and calculations of the vertical detachment energy at different levels of theory are used to support the analysis of the spectra. A vertical detachment energy VDE of 3.06 eV has been determined.
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22
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DIXON RICHARDN, TACHIKAWA HIROTO. The photodetachment spectrum of OHF−: the influence of vibration at a transition state. Mol Phys 2009. [DOI: 10.1080/00268979909482822] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- RICHARD N. DIXON
- a School of Chemistry , University of Bristol , Bristol , BS8 1TS , UK
| | - HIROTO TACHIKAWA
- b Graduate School of Engineering , Hokkaido University , Sapporo , 060 , Japan
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23
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Guerrero A, Herrero R, Dávalos JZ, Koppel I, Abboud JLM, Chana A, Koppel IA. Hydrogen-Bonding Interactions of (CF3)3CH and (CF3)3C− in the Gas Phase. An Experimental (FT-ICR) and Computational Study. J Phys Chem A 2009; 113:6422-9. [DOI: 10.1021/jp811057m] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Andrés Guerrero
- Instituto de Química Física Rocasolano, CSIC, C/Serrano 119, E-28006 Madrid, Spain, and Institute of Chemistry, Tartu University, Jakobi Street 2, 51014 Tartu, Estonia
| | - Rebeca Herrero
- Instituto de Química Física Rocasolano, CSIC, C/Serrano 119, E-28006 Madrid, Spain, and Institute of Chemistry, Tartu University, Jakobi Street 2, 51014 Tartu, Estonia
| | - Juan Z. Dávalos
- Instituto de Química Física Rocasolano, CSIC, C/Serrano 119, E-28006 Madrid, Spain, and Institute of Chemistry, Tartu University, Jakobi Street 2, 51014 Tartu, Estonia
| | - Ivar Koppel
- Instituto de Química Física Rocasolano, CSIC, C/Serrano 119, E-28006 Madrid, Spain, and Institute of Chemistry, Tartu University, Jakobi Street 2, 51014 Tartu, Estonia
| | - José-Luis M. Abboud
- Instituto de Química Física Rocasolano, CSIC, C/Serrano 119, E-28006 Madrid, Spain, and Institute of Chemistry, Tartu University, Jakobi Street 2, 51014 Tartu, Estonia
| | - Antonio Chana
- Instituto de Química Física Rocasolano, CSIC, C/Serrano 119, E-28006 Madrid, Spain, and Institute of Chemistry, Tartu University, Jakobi Street 2, 51014 Tartu, Estonia
| | - Ilmar A. Koppel
- Instituto de Química Física Rocasolano, CSIC, C/Serrano 119, E-28006 Madrid, Spain, and Institute of Chemistry, Tartu University, Jakobi Street 2, 51014 Tartu, Estonia
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24
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Li S, van der Est A, Bunce NJ. Electrochemical oxidation of oxalate ion in the presence of fluoride ion, and radical analysis by ESR. Electrochim Acta 2009. [DOI: 10.1016/j.electacta.2009.01.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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25
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26
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Gogtas F. Time-dependent quantum study of the kinetics of the H(2S) + FO(2II) → OH(2II) + F(2P) reaction. J Comput Chem 2008; 29:1889-94. [DOI: 10.1002/jcc.20948] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Alexander MH, Kłos J, Manolopoulos DE. Nonadiabatic effects in the photodetachment of ClH2−. J Chem Phys 2008; 128:084312. [DOI: 10.1063/1.2834690] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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28
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Gómez-Carrasco S, Aguado A, Paniagua M, Roncero O. Coupled diabatic potential energy surfaces for studying the nonadiabatic dynamics at conical intersections in angular resolved photodetachment simulations of OHF--->OHF+e-. J Chem Phys 2007; 125:164321. [PMID: 17092087 DOI: 10.1063/1.2363988] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
An energy-based method is proposed for the diabatization of the OH(2Pi)+F(2P)-->O(3P)+HF(1Sigma+) reaction. It is demonstrated that the diabatic representation obtained is regularized, i.e., the residual derivative couplings do not present singularities at the conical intersections appearing along the reaction path. This method only requires the knowledge of the 1,2 3A" and 1 3A' eigenvalues and does not require any adjustable parameter. Thus, many convergence problems arising in other derivative-based diabatization methods are avoided, and the description of the configuration space along the reaction path is enormously simplified. Three-dimensional coupled diabatic energy surfaces are obtained by an interpolation procedure using approximately 4000 accurate ab initio points. The angular resolved photodetachment cross sections are obtained in the diabatic and adiabatic representations using a wave packet method. An excellent agreement is obtained with recent experimental data [D. M. Neumark, Phys. Chem. Chem. Phys. 7, 433 (2005)] for high electron kinetic energies where only the triplet electronic states contribute.
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Affiliation(s)
- Susana Gómez-Carrasco
- Unidad Asociada UAM-CSIC, Instituto de Matemáticas y Física Fundamental, CSIC, Serrano 123, 28006 Madrid, Spain
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Transition state spectroscopy of open shell systems: Angle-resolved photodetachment spectra for the adiabatic singlet states of OHF. J Photochem Photobiol A Chem 2007. [DOI: 10.1016/j.jphotochem.2007.01.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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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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31
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Elghobashi N, González L. A theoretical anharmonic study of the infrared absorption spectra of FHF−, FDF−, OHF−, and ODF− anions. J Chem Phys 2006; 124:174308. [PMID: 16689572 DOI: 10.1063/1.2191042] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Anharmonic vibrational frequencies, equilibrium bond lengths, rotational constants, and vibrational absorption spectra have been calculated for the triatomic anions, FHF(-) and OHF(-), and the heavier isotopomers FDF(-) and ODF(-). The triatomic anions are assumed to maintain a collinear configuration throughout all calculations, so only the symmetric (nu(1)) and asymmetric (nu(3)) stretching modes are considered. The two-dimensional permanent dipole surfaces and potential energy surfaces are then constructed along bond coordinates, using high-level ab initio methods. Fundamental and combination bands are obtained from the vibrational eigenfunctions, resulting in anharmonic frequencies, which can be compared with the available theoretical and experimental data. The agreement is very good, especially for the pure symmetric modes, while the asymmetric ones show larger discrepancies, presumably due to the neglected coupling between stretching and bending modes. Strong inverse anharmonicity is found in the level spacing of the asymmetric modes, for both FHF(-) and OHF(-) anions. The calculated mixed modes (nnu(1)+mnu(3), n, m=0-3) also agree reasonably with the few available experimental data, supporting our model. Based on the vibrational eigenfunctions, isotope effects are also rationalized. Infrared absorption spectra are calculated from the dipole autocorrelation function for FHF(-) and FDF(-), and for OHF(-) and ODF(-). Peak locations and relative intensities are assigned in terms of the fundamental and mixed transitions.
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Affiliation(s)
- Nadia Elghobashi
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
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32
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Hayes MY, Deskevich MP, Nesbitt DJ, Takahashi K, Skodje RT. A Simple Picture for the Rotational Enhancement of the Rate for the F + HCl → HF + Cl Reaction: A Dynamical Study Using a New ab initio Potential Energy Surface. J Phys Chem A 2005; 110:436-44. [PMID: 16405315 DOI: 10.1021/jp0535745] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Quantum scattering calculations for the reaction F + HCl --> HF + Cl are performed on a new ground-state ab initio potential energy surface. The reagent rotation is found to have a dramatic effect on the reaction probability. Furthermore, the exit channel rotational thresholds leave a strong imprint on the reaction probabilities and even on the cumulative reaction probability. A very simple vibrationally adiabatic model is shown to account for most aspects of the reaction dynamics. In this model, the fast vibrational motion is adiabatically eliminated leaving the key reaction dynamics represented by a reduced atom + rotor collision. The shape of the adiabatic potential surface immediately yields to a simple and intuitive interpretation for the rotational enhancement of the rate. The rotational enhancement is shown to be an effect of the entrance channel dynamics of the atom-rotor problem.
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Affiliation(s)
- Michael Y Hayes
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309, USA
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33
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Gómez-Carrasco S, Roncero O, González-Sánchez L, Hernández ML, Alvariño JM, Paniagua M, Aguado A. F+OH reactive collisions on new excited A″3 and A′3 potential-energy surfaces. J Chem Phys 2005; 123:114310. [PMID: 16392562 DOI: 10.1063/1.2046669] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Global three-dimensional adiabatic potential-energy surfaces for the excited 2(3)A" and 1(3)A' triplet states of OHF are obtained to study the F(2P)+OH(2pi)-->O(3P)+HF(1sigma+) reaction. Highly accurate ab initio calculations are obtained for the two excited electronic states and fitted to analytical functions with small deviations. The reaction dynamics is studied using a wave-packet treatment within a centrifugal sudden approach, which is justified by the linear transition state of the two electronic states studied. The reaction efficiency presents a marked preference for perpendicular orientation of the initial relative velocity vector and the angular momentum of the OH reagent, consistent in the body-fixed frame used with an initial collinear geometry which facilitates the access to the transition state. It is also found that the reaction cross section presents a rather high threshold so that, in an adiabatic picture, the two excited triplet states do not contribute to the rate constant at room temperature. Thus, only the lowest triplet state leads to reaction under these conditions and the simulated rate constants are too low as compared with the experimental ones. Such disagreement is likely to be due to nonadiabatic transitions occurring at the conical intersections near the transition state for this reaction.
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Affiliation(s)
- Susana Gómez-Carrasco
- Unidad Asociada, Universidad Autónoma de Madrid-Consejo Superior de Investigaciones Científicas, Instituto de Matemáticas y Física Fundamental, Consejo Superior de Investigaciones Científicas, Madrid, Spain.
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34
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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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35
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Deyerl HJ, Continetti RE. Photoelectron–photofragment coincidence study of OHF−: transition state dynamics of the reaction OH + F → O + HF. Phys Chem Chem Phys 2005; 7:855-60. [DOI: 10.1039/b414604b] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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González-Sánchez L, Gómez-Carrasco S, Aguado A, Paniagua M, Hernández ML, Alvariño JM, Roncero O. Transition state dynamics of OHF on several electronic states: photodetachment spectrum of OHF- and conical intersections. J Chem Phys 2004; 121:9865-75. [PMID: 15549859 DOI: 10.1063/1.1807375] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Wave packet simulations of the photodetachment spectrum of OHF(-) are performed on several electronic adiabatic states, two triplets and four singlets of neutral OHF. The transition moments to these six states have been approximated using the ab initio electronic wave functions of OHF(-) and OHF calculated at the equilibrium configuration of the parent anion. In a first step, two-dimensional simulations of the spectrum are performed on new two-dimensional potential energy surfaces (PESs) of the neutral in a OHF collinear geometry. The resulting simulated spectrum is in rather good agreement with the experimental one, reproducing all the structures from 0 to 2.5 eV electron kinetic energies. At energies below 0.5 eV, all calculated states, singlets and triplets, contribute to the total spectrum. At higher energies, however, only the triplet states participate. In a second step, to improve the description of the spectrum, three-dimensional wave packet simulations of the spectrum are performed, getting an excellent agreement with the experiment. The collinear (3)Sigma(-) and (3)Pi states split in two (3)A(") and one (3)A('). New adiabatic PESs are used in this work for the 2 (3)A(") and 1 (3)A(') states, while the one recently proposed was used for the ground 1 (3)A("). It is found that the minimum energy paths of the (3)Sigma(-) and (3)Pi states cross twice at collinear geometry, so that at the transition state the ground state corresponds to (3)Pi, while (3)Sigma(-) is the lowest state otherwise. Such conical intersections are expected to give rise to important Sigma-Pi vibronic effects, requiring a complete three-dimensional model of coupled diabatic states to improve our understanding of the reaction dynamics in this kind of systems.
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Affiliation(s)
- Lola González-Sánchez
- Unidad Asociada UAM-CSIC, Instituto de Matemáticas y Física Fundamental, C.S.I.C., Serrano 123, 28006 Madrid, Spain
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37
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González-Sánchez L, Gómez-Carrasco S, Aguado A, Paniagua M, Luz Hernández M, Alvariño JM, Roncero * O. Quantum stereodynamics of the F+OH(v, j) reactive collision on the 13A″ state. Mol Phys 2004. [DOI: 10.1080/00268970412331318831] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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38
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Gómez-Carrasco S, González-Snchez L, Aguado A, Roncero O, Alvariño JM, Hernández ML, Paniagua M. Direct versus resonances mediated F+OH collisions on a new 3A″ potential energy surface. J Chem Phys 2004; 121:4605-18. [PMID: 15332891 DOI: 10.1063/1.1780168] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A theoretical study of the F(2P) + OH(2Pi) --> HF(1Sigma+) + O(3P) reactive collisions is carried out on a new global potential energy surface (PES) of the ground 3A" adiabatic electronic state. The ab initio calculations are based on multireference configuration interaction calculations, using the aug-cc-pVTZ extended basis sets of Dunning et al. A functional representation of the PES shows no nominal barrier to reaction, contrary to previous results by others. Wave packet and quasiclassical trajectory calculations have been performed for this PES to study the F + OH(v = 0,j) reactive collision. The comparison was performed at fixed and constant values of the total angular momentum from 0 to 110 and relative translational energy up to 0.8 eV. The reaction presents a dynamical barrier, essentially due to the zero-point energy for the bending vibration near the saddle point. This determines two different reaction mechanisms. At energies higher than approximately 0.125 eV the reaction is direct, while below that value it is indirect and mediated by heavy-light-heavy resonances. Such resonances, also found in the simulations of the photodetachment spectrum of the triatomic anion, manifest themselves in the quasiclassical simulations, too, where they are associated to periodic orbits.
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Affiliation(s)
- Susana Gómez-Carrasco
- Departamento de Quimica Fisica, Facultad de Quimica, Universidad de Salamanca, 37008 Salamanca, Spain
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39
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Bechtel HA, Camden JP, Zare RN. State-to-state dynamics of the Cl+CH3OH→HCl+CH2OH reaction. J Chem Phys 2004; 120:4231-9. [PMID: 15268590 DOI: 10.1063/1.1644797] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Molecular chlorine, methanol, and helium are co-expanded into a vacuum chamber using a custom designed "late-mixing" nozzle. The title reaction is initiated by photolysis of Cl2 at 355 nm, which generates monoenergetic Cl atoms that react with CH3OH at a collision energy of 1960 +/- 170 cm(-1) (0.24 +/- 0.02 eV). Rovibrational state distributions of the nascent HCl products are obtained via 2 + 1 resonance enhanced multiphoton ionization, center-of-mass scattering distributions are measured by the core-extraction technique, and the average internal energy of the CH3OH co-products is deduced by measuring the spatial anisotropy of the HCl products. The majority (84 +/- 7%) of the HCl reaction products are formed in HCl(v = 0) with an average rotational energy of [Erot] = 390 +/- 70 cm(-1). The remaining 16 +/- 7% are formed in HCl(v = 1) and have an average rotational energy of [Erot] = 190 +/- 30 cm(-1). The HCl(v = 1) products are primarily forward scattered, and they are formed in coincidence with CH2OH products that have little internal energy. In contrast, the HCl(v = 0) products are formed in coincidence with CH2OH products that have significant internal energy. These results indicate that two or more different mechanisms are responsible for the dynamics in the Cl + CH3OH reaction. We suggest that (1) the HCl(v = 1) products are formed primarily from collisions at high impact parameter via a stripping mechanism in which the CH2OH co-products act as spectators, and (2) the HCl(v = 0) products are formed from collisions over a wide range of impact parameters, resulting in both a stripping mechanism and a rebound mechanism in which the CH2OH co-products are active participants. In all cases, the reaction of fast Cl atoms with CH3OH is with the hydrogen atoms on the methyl group, not the hydrogen on the hydroxyl group.
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Affiliation(s)
- Hans A Bechtel
- Department of Chemistry, Stanford University, Stanford, California 94305-5080, USA
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40
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Gómez-Carrasco S, González-Sánchez L, Aguado A, Paniagua M, Roncero O, Luz Hernández M, Alvariño JM. Dynamics and kinetics of the F+OH reaction on the ground triplet potential energy surface. Chem Phys Lett 2004. [DOI: 10.1016/j.cplett.2003.10.142] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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41
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González-Sánchez L, Gómez-Carrasco S, Aguado A, Paniagua M, Hernández ML, Alvariño JM, Roncero O. Photodetachment spectrum of OHF[sup −]: Three-dimensional study of the heavy–light–heavy resonances. J Chem Phys 2004; 121:309-20. [PMID: 15260549 DOI: 10.1063/1.1756581] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In this work a simulation of the OHF(-) photodetachment spectrum is performed in a three-dimensional potential energy surface recently developed for OHF((3)A(")). The ground (2)A(') state potential of the anion is calculated in three dimensions based on accurate ab initio calculations and the reaction dynamics is studied using a wave packet method. The calculated spectrum shows a sequence of bands associated to vibrational HF(v) up to v=3. Each band is formed by a continuous spectrum and resonant structures. These resonances are associated to the OH-F channel well of the (3)A(") PES, in which fragmentation occurs through vibrational predissociation. Above the OH(v=0) threshold a new resonant pattern appears corresponding to heavy-light-heavy resonances. Special attention is paid to the assignment of these resonances because they mediate the reaction dynamics in the OH+F collision at low kinetic energies. The sequence of bands is in rather good agreement with that appearing in the experimental spectrum, especially at higher electron kinetic energies. At low kinetic energies, however, some other electronic states may contribute. The resonance structures might be washed out by the rotational average and the relatively low energy resolution of the experiment.
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Affiliation(s)
- Lola González-Sánchez
- Unidad Asociada UAM-CSIC, Instituto de Matemáticas y Física Fundamental, C.S.I.C., Serrano 123, 28006 Madrid, Spain
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42
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Alexander MH. Theoretical investigation of the lower bend-stretch states of the Cl−H2 anion complex and its isotopomers. J Chem Phys 2003. [DOI: 10.1063/1.1533034] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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43
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Rudić S, Murray C, Ascenzi D, Anderson H, Harvey JN, Orr-Ewing AJ. The dynamics of formation of HCl products from the reaction of Cl atoms with methanol, ethanol, and dimethyl ether. J Chem Phys 2002. [DOI: 10.1063/1.1502646] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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44
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Ishikawa Y, Nakajima T, Yanai T, Hirao K. Ab initio direct molecular dynamics study of the fragmentation of F(H2O) complex generated by photodetachment of F−(H2O) anion complex. Chem Phys Lett 2002. [DOI: 10.1016/s0009-2614(02)01207-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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45
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Yang X, Wang XB, Wang LS. Photodetachment of F−(H2O)n (n=1–4): Observation of charge-transfer states [F−(H2O)n+] and the transition state of F+H2O hydrogen abstraction reaction. J Chem Phys 2001. [DOI: 10.1063/1.1394758] [Citation(s) in RCA: 46] [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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46
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47
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Chabinyc ML, Brauman JI. Unusual Ionic Hydrogen Bonds: Complexes of Acetylides and Fluoroform. J Am Chem Soc 2000. [DOI: 10.1021/ja000806z] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michael L. Chabinyc
- Contribution from the Department of Chemistry, Stanford University, Stanford, California 94305-5080
| | - John I. Brauman
- Contribution from the Department of Chemistry, Stanford University, Stanford, California 94305-5080
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48
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Bogdanov B, McMahon TB. An Ab Initio and Density Functional Theory Investigation of the Structures and Energetics of Halide Ion−Alcohol Complexes in the Gas Phase. J Phys Chem A 2000. [DOI: 10.1021/jp000776m] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- B. Bogdanov
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
| | - T. B. McMahon
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
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49
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Chabinyc ML, Brauman JI. Hydrogen-Bonded Complexes of Methanol and Acetylides. Structure and Energy Correlations. J Am Chem Soc 2000. [DOI: 10.1021/ja994191l] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Michael L. Chabinyc
- Contribution from the Department of Chemistry, Stanford University, Stanford, California 94305-5080
| | - John I. Brauman
- Contribution from the Department of Chemistry, Stanford University, Stanford, California 94305-5080
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50
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Schwartz RL, Davico GE, Kim JB, Carl Lineberger W. Negative ion photoelectron spectroscopy of OH−(NH3). J Chem Phys 2000. [DOI: 10.1063/1.481051] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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