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Mao Y, Yang Z, Buren B, Chen M. Unveiling Quantum Interference in the D + + H 2 Nonadiabatic Reaction Dynamics at Low Collision Energies. J Phys Chem A 2024; 128:420-430. [PMID: 38174889 DOI: 10.1021/acs.jpca.3c07097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Fully converged nonadiabatic dynamics calculations of the D+ + H2 → H+ + HD reaction are performed at low temperatures using the time-dependent wave packet approach based on a set of precise 3 × 3 diabatic potential energy surfaces (PESs) ( Phys. Chem. Chem. Phys., 2021, 23, 7735-7747, DOI: 10.1039/D0CP04100A). The D+ + H2 reaction is mediated by a dense manifold of resonances associated with the deep potential well on the ground-state PES. The calculated results show that the nonadiabatic coupling can affect the resonance positions, deviating from the expectation based solely on adiabatic considerations. Furthermore, significant forward-backward asymmetry in total differential cross sections (DCSs) is revealed, which is markedly influenced by nonadiabatic effects. The nonadiabatic effects not only affect the contribution of partial waves in the reaction but also make the interference patterns in the DCSs change significantly.
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Affiliation(s)
- Ye Mao
- Key Laboratory of Materials Modification by Laser, Electron, and Ion Beams (Ministry of Education), School of Physics, Dalian University of Technology, Dalian 116024, PR China
| | - Zijiang Yang
- Key Laboratory of Materials Modification by Laser, Electron, and Ion Beams (Ministry of Education), School of Physics, Dalian University of Technology, Dalian 116024, PR China
| | - Bayaer Buren
- School of Science, Shenyang University of Technology, Shenyang 110870, PR China
| | - Maodu Chen
- Key Laboratory of Materials Modification by Laser, Electron, and Ion Beams (Ministry of Education), School of Physics, Dalian University of Technology, Dalian 116024, PR China
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Roncero O, Andrianarijaona V, Aguado A, Sanz-Sanz C. Vibrational effects in the quantum dynamics of the H + D 2+ charge transfer reaction. Mol Phys 2021. [DOI: 10.1080/00268976.2021.1948125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- O. Roncero
- IFF-CSIC, Instituto de Física Fundamental, Madrid, Spain
| | - V. Andrianarijaona
- Department of Physics, Pacific Union College, Angwin, CA, USA
- Department of Physics and Engineering, Southern Adventist University, Collegedale, TN, USA
| | - A. Aguado
- Unidad Asociada UAM-CSIC, Departamento de Química Física Aplicada, Universidad Autónoma de Madrid, Madrid, Spain
| | - C. Sanz-Sanz
- Unidad Asociada UAM-CSIC, Departamento de Química Física Aplicada, Universidad Autónoma de Madrid, Madrid, Spain
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Sanz-Sanz C, Aguado A, Roncero O. Near-resonant effects in the quantum dynamics of the H + H 2 + → H 2 + H + charge transfer reaction and isotopic variants. J Chem Phys 2021; 154:104104. [PMID: 33722048 DOI: 10.1063/5.0044320] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The non-adiabatic quantum dynamics of the H + H2 + → H2 + H+ charge transfer reactions, and some isotopic variants, is studied with an accurate wave packet method. A recently developed 3 × 3 diabatic potential model is used, which is based on very accurate ab initio calculations and includes the long-range interactions for ground and excited states. It is found that for initial H2 +(v = 0), the quasi-degenerate H2(v' = 4) non-reactive charge transfer product is enhanced, producing an increase in the reaction probability and cross section. It becomes the dominant channel from collision energies above 0.2 eV, producing a ratio between v' = 4 and the rest of v's, which that increase up to 1 eV. The H + H2 + → H2 + + H exchange reaction channel is nearly negligible, while the reactive and non-reactive charge transfer reaction channels are of the same order, except that corresponding to H2(v' = 4), and the two charge transfer processes compete below 0.2 eV. This enhancement is expected to play an important vibrational and isotopic effect that needs to be evaluated. For the three proton case, the problem of the permutation symmetry is discussed when using reactant Jacobi coordinates.
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Affiliation(s)
- Cristina Sanz-Sanz
- Unidad Asociada UAM-CSIC, Departamento de Química Física Aplicada, Facultad de Ciencias M-14, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Alfredo Aguado
- Unidad Asociada UAM-CSIC, Departamento de Química Física Aplicada, Facultad de Ciencias M-14, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Octavio Roncero
- Instituto de Física Fundamental (IFF-CSIC), C.S.I.C., Serrano 123, 28006 Madrid, Spain
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Ghosh S, Sahoo T, Baer M, Adhikari S. Charge Transfer Processes for H + H 2+ Reaction Employing Coupled 3D Wavepacket Approach on Beyond Born-Oppenheimer Based Ab Initio Constructed Diabatic Potential Energy Surfaces. J Phys Chem A 2021; 125:731-745. [PMID: 33461293 DOI: 10.1021/acs.jpca.0c08975] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The dynamics of the H + H2+ reaction has been analyzed from the electronically first excited state of diabatic potential energy surfaces constructed by employing the Beyond Born-Oppenheimer theory [J. Chem. Phys. 2014, 141, 204306]. We have employed the coupled 3D time-dependent wavepacket formalism in hyperspherical coordinates for multisurface reactive scattering problems. To be specific, the charge transfer processes have been investigated extensively by calculating state-to-state as well as total reaction probabilities and integral cross sections, when the reaction process is initiated from the first excited electronic state (21A'). We have depicted the convergence profiles of reaction probabilities for the competing charge transfer processes, namely, reactive charge transfer (RCT) and nonreactive charge transfer (NRCT) processes for different total energies with respect to total angular momentum, J. Total and state-to-state integral cross sections are calculated as a function of total energy for the initial rovibrational state, namely, v = 0, j = 0 level of H2+ (2Σg+) molecule and are compared with previous theoretical calculations. Finally, we have calculated temperature-dependent rate constants using our presently evaluated cross sections and compared their average with the experimentally measured one.
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Affiliation(s)
- Sandip Ghosh
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Kolkata, 700 032, India
| | - Tapas Sahoo
- Department of Chemistry, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Michael Baer
- The Fritz Haber Center for Molecular Dynamics, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - Satrajit Adhikari
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Kolkata, 700 032, India
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Illescas C, Lombana MA, Méndez L, Rabadán I, Suárez J. A classical and semiclassical study of collisions between X q+ ions and water molecules. Phys Chem Chem Phys 2020; 22:19573-19584. [PMID: 32852017 DOI: 10.1039/d0cp02839h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Collisions of He2+, Li3+ and C3+ ions with water molecules are studied at energies ranging between 20 keV u-1 and 500 keV u-1. Three methods are employed: the classical trajectory Monte Carlo (CTMC), the expansion of the scattering wave function in terms of asymptotic frozen molecular orbitals (AFMO) and a lattice method to numerically solve the time-dependent Schrödinger equation (GridTDSE). Total cross sections for single ionization, single electron capture, transfer ionization and electron production are calculated and compared with previous close-coupling calculations and experiments. The fragmentation branching ratios are discussed.
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Affiliation(s)
- Clara Illescas
- Laboratorio Asociado al CIEMAT de Física Atómica y Molecular en Plasmas de Fusión, Departamento de Química, módulo 13, Universidad Autónoma de Madrid, 28049-Madrid, Spain.
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Urbain X, Dochain A, Marion R, Launoy T, Loreau J. Photodissociation as a probe of the H 3+ avoided crossing seam. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2019; 377:20180399. [PMID: 31378172 PMCID: PMC6710895 DOI: 10.1098/rsta.2018.0399] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/20/2019] [Indexed: 06/10/2023]
Abstract
Experiments are conducted to investigate the role of the avoided crossing seam in the photodissociation of H3+. Three-dimensional imaging of dissociation products is used to determine the kinetic energy release and branching ratio among the fragmentation channels. Vibrational distributions are measured by dissociative charge transfer of H2+ products. It is found that the photodissociation of hot H3+ in the near-ultraviolet produces cold H2+, but hot H2. Modelling the wavepacket dynamics along the repulsive potential energy surface accounts for the repopulation of the ground potential energy surface. The role of the avoided crossing seam is emphasized and its importance for the astrophysically relevant charge transfer reactions underlined. This article is part of a discussion meeting issue 'Advances in hydrogen molecular ions: H3+, H5+ and beyond'.
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Affiliation(s)
- X. Urbain
- Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain, Chemin du Cyclotron 2, 1348 Louvain- la-Neuve, Belgium
| | - A. Dochain
- Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain, Chemin du Cyclotron 2, 1348 Louvain- la-Neuve, Belgium
| | - R. Marion
- Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain, Chemin du Cyclotron 2, 1348 Louvain- la-Neuve, Belgium
| | - T. Launoy
- Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain, Chemin du Cyclotron 2, 1348 Louvain- la-Neuve, Belgium
- Laboratoire de Chimie Quantique et Photophysique, Université Libre de Bruxelles, Av. F. Roosevelt 50, 1050 Brussels, Belgium
| | - J. Loreau
- Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain, Chemin du Cyclotron 2, 1348 Louvain- la-Neuve, Belgium
- Laboratoire de Chimie Quantique et Photophysique, Université Libre de Bruxelles, Av. F. Roosevelt 50, 1050 Brussels, Belgium
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Mukherjee B, Mukhopadhyay D, Adhikari S, Baer M. Topological study of the H3++ molecular system: H3++ as a cornerstone for building molecules during the Big Bang. Mol Phys 2018. [DOI: 10.1080/00268976.2018.1442940] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Bijit Mukherjee
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Kolkata, India
| | | | - Satrajit Adhikari
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Kolkata, India
| | - Michael Baer
- The Fritz Haber Center for Molecular Dynamics, The Hebrew University of Jerusalem, Jerusalem, Israel
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