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Wang Y, Li H, Zhang J, Liu C. Dynamics of the proton transfer reaction O + H 2+( v = 0, j = 0) → OH + + H on the ground 1 2A ″ potential energy surface. Mol Phys 2022. [DOI: 10.1080/00268976.2022.2122889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Yuliang Wang
- School of Basic Sciences for Aviation, Naval Aviation University, Yantai, People’s Republic of China
| | - Hui Li
- School of Basic Sciences for Aviation, Naval Aviation University, Yantai, People’s Republic of China
| | - Jilei Zhang
- School of Basic Sciences for Aviation, Naval Aviation University, Yantai, People’s Republic of China
| | - Cunhai Liu
- School of Basic Sciences for Aviation, Naval Aviation University, Yantai, People’s Republic of China
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2
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McCracken GA, Bucksbaum PH. Ionization induced dynamic alignment of water. J Chem Phys 2020; 152:134308. [PMID: 32268745 DOI: 10.1063/5.0002877] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Two-body dissociation resulting from strong-field double ionization of water is investigated. Two distinct features are seen in the alignment of the fragment momenta with respect to the laser polarization. One feature shows alignment of the H-OH axis with the laser polarization, while the other indicates polarization alignment normal to the H-OH axis. By analyzing kinematic differences between the OH+/D+ and OD+/H+ channels of HOD, these two alignment features are shown to result from dissociation from different states in the dication. Only dissociation from one of these states has an alignment dependence consistent with predictions of sequential strong-field tunneling ionization models. The alignment dependence of dissociation from the other state can only be explained by dynamic alignment launched by the unbending of the molecule during ionization.
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Affiliation(s)
- Gregory A McCracken
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Philip H Bucksbaum
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
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McCracken GA, Kaldun A, Liekhus-Schmaltz C, Bucksbaum PH. Geometric dependence of strong field enhanced ionization in D 2O. J Chem Phys 2017; 147:124308. [PMID: 28964030 DOI: 10.1063/1.4997253] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We have studied strong-field enhanced dissociative ionization of D2O in 40 fs, 800 nm laser pulses with focused intensities of <1-3 × 1015W/cm2 by resolving the charged fragment momenta with respect to the laser polarization. We that observe dication dissociation into OD+/D+ dominates when the polarization is out of the plane of the molecule, whereas trication dissociation into O+/D+/D+ is strongly dominant when the polarization is aligned along the D-D axis. Dication dissociation into O/D+/D+ and O+/D2+ is not seen nor is there any significant fragmentation into multiple ions when the laser is polarized along the C2v symmetry axis of the molecule. Even below the saturation intensity for OD+/D+, the O+/D+/D+ channel has higher yield. By analyzing how the laser field is oriented within the molecular frame for both channels, we show that enhanced ionization is driving the triply charged three body breakup but is not active for the doubly charged two body breakup. We conclude that laser-induced distortion of the molecular potential suppresses multiple ionization along the C2v axis but enhances ionization along the D-D direction.
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Affiliation(s)
- Gregory A McCracken
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Andreas Kaldun
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Chelsea Liekhus-Schmaltz
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Philip H Bucksbaum
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
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Martínez R, Paniagua M, Mayneris-Perxachs J, Gamallo P, González M. Dynamics of the O + H 2+ → OH + + H, OH + H + proton and hydrogen atom transfer reactions on the two lowest potential energy surfaces. Phys Chem Chem Phys 2017; 19:3857-3868. [PMID: 28102392 DOI: 10.1039/c6cp08538e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The dynamics of the title reaction was studied using mainly the quasiclassical trajectory (QCT) method on the ground 12A'' (OH+ channel) and first excited 12A' (OH channel) potential energy surfaces (PESs) employing ab initio analytical representations of the PESs developed by us. Both PESs correspond to exoergic reactions, are barrierless and present a deep minimum along the minimum energy path (MEP). Some extra calculations (cross sections) were also performed with the time dependent quantum real wave packet method at the centrifugal sudden level (RWP-CS method). A broad set of properties as a function of collision energy (Ecol ≤ 0.5 eV) was considered using the QCT method: cross sections, average fractions of energy, product rovibrational distributions, two- and three-vector properties, and the microscopic mechanisms analyzing their influence on the dynamics. The proton transfer channel dominates the reactivity of the system and significant differences between the two reaction channels are found for the vibrational distributions and microscopic mechanisms. The results were interpreted according to the properties of the ground and excited PESs. Moreover, the QCT and RWP-CS cross sections are in rather good agreement for both reaction channels. We hope that this study will encourage the experimentalists to investigate the dynamics of this interesting but scarcely studied system, whose two lowest PESs include the ground and first excited electronic states of the H2O+ cation.
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Affiliation(s)
- Rodrigo Martínez
- Departamento de Química, Universidad de La Rioja, C/Madre de Dios, 51, 26006 Logroño, Spain
| | - Miguel Paniagua
- Departamento de Química Física Aplicada, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente, 7, 28049 Cantoblanco, Spain
| | - Jordi Mayneris-Perxachs
- Departament de Química Física i IQTC, Universitat de Barcelona, C/Martí i Franquès 1, 08028 Barcelona, Spain.
| | - Pablo Gamallo
- Departament de Química Física i IQTC, Universitat de Barcelona, C/Martí i Franquès 1, 08028 Barcelona, Spain.
| | - Miguel González
- Departament de Química Física i IQTC, Universitat de Barcelona, C/Martí i Franquès 1, 08028 Barcelona, Spain.
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Sinha Ray S, Ghosh A, Shit A, Chaudhuri RK, Chattopadhyay S. A simplified ab initio treatment of diradicaloid structures produced from stretching and breaking chemical bonds. Phys Chem Chem Phys 2017; 19:22282-22301. [DOI: 10.1039/c7cp03564k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
With a proper choice of active spaces, the single root perturbation theory employing improved virtual orbitals can flawlessly describe the ground, excited, ionized, and dissociated states having varying degrees of degeneracy at the expense of low computational cost.
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Affiliation(s)
- Suvonil Sinha Ray
- Department of Chemistry
- Indian Institute of Engineering Science and Technology
- Howrah 711103
- India
| | - Anirban Ghosh
- Department of Chemistry
- Indian Institute of Engineering Science and Technology
- Howrah 711103
- India
| | | | | | - Sudip Chattopadhyay
- Department of Chemistry
- Indian Institute of Engineering Science and Technology
- Howrah 711103
- India
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Paniagua M, Martínez R, Gamallo P, González M. Potential energy surfaces and quasiclassical trajectory study of the O + H2+→ OH++ H, OH + H+proton and hydrogen atom transfer reactions and isotopic variants (D2+, HD+). Phys Chem Chem Phys 2014; 16:23594-603. [DOI: 10.1039/c4cp02631d] [Citation(s) in RCA: 23] [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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State specific multireference Møller–Plesset perturbation theory: A few applications to ground, excited and ionized states. Chem Phys 2012. [DOI: 10.1016/j.chemphys.2011.04.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Eroms M, Jungen M, Meyer HD. Nonadiabatic Nuclear Dynamics after Valence Ionization of H2O. J Phys Chem A 2010; 114:9893-901. [DOI: 10.1021/jp103659f] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Matthis Eroms
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, INF 229, D-69120 Heidelberg, Germany, Institut für Physikalische Chemie, Universität Basel, Klingelbergstrasse 80, CH-4056 Basel, Switzerland
| | - Martin Jungen
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, INF 229, D-69120 Heidelberg, Germany, Institut für Physikalische Chemie, Universität Basel, Klingelbergstrasse 80, CH-4056 Basel, Switzerland
| | - Hans-Dieter Meyer
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, INF 229, D-69120 Heidelberg, Germany, Institut für Physikalische Chemie, Universität Basel, Klingelbergstrasse 80, CH-4056 Basel, Switzerland
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Sage AG, Oliver TA, Dixon RN, Ashfold MN. Velocity map imaging studies of the photodissociation of H2O+cations. Mol Phys 2010. [DOI: 10.1080/00268971003596177] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Di Giacomo F, Gianturco FA, Nikitin EE, Schneider F. Proton−Water Charge-Transfer Processes: Follow-Up Study Using Configuration Interaction Calculations. J Phys Chem A 1999. [DOI: 10.1021/jp991313n] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- F. Di Giacomo
- Department of Chemical Engineering and Materials, University of Rome “La Sapienza”, Via del Castro Laurenziano 7, 1-00161 Rome, Italy
| | - F. A. Gianturco
- Department of Chemistry, The University of Rome, Città Universitaria, 00185 Rome, Italy
| | - E. E. Nikitin
- Department of Chemistry, Technion, Israel Institute of Technology, Technion City, Haifa 32000, Israel
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