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Perspectives of Gas Phase Ion Chemistry: Spectroscopy and Modeling. CONDENSED MATTER 2022. [DOI: 10.3390/condmat7030046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The study of ions in the gas phase has a long history and has involved both chemists and physicists. The interplay of their competences with the use of very sophisticated commercial and/or homemade instrumentations and theoretical models has improved the knowledge of thermodynamics and kinetics of many chemical reactions, even if still many stages of these processes need to be fully understood. The new technologies and the novel free-electron laser facilities based on plasma acceleration open new opportunities to investigate the chemical reactions in some unrevealed fundamental aspects. The synchrotron light source can be put beside the FELs, and by mass spectrometric techniques and spectroscopies coupled with versatile ion sources it is possible to really change the state of the art of the ion chemistry in different areas such as atmospheric and astro chemistry, plasma chemistry, biophysics, and interstellar medium (ISM). In this manuscript we review the works performed by a joint combination of the experimental studies of ion–molecule reactions with synchrotron radiation and theoretical models adapted and developed to the experimental evidence. The review concludes with the perspectives of ion–molecule reactions by using FEL instrumentations as well as pump probe measurements and the initial attempt in the development of more realistic theoretical models for the prospective improvement of our predictive capability.
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2
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Regeta K, Kumar S, Cunha T, Mendes M, Lozano AI, Pereira PJS, García G, Moutinho AMC, Bacchus-Montabonel MC, Limão-Vieira P. Combined Experimental and Theoretical Studies on Electron Transfer in Potassium Collisions with CCl 4. J Phys Chem A 2020; 124:3220-3227. [PMID: 32233369 DOI: 10.1021/acs.jpca.0c02076] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Negative ion formation in electron transfer experiments from fast neutral potassium (K) atom collisions with neutral tetrachloromethane (CCl4) molecules has been investigated in the laboratory frame range of 8-1000 eV. Comprehensive calculations on the electronic structure were performed for CCl4 in the presence of a potassium atom and used to help analyze the lowest unoccupied molecular orbitals participating in the collision process. Additionally, K+ energy loss produced in the forward direction has served to further our knowledge on the electronic state spectroscopy of CCl4. A vertical electron affinity of -0.79 ± 0.20 eV has been obtained and assigned to a purely repulsive transition from CCl4 ground state to the 2T2 state of the temporary negative ion yielding Cl- formation. Other features in the energy loss spectrum were observed for the first time and related to Cl2-, CCl2-, and CCl3- formation. Special attention is also given to the unresolved feature corresponding to a positive electron affinity of 0.24 ± 0.2 eV, assigned to a vibrationally hot transition from CCl4 ground state into the triply degenerate 2T2 excited state of the negative ion. The combined time-of-flight mass spectrometry together with K+ energy loss data represents the most comprehensive assignment of the tetrachloromethane anion yields and the role of CCl4 electronic states in collision induced dissociation to date.
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Affiliation(s)
- K Regeta
- Atomic and Molecular Collisions Laboratory, CEFITEC, Department of Physics, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - S Kumar
- Atomic and Molecular Collisions Laboratory, CEFITEC, Department of Physics, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - T Cunha
- Atomic and Molecular Collisions Laboratory, CEFITEC, Department of Physics, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - M Mendes
- Atomic and Molecular Collisions Laboratory, CEFITEC, Department of Physics, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - A I Lozano
- Atomic and Molecular Collisions Laboratory, CEFITEC, Department of Physics, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - P J S Pereira
- Atomic and Molecular Collisions Laboratory, CEFITEC, Department of Physics, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.,Department of Mathematics, Instituto Superior de Engenharia de Lisboa, R. Conselheiro Emídio Navarro 1, 1959-007 Lisboa, Portugal
| | - G García
- Instituto de Fı́sica Fundamental, Consejo Superior de Investigaciones Cientı́ficas (CSIC), Serrano 113-bis, 28006 Madrid, Spain
| | - A M C Moutinho
- Atomic and Molecular Collisions Laboratory, CEFITEC, Department of Physics, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - M-C Bacchus-Montabonel
- Institut Lumière Matière, CNRS, Université Claude Bernard Lyon 1, 69622 Villeurbanne, France
| | - P Limão-Vieira
- Atomic and Molecular Collisions Laboratory, CEFITEC, Department of Physics, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
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Hishiyama N, Hoshino M, Blanco F, García G, Tanaka H. Absolute cross section measurements for the scattering of low- and intermediate-energy electrons from PF3. I. Elastic scattering. J Chem Phys 2017; 147:224308. [DOI: 10.1063/1.5009482] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- N. Hishiyama
- Department of Physics, Sophia University, Chiyoda-ku, Tokyo 102-8554, Japan
| | - M. Hoshino
- Department of Physics, Sophia University, Chiyoda-ku, Tokyo 102-8554, Japan
| | - F. Blanco
- Departamento de Fisica, Atomica, Molecular y Nuclear, Facultad de Ciencias Fisicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - G. García
- Instituto de Fisica Fundamental, Consejo Superior de Investigaciones Científicas, 28006 Madrid, Spain
| | - H. Tanaka
- Department of Physics, Sophia University, Chiyoda-ku, Tokyo 102-8554, Japan
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4
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Barbosa AS, Varella MTDN, Sanchez SD, Ameixa J, Blanco F, García G, Limão-Vieira P, Ferreira da Silva F, Bettega MHF. Theoretical and experimental study on electron interactions with chlorobenzene: Shape resonances and differential cross sections. J Chem Phys 2016; 145:084311. [DOI: 10.1063/1.4961649] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Alessandra Souza Barbosa
- Departamento de Física, Universidade Federal do Paraná, CP 19044, 81531-990 Curitiba, Paraná, Brazil
- Laboratório de Colisões Atómicas e Moleculares, CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Márcio T. do N. Varella
- Instituto de Física, Universidade de São Paulo, Rua do Matão 1731, 05508-090 São Paulo, SP, Brazil
| | - Sergio d’A. Sanchez
- Departamento de Física, Universidade Federal do Paraná, CP 19044, 81531-990 Curitiba, Paraná, Brazil
| | - João Ameixa
- Laboratório de Colisões Atómicas e Moleculares, CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Francisco Blanco
- Departamento de Física Atómica, Molecular y Nuclear, Facultad de Ciencias Físicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Gustavo García
- Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas (CSIC), Serrano 113-bis, 28006 Madrid, Spain
| | - Paulo Limão-Vieira
- Laboratório de Colisões Atómicas e Moleculares, CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Filipe Ferreira da Silva
- Laboratório de Colisões Atómicas e Moleculares, CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Márcio H. F. Bettega
- Departamento de Física, Universidade Federal do Paraná, CP 19044, 81531-990 Curitiba, Paraná, Brazil
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Hoshino M, Limão-Vieira P, Suga A, Kato H, Ferreira da Silva F, Blanco F, García G, Tanaka H. Crossed-beam experiment for the scattering of low- and intermediate-energy electrons from BF3: A comparative study with XF3 (X = C, N, and CH) molecules. J Chem Phys 2015; 143:024313. [DOI: 10.1063/1.4926539] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- M. Hoshino
- Department of Physics, Sophia University, Tokyo 102-8554, Japan
| | - P. Limão-Vieira
- Department of Physics, Sophia University, Tokyo 102-8554, Japan
- Laboratório de Colisões Atómicas e Moleculares, CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - A. Suga
- Department of Physics, Sophia University, Tokyo 102-8554, Japan
| | - H. Kato
- Department of Physics, Sophia University, Tokyo 102-8554, Japan
| | - F. Ferreira da Silva
- Laboratório de Colisões Atómicas e Moleculares, CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - F. Blanco
- Departamento de Fisica Atomica, Molecular y Nuclear, Facultad de Ciencias Fisicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - G. García
- Instituto de Fisica Fundamental, Consejo Superior de Investigaciones Científicas, 28006 Madrid, Spain
| | - H. Tanaka
- Department of Physics, Sophia University, Tokyo 102-8554, Japan
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6
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Hoshino M, Limão-Vieira P, Anzai K, Kato H, Cho H, Mogi D, Tanioka T, Ferreira da Silva F, Almeida D, Blanco F, García G, Ingólfsson O, Tanaka H. Elastic differential cross sections for C₄F₆ isomers in the 1.5-200 eV energy electron impact: similarities with six fluorine containing molecules and evidence of F-atom like scattering. J Chem Phys 2014; 141:124302. [PMID: 25273432 DOI: 10.1063/1.4895903] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We report absolute elastic differential cross sections for electron interactions with the C4F6 isomers, hexafluoro-1,3-butadiene (1,3-C4F6), hexafluoro-2-butyne (2-C4F6), and hexafluorocyclobutene (c-C4F6). The incident electron energy range is 1.5-200 eV, and the scattered electron angular range for the differential measurements varies from 15° to 150°. In all cases the absolute scale of the differential cross section was set using the relative flow technique, with helium as the reference species. Atomic-like behaviour in these scattering systems is shown here for the first time, and is further investigated by comparing the elastic cross sections for the C4F6 isomers with other fluorinated molecules, such as SF6 and CnF6 (n = 2, 3, and 6). We note that for all the six-F containing molecules, the scattering process for electron energies above 30 eV is indistinguishable. Finally, we report results for calculations of elastic differential cross sections for electron scattering from each of these isomers, within an optical potential method and assuming a screened corrected independent atom representation. The level of agreement between these calculations and our measurements is found to be quite remarkable in all cases.
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Affiliation(s)
- M Hoshino
- Department of Physics, Sophia University, Chiyoda-ku, Tokyo 102-8554, Japan
| | - P Limão-Vieira
- Department of Physics, Sophia University, Chiyoda-ku, Tokyo 102-8554, Japan
| | - K Anzai
- Department of Physics, Sophia University, Chiyoda-ku, Tokyo 102-8554, Japan
| | - H Kato
- Department of Physics, Sophia University, Chiyoda-ku, Tokyo 102-8554, Japan
| | - H Cho
- Department of Physics, Chungnam National University, Daejeon 305-764, South Korea
| | - D Mogi
- Research and Marketing Management Dept., New Products Development Div., Kanto Denka, Kogyo Co., Ltd., Chiyoda-ku, Tokyo 101-0063, Japan
| | - T Tanioka
- Shibukawa Development Research Lab., New Products Development Div., Kanto Denka Kogyo Co., Ltd., Shibukawa City, Gunma 377-8513, Japan
| | - F Ferreira da Silva
- Laboratório de Colisões Atómicas e Moleculares, CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - D Almeida
- Laboratório de Colisões Atómicas e Moleculares, CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - F Blanco
- Departamento de Física Atómica, Molecular y Nuclear, Universidad Complutense de Madrid, Avenida Complutense, 28040 Madrid, Spain
| | - G García
- Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas (CSIC), Serrano 113-bis, 28006 Madrid, Spain
| | - O Ingólfsson
- Department of Chemistry, Science Institute, University of Iceland, 107 Reykjavik, Iceland
| | - H Tanaka
- Department of Physics, Sophia University, Chiyoda-ku, Tokyo 102-8554, Japan
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7
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Chiari L, Zecca A, Blanco F, García G, Perkins MV, Buckman SJ, Brunger MJ. Cross Sections for Positron Impact with 2,2,4-Trimethylpentane. J Phys Chem A 2014; 118:6466-72. [DOI: 10.1021/jp502632m] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Luca Chiari
- ARC
Centre of Excellence for Antimatter−Matter Studies, School
of Chemical and Physical Sciences, Flinders University, Adelaide, SA 5001, Australia
| | - Antonio Zecca
- Department
of Physics, University of Trento, Via Sommarive 14, I-38123 Povo, Trento, Italy
| | - Francisco Blanco
- Departamento
de Física Atómica, Molecular y Nuclear, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Gustavo García
- Instituto de Física Fundamental, Consejo Superior
de Investigationes Científicas (CSIC), Serrano 113-bis, E-28006 Madrid, Spain
| | - Michael V. Perkins
- School
of Chemical and Physical Sciences, Flinders University, Adelaide, SA 5001, Australia
| | - Stephen J. Buckman
- ARC
Centre of Excellence for Antimatter−Matter Studies, Research
School of Physics and Engineering, Australian National University, Canberra, ACT 0200, Australia
- Institute
of Mathematical Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Michael J. Brunger
- ARC
Centre of Excellence for Antimatter−Matter Studies, School
of Chemical and Physical Sciences, Flinders University, Adelaide, SA 5001, Australia
- Institute
of Mathematical Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia
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Sanz A, Fuss M, Blanco F, Mašín Z, Gorfinkiel JD, Carelli F, Sebastianelli F, Gianturco F, García G. Electron scattering cross section calculations for polar molecules over a broad energy range. Appl Radiat Isot 2014; 83 Pt B:57-67. [DOI: 10.1016/j.apradiso.2013.01.031] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 01/22/2013] [Accepted: 01/22/2013] [Indexed: 10/27/2022]
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9
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Hoshino M, Horie M, Kato H, Blanco F, García G, Limão-Vieira P, Sullivan JP, Brunger MJ, Tanaka H. Cross sections for elastic scattering of electrons by CF3Cl, CF2Cl2, and CFCl3. J Chem Phys 2013; 138:214305. [DOI: 10.1063/1.4807610] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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10
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Murai H, Ishijima Y, Mitsumura T, Sakamoto Y, Kato H, Hoshino M, Blanco F, García G, Limão-Vieira P, Brunger MJ, Buckman SJ, Tanaka H. A comprehensive and comparative study of elastic electron scattering from OCS and CS2in the energy region from 1.2 to 200 eV. J Chem Phys 2013; 138:054302. [DOI: 10.1063/1.4788666] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- H Murai
- Department of Physics, Sophia University, Tokyo 102-8554, Japan
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Kato H, Suga A, Hoshino M, Blanco F, García G, Limão-Vieira P, Brunger MJ, Tanaka H. Elastic cross sections for electron scattering from GeF4: Predominance of atomic-F in the high-energy collision dynamics. J Chem Phys 2012; 136:134313. [DOI: 10.1063/1.3699040] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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