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Pranjal P, González-Vázquez J, Bello RY, Martín F. Resonant Photoionization of CO 2 up to the Fourth Ionization Threshold. J Phys Chem A 2024; 128:182-190. [PMID: 38118433 PMCID: PMC10788902 DOI: 10.1021/acs.jpca.3c06947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 12/22/2023]
Abstract
We present a comprehensive theoretical study of valence-shell photoionization of the CO2 molecule by using the XCHEM methodology. This method makes use of a fully correlated molecular electronic continuum at a level comparable to that provided by state-of-the-art quantum chemistry packages in bound-state calculations. The calculated total and angularly resolved photoionization cross sections are presented and discussed, with particular emphasis on the series of autoionizing resonances that appear between the first and the fourth ionization thresholds. Ten series of Rydberg autoionizing states are identified, including some not previously reported in the literature, and their energy positions and widths are provided. This is relevant in the context of ongoing experimental and theoretical efforts aimed at observing in real-time (attosecond time scale) the autoionization dynamics in molecules.
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Affiliation(s)
- Prateek Pranjal
- Instituto
Madrileño de Estudios Avanzados en Nanociencia (IMDEA-Nanociencia),
Cantoblanco, 28049 Madrid, Spain
| | - Jesús González-Vázquez
- Departamento
de Química, Módulo 13, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Roger Y. Bello
- Departamento
de Química Física Aplicada, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Fernando Martín
- Instituto
Madrileño de Estudios Avanzados en Nanociencia (IMDEA-Nanociencia),
Cantoblanco, 28049 Madrid, Spain
- Departamento
de Química, Módulo 13, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
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2
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Falcetta MF, Fair MC, Slimak SR, Jordan KD, Sommerfeld T. Use of bound state methods to calculate partial and total widths of shape resonances. Phys Chem Chem Phys 2023; 25:31028-31039. [PMID: 37938910 DOI: 10.1039/d3cp04154a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
In this work we study the 2Π resonances of a two-site model system designed to mimic a smooth transition from the 2Πg temporary anion of N2 to the 2Π temporary anion of CO. The model system possesses the advantage that scattering and bound state (L2) methods can be directly compared without obfuscating electron-correlation effects. Specifically, we compare resonance parameters obtained with the complex Kohn variational (CKV) method with those from stabilization, complex absorbing potential, and regularized analytical continuation calculations. The CKV calculations provide p-wave and d-wave widths, the sum of which provides a good approximation of the total width. Then we demonstrate that the width obtained with modified bound state methods depends on the basis set employed: It can be the total width, a partial width, or an ill-defined sum of partial widths. Provided the basis set is chosen appropriately, widths from bound state methods agree well with the CKV results.
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Affiliation(s)
| | - Mark C Fair
- Departments of Mechanical Engineering and Physics, Grove City College, Grove City, PA 16127, USA
| | - Stephen R Slimak
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA.
| | - Kenneth D Jordan
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA.
| | - Thomas Sommerfeld
- Department of Chemistry, Southeastern Louisiana University, Hammond, LA 70402, USA
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3
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Borràs VJ, González-Vázquez J, Argenti L, Martín F. Molecular-Frame Photoelectron Angular Distributions of CO in the Vicinity of Feshbach Resonances: An XCHEM Approach. J Chem Theory Comput 2021; 17:6330-6339. [PMID: 34528784 DOI: 10.1021/acs.jctc.1c00480] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The advent of ultrashort XUV pulses is pushing for the development of accurate theoretical calculations to describe ionization of molecules in regions where electron correlation plays a significant role. Here, we present an extension of the XCHEM methodology to evaluate laboratory- and molecular-frame photoelectron angular distributions in the region where Feshbach resonances are expected to appear. The performance of the method is demonstrated in the CO molecule, for which information on Feshbach resonances is very scarce. We show that photoelectron angular distributions are dramatically affected by the presence of resonances, to the point that they can completely reverse the preferred electron emission direction observed in direct nonresonant photoionization. This is the consequence of significant changes in the electronic structure of the molecule when resonances decay, an effect that is mostly driven by electron correlation in the ionization continuum. The present methodology can thus be helpful for the interpretation of angularly resolved photoionization time delays in this and more complex molecules.
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Affiliation(s)
- Vicent J Borràs
- Departamento de Química, Universidad Autónoma de Madrid, Módulo 13, 28049 Madrid, Spain
| | | | - Luca Argenti
- Department of Physics and CREOL, University of Central Florida, Orlando, Florida 32186, United States
| | - Fernando Martín
- Departamento de Química, Universidad Autónoma de Madrid, Módulo 13, 28049 Madrid, Spain.,Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA-Nanociencia), Cantoblanco, 28049 Madrid, Spain.,Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049 Madrid, Spain
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Douguet N, Schneider BI, Argenti L. Application of the complex Kohn variational method to attosecond spectroscopy. PHYSICAL REVIEW. A 2018; 98:10.1103/PhysRevA.98.023403. [PMID: 33313458 PMCID: PMC7727740 DOI: 10.1103/physreva.98.023403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The complex Kohn variational method is extended to compute light-driven electronic transitions between continuum wave functions in atomic and molecular systems. This development enables the study of multiphoton processes in the perturbative regime for arbitrary light polarization. As a proof of principle, we apply the method to compute the photoelectron spectrum arising from the pump-probe two-photon ionization of helium induced by a sequence of extreme ultraviolet and infrared light pulses. We compare several two-photon ionization pump-probe spectra, resonant with the (2s2p) 1P 1 o Feshbach resonance, with independent simulations based on the atomic B-spline close-coupling STOCK code, and find good agreement between the two approaches. This finite-pulse perturbative approach is a step towards the ab initio study of weak-field attosecond processes in polyelectronic molecules.
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Affiliation(s)
- N Douguet
- Department of Physics, University of Central Florida, Orlando, Florida 32186, USA
| | - B I Schneider
- Physics Division, National Science Foundation, Gaithersburg, Maryland 20899, USA
| | - L Argenti
- Department of Physics, University of Central Florida, Orlando, Florida 32186, USA
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Toffoli D, Decleva P. A Multichannel Least-Squares B-Spline Approach to Molecular Photoionization: Theory, Implementation, and Applications within the Configuration–Interaction Singles Approximation. J Chem Theory Comput 2016; 12:4996-5008. [DOI: 10.1021/acs.jctc.6b00627] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Daniele Toffoli
- Dipartimento
di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Via L. Giorgieri
1, I-34127, Trieste, Italy
| | - Piero Decleva
- Dipartimento
di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Via L. Giorgieri
1, I-34127, Trieste, Italy
- CNR-IOM DEMOCRITOS, Trieste, Italy
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Khamesian M, Douguet N, Fonseca Dos Santos S, Dulieu O, Raoult M, Brigg WJ, Kokoouline V. Formation of CN^{-}, C_{3}N^{-}, and C_{5}N^{-} Molecules by Radiative Electron Attachment and their Destruction by Photodetachment. PHYSICAL REVIEW LETTERS 2016; 117:123001. [PMID: 27689267 DOI: 10.1103/physrevlett.117.123001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Indexed: 06/06/2023]
Abstract
The existence of negative ions in interstellar clouds has been associated for several decades with the process of radiative electron attachment. In this Letter, we report compelling evidence supporting the fact that the radiative attachment of a low-energy electron is inefficient to form the carbon chain anions CN^{-}, C_{3}N^{-}, and C_{5}N^{-} detected in interstellar clouds. The validity of the approach is confirmed by good agreement with experimental data obtained for the inverse photodetachment process, which represents the major cause of anion destruction in interstellar space. As a consequence, we suggest alternative models that could explain the formation of anions.
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Affiliation(s)
- Marjan Khamesian
- Department of Physics, University of Central Florida, Orlando, Florida 32816, USA
| | - Nicolas Douguet
- Department of Physics and Astronomy, Drake University, Des Moines, Iowa 50311, USA
| | | | - Olivier Dulieu
- Laboratoire Aimé Cotton, CNRS, Université Paris-Sud, ENS Cachan, Université Paris-Saclay, bâtiment 505, Campus d'Orsay, 91405 Orsay cedex, France
| | - Maurice Raoult
- Laboratoire Aimé Cotton, CNRS, Université Paris-Sud, ENS Cachan, Université Paris-Saclay, bâtiment 505, Campus d'Orsay, 91405 Orsay cedex, France
| | - Will J Brigg
- Department of Physics & Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
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Douguet N, Fonseca dos Santos S, Raoult M, Dulieu O, Orel AE, Kokoouline V. Theoretical study of radiative electron attachment to CN, C2H, and C4H radicals. J Chem Phys 2015; 142:234309. [DOI: 10.1063/1.4922691] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Nicolas Douguet
- Department of Chemical Engineering and Materials Science, University of California at Davis, Davis, California 95616, USA
| | - S. Fonseca dos Santos
- Department of Chemical Engineering and Materials Science, University of California at Davis, Davis, California 95616, USA
| | - Maurice Raoult
- Laboratoire Aimé Cotton, CNRS/Université Paris-Sud/ENS Cachan, bât. 505, Campus d’Orsay, 91405 Orsay Cedex, France
| | - Olivier Dulieu
- Laboratoire Aimé Cotton, CNRS/Université Paris-Sud/ENS Cachan, bât. 505, Campus d’Orsay, 91405 Orsay Cedex, France
| | - Ann E. Orel
- Department of Chemical Engineering and Materials Science, University of California at Davis, Davis, California 95616, USA
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Jose J, Lucchese RR, Rescigno TN. Interchannel coupling effects in the valence photoionization of SF6. J Chem Phys 2015; 140:204305. [PMID: 24880278 DOI: 10.1063/1.4876576] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The complex Kohn and polyatomic Schwinger variational techniques have been employed to illustrate the interchannel coupling correlation effects in the valence photoionization dynamics of SF6. Partial photoionization cross sections and asymmetry parameters of six valence subshells (1t1g, 5t1u, 1t2u, 3eg, 1t2g, 4t1u) are discussed in the framework of several theoretical and experimental studies. The complex Kohn results are in rather good agreement with experimental results, indicative of the fact that the interchannel coupling effects alter the photoionization dynamics significantly. We find that the dominant effect of interchannel coupling is to reduce the magnitude of shape resonant cross sections near the threshold and to induce resonant features in other channels to which resonances are coupled. The long-standing issue concerning ordering of the valence orbitals is addressed and confirmed 4t1u (6)1t2g (6)3eg (4)(5t1u (6)+1t2u (6)) 1t1g (6) as the most likely ordering.
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Affiliation(s)
- J Jose
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, USA
| | - R R Lucchese
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, USA
| | - T N Rescigno
- Lawrence Berkeley National Laboratory, Chemical Sciences, Berkeley, California 94720, USA
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10
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Douguet N, Santos SFD, Kokoouline V, Orel A. Simplified model to describe the dissociative recombination of linear polyatomic ions of astrophysical interest. EPJ WEB OF CONFERENCES 2015. [DOI: 10.1051/epjconf/20158407003] [Citation(s) in RCA: 5] [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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11
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Fonseca dos Santos S, Douguet N, Kokoouline V, Orel AE. Scattering matrix approach to the dissociative recombination of HCO+ and N2H+. J Chem Phys 2014; 140:164308. [DOI: 10.1063/1.4871982] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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12
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Gallup GA. Stable negative ions and shape resonances in a series of organic molecules. J Chem Phys 2014; 139:104308. [PMID: 24050345 DOI: 10.1063/1.4819972] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
We report on the theoretical determination of low-lying shape resonances in a selected set of seven molecules. The finite element discrete model method is used and the absolute differences between calculated and experimental values, where known, are ≲0.15 eV for the resonances lowest in energy. Difficulties expected with the higher calculated values are discussed. This article reports results for ortho-benzyne, benzene, naphthalene, anthracene, styrene, formamide, and acetamide. Comparisons are made with a few other calculations, again where available.
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Affiliation(s)
- G A Gallup
- Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0299, USA
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14
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15
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Rescigno TN, McCurdy CW. Effective potential methods in variational treatments of electron‐molecule collisions. I. Theoretical formulation. J Chem Phys 1996. [DOI: 10.1063/1.470881] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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16
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Gianturco FA, Rodriguez-Ruiz JA, Sanna N. Elastic scattering of electrons by methane molecules. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1995; 52:1257-1265. [PMID: 9912364 DOI: 10.1103/physreva.52.1257] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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17
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Rescigno TN. Low-energy electron collision processes in NF3. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1995; 52:329-333. [PMID: 9912250 DOI: 10.1103/physreva.52.329] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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18
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Rescigno TN. Low-energy electron-collision processes in molecular chlorine. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1994; 50:1382-1389. [PMID: 9911031 DOI: 10.1103/physreva.50.1382] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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19
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Gil TJ, Lengsfield BH, McCurdy CW, Rescigno TN. Ab initio complex Kohn calculations of dissociative excitation of methane: Close-coupling convergence studies. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1994; 49:2551-2560. [PMID: 9910532 DOI: 10.1103/physreva.49.2551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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20
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Gil TJ, Rescigno TN, McCurdy CW, Lengsfield BH. Ab initio complex Kohn calculations of dissociative excitation of water. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1994; 49:2642-2650. [PMID: 9910542 DOI: 10.1103/physreva.49.2642] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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21
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Wilhelmy I, Ackermann L, Görling A, Rösch N. Molecular photoionization cross sections by the Lobatto technique. I. Valence photoionization. J Chem Phys 1994. [DOI: 10.1063/1.466475] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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22
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Reeves MS, Chatfield DC, Truhlar DG. Preconditioned complex generalized minimal residual algorithm for dense algebraic variational equations in quantum reactive scattering. J Chem Phys 1993. [DOI: 10.1063/1.465182] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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23
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Gil TJ, McCurdy CW, Rescigno TN, Lengsfield BH. Polarization and correlation effects in elastic electron-Li2 scattering. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1993; 47:255-263. [PMID: 9908918 DOI: 10.1103/physreva.47.255] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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24
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Sun W, McCurdy CW, Lengsfield BH. Ab initio study of low‐energy electron‐ethane scattering. J Chem Phys 1992. [DOI: 10.1063/1.463781] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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25
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Alhassid Y, Shao B. Algebraic eikonal approach to electron-molecule scattering. I. Generalized formalism. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1992; 46:3978-3990. [PMID: 9908594 DOI: 10.1103/physreva.46.3978] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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26
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McCurdy CW, Rescigno TN. Beyond the primitive separable exchange approximation in electron-molecule scattering. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1992; 46:255-260. [PMID: 9907857 DOI: 10.1103/physreva.46.255] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Rescigno TN, Lengsfield BH, McCurdy CW, Parker SD. Ab initio description of polarization in low-energy electron collisions with polar molecules: Application to electron-NH3 scattering. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1992; 45:7800-7809. [PMID: 9906868 DOI: 10.1103/physreva.45.7800] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Sun W, McCurdy CW, Lengsfield BH. Theoretical studies of low-energy electron-silane scattering with an ab initio description of target response. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1992; 45:6323-6331. [PMID: 9907753 DOI: 10.1103/physreva.45.6323] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Lynch DL, Schneider BI. Molecular photoionization using the complex Kohn variational method. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1992; 45:4494-4498. [PMID: 9907526 DOI: 10.1103/physreva.45.4494] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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31
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Rescigno TN, Schneider BI. Electron-impact excitation of the T and V states of ethylene: An ab initio study. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1992; 45:2894-2902. [PMID: 9907321 DOI: 10.1103/physreva.45.2894] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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32
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Rösch N, Wilhelmy I. Representation of electronic wavefunctions by Lobatto shape functions: application to the photoionization cross section of H+2. Chem Phys Lett 1992. [DOI: 10.1016/0009-2614(92)85240-b] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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33
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Lengsfield BH, Rescigno TN, McCurdy CW. Ab initio study of low-energy electron-methane scattering. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1991; 44:4296-4308. [PMID: 9906467 DOI: 10.1103/physreva.44.4296] [Citation(s) in RCA: 63] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Orel AE, Rescigno TN, Lengsfield BH. Dissociative excitation of HeH+ by electron impact. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1991; 44:4328-4335. [PMID: 9906471 DOI: 10.1103/physreva.44.4328] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Lengsfield BH, Rescigno TN. Electron-molecule close coupling with correlated target wave functions: Application to impact dissociation of F2. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1991; 44:2913-2920. [PMID: 9906290 DOI: 10.1103/physreva.44.2913] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Schneider BI, Rescigno TN, Lengsfield BH, McCurdy CW. Accurate ab initio treatment of low-energy electron collisions with ethylene. PHYSICAL REVIEW LETTERS 1991; 66:2728-2730. [PMID: 10043601 DOI: 10.1103/physrevlett.66.2728] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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37
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Winstead C, Hipes PG, Lima MAP, McKoy V. Studies of electron collisions with polyatomic molecules using distributed‐memory parallel computers. J Chem Phys 1991. [DOI: 10.1063/1.460480] [Citation(s) in RCA: 67] [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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Parker SD, McCurdy CW, Rescigno TN, Lengsfield BH. Electronic excitation of H2 by electron impact: Close-coupling calculations using the complex Kohn variational method. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1991; 43:3514-3521. [PMID: 9905436 DOI: 10.1103/physreva.43.3514] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Rescigno TN, Orel AE. Continuum basis functions in the complex Kohn variational method. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1991; 43:1625-1628. [PMID: 9905193 DOI: 10.1103/physreva.43.1625] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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40
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Lynch DL, Schneider BI. Generalization of the linear algebraic method to three dimensions. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1991; 43:172-176. [PMID: 9904767 DOI: 10.1103/physreva.43.172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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41
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Winstead C, McKoy V. Low-energy electron scattering by silane (SiH4). PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1990; 42:5357-5362. [PMID: 9904668 DOI: 10.1103/physreva.42.5357] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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42
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Orel AE, Rescigno TN, Lengsfield III. Theoretical study of electron-impact excitation of N2+. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1990; 42:5292-5297. [PMID: 9904658 DOI: 10.1103/physreva.42.5292] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Schneider BI, Rescigno TN, McCurdy CW. Resonant vibrational excitation of H2CO by low-energy electron impact. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1990; 42:3132-3134. [PMID: 9904387 DOI: 10.1103/physreva.42.3132] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Rescigno TN, Lengsfield BH, McCurdy CW. Electronic excitation of formaldehyde by low-energy electrons: A theoretical study using the complex Kohn variational method. PHYSICAL REVIEW A 1990; 41:2462-2467. [PMID: 9903378 DOI: 10.1103/physreva.41.2462] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Orel AE, Rescigno TN. Variational expressions for first-order properties involving continuum wave functions. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1990; 41:1695-1697. [PMID: 9903269 DOI: 10.1103/physreva.41.1695] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Lima MA, Brescansin LM, Winstead C, McKoy V. Applications of the Schwinger multichannel method to electron-molecule collisions. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1990; 41:327-332. [PMID: 9902873 DOI: 10.1103/physreva.41.327] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Yang W, Peet AC, Miller WH. A collocation approach for quantum scattering based on the S‐matrix version of the Kohn variational principle. J Chem Phys 1989. [DOI: 10.1063/1.457277] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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