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Affiliation(s)
- J.-M. Mestdagh
- a Laboratoire Francis Perrin (CNRS-URA-2453) , DSM/DRECAM/Service des Photons , Atomes et Molécules, C.E.A. Saclay, Gif-sur-Yvette cedex , F-91191 , France
| | - B. Soep
- a Laboratoire Francis Perrin (CNRS-URA-2453) , DSM/DRECAM/Service des Photons , Atomes et Molécules, C.E.A. Saclay, Gif-sur-Yvette cedex , F-91191 , France
| | - M.-A. Gaveau
- a Laboratoire Francis Perrin (CNRS-URA-2453) , DSM/DRECAM/Service des Photons , Atomes et Molécules, C.E.A. Saclay, Gif-sur-Yvette cedex , F-91191 , France
| | - J.-P. Visticot
- a Laboratoire Francis Perrin (CNRS-URA-2453) , DSM/DRECAM/Service des Photons , Atomes et Molécules, C.E.A. Saclay, Gif-sur-Yvette cedex , F-91191 , France
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2
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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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4
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Rinaldi CA, Gasmi K, Skowronek S, González Ureña A. Isotopic and internal CX3 (X = D,H) rotational motion effects in the Ba...FCX3 + h nu --> BaF + CX3 intracluster reactions. J Chem Phys 2006; 124:244309. [PMID: 16821979 DOI: 10.1063/1.2208618] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Photodepletion and action spectra of the laser-induced Ba...FCD3 fragmentation have been measured over the 16 075-16 380 cm(-1) range. The observed band and peak structures allowed us to estimate the vibrational and rotational structures of the excited complex at the transition state configuration. The relative reaction probability P(R)(E) for the intracluster Ba...FCD3 + h nu --> BaF + CD3 reaction has been determined over the cited energy range. P(R)(E) shows a peak structure with an energy spacing of 8.9 cm(-1) which was attributed to an internal rotation of the CD3 group in the intermediate state. A comparison with previous Ba...FCH3 photofragmentation spectra reveals the dynamical role of the internal CX3 (X = H,D) motion which is manifested by the presence of rotational resonances in the laser-induced intracluster reaction.
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Affiliation(s)
- C A Rinaldi
- Unidad de Láseres y Haces Moleculares, Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII-1, 28040 Madrid, Spain
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5
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Gaveau MA, Gloaguen E, Fournier PR, Mestdagh JM. Transition State Spectroscopy of the Photoinduced Ca + CH3F Reaction. 1. A Cluster Isolated Chemical Reaction Study. J Phys Chem A 2005; 109:9494-8. [PMID: 16866399 DOI: 10.1021/jp053128h] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The "cluster isolated chemical reactions" technique is used to examine the dynamics of the photoinduced reaction producing electronically excited CaF when 1:1 Ca-CH(3)F complexes are deposited at the surface of large argon clusters. This technique ensures quantitatively that 1:1 complexes are actually at the origin of the observed signals. The reaction is monitored by observing the CaF chemiluminescence while scanning the photoexcitation laser. The resulting action spectrum contains information about the absorption bands of the complex, filtered by the dynamics of the reaction. The observations suggest a profound alteration of the calcium electronic structure and a control of the reaction by the CF stretch in CH(3)F.
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Affiliation(s)
- M-A Gaveau
- Laboratoire Francis Perrin (CNRS-URA-2453), DSM/DRECAM/Service des Photons, Atomes et Molécules, C.E.A. Saclay, F-91191 Gif-sur-Yvette Cedex, France
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6
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Aguado A, Paniagua M, Sanz C, Roncero O. Transition state spectroscopy of the excited electronic states of Li–HF. J Chem Phys 2003. [DOI: 10.1063/1.1618223] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Gasmi K, Skowronek S, González Ureña A. Quantum interferences in the Ba⋯FCH3(B)+hν→BaF+CH3 intracluster reaction. Chem Phys Lett 2003. [DOI: 10.1016/s0009-2614(03)00992-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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8
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Bound and quasi-bound states of the Li⋯FH van der Waals molecule: The effects of the potential energy surface and of the basis set superposition error. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s0166-1280(02)00219-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Aguado A, Lara M, Paniagua M, Roncero O. Exploring the transition state for the Li+HF→LiF+H reaction through the A←X absorption spectrum and X←A stimulated emission pumping. J Chem Phys 2001. [DOI: 10.1063/1.1340564] [Citation(s) in RCA: 14] [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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10
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Mrugała F, Piecuch P, Špirko V, Bludský O. Lifetimes and dissociation pathways of the quasi-bound states of the Na⋯FH van der Waals molecule. J Mol Struct 2000. [DOI: 10.1016/s0022-2860(00)00586-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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EPR spectroscopy of the radical–molecular complex NH2–HF formed in low temperature chemical reaction of fluorine atoms with NH3 molecules trapped in solid argon. J Mol Struct 2000. [DOI: 10.1016/s0022-2860(99)00300-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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13
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Paniagua M, Aguado A, Lara M, Roncero O. Transition state spectroscopy via infrared excitation of Li⋯HF and Li⋯DF van der Waals precursors. J Chem Phys 1999. [DOI: 10.1063/1.480040] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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14
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Affiliation(s)
- V L Schramm
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York 10461, USA
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15
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Skowronek S, Jiménez JB, González Ureña A. Resonances in the Ba…FCH3+hν→BaF+CH3 reaction probability. J Chem Phys 1999. [DOI: 10.1063/1.479326] [Citation(s) in RCA: 10] [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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Spectroscopy and dynamics of van der Waals reactions: the Ba⋯FCH3∗ photofragmentation channels. Chem Phys Lett 1999. [DOI: 10.1016/s0009-2614(99)00228-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Lara M, Aguado A, Roncero O, Paniagua M. Quantum stereodynamics of the Li+HF(v,j) reactive collision for different initial states of the reagent. J Chem Phys 1998. [DOI: 10.1063/1.477600] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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18
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Paniagua M, Aguado A, Lara M, Roncero O. Transition state spectroscopy on the Li-HF system. J Chem Phys 1998. [DOI: 10.1063/1.476886] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Topaler MS, Truhlar DG, Chang XY, Piecuch P, Polanyi JC. The photoabsorption spectrum of Na⋯FH van der Waals molecule: Comparison of theory and experiment for a harpooning reaction studied by transition state spectroscopy. J Chem Phys 1998. [DOI: 10.1063/1.475970] [Citation(s) in RCA: 35] [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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Topaler MS, Truhlar DG, Chang XY, Piecuch P, Polanyi JC. Potential energy surfaces of NaFH. J Chem Phys 1998. [DOI: 10.1063/1.475344] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Pereira R, Skowronek S, González Ureña A. The photodepletion action spectrum of the (BaF)2 cluster. J Chem Phys 1998. [DOI: 10.1063/1.475842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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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Aguado A, Paniagua M, Lara M, Roncero O. Quantum study of the Li+HF→LiF+H reaction. J Chem Phys 1997. [DOI: 10.1063/1.474145] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Skowronek S, Pereira R, González Ureña A. Spectroscopy and Dynamics of Excited Harpooning Reactions: The Photodepletion Action Spectrum of the Ba···FCH3 Complex. J Phys Chem A 1997. [DOI: 10.1021/jp970385g] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S. Skowronek
- Unidad de Laseres y Haces Moleculares, Instituto Pluridisciplinar, Universidad Complutense de Madrid, Juan XXIII, 1, 28040 Madrid, Spain
| | - R. Pereira
- Unidad de Laseres y Haces Moleculares, Instituto Pluridisciplinar, Universidad Complutense de Madrid, Juan XXIII, 1, 28040 Madrid, Spain
| | - A. González Ureña
- Unidad de Laseres y Haces Moleculares, Instituto Pluridisciplinar, Universidad Complutense de Madrid, Juan XXIII, 1, 28040 Madrid, Spain
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25
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Cheng YC, Chen J, Kleiber PD, Young MA. Photodissociation spectroscopy of Mg2CH4+. J Chem Phys 1997. [DOI: 10.1063/1.474733] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Skowronek S, Pereira R, González Ureña A. Resonances in the photodepletion spectrum of the Ba…FCH3 weakly bound complex. J Chem Phys 1997. [DOI: 10.1063/1.474519] [Citation(s) in RCA: 22] [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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27
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Aguado A, Paniagua M, Lara M, Roncero O. Potential energy surface and wave packet calculations on the Li+HF→LiF+H reaction. J Chem Phys 1997. [DOI: 10.1063/1.473185] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.2] [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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Keller A, Lawruszczuk R, Soep B, Visticot JP. Transition state observation of excited harpoon reactions, within Ca‐HX van der Waals complexes. J Chem Phys 1996. [DOI: 10.1063/1.472301] [Citation(s) in RCA: 53] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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