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Classical trajectory studies of collisional energy transfer. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/b978-0-444-64207-3.00003-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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2
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Affiliation(s)
- Jongbaik Ree
- Department of Chemistry Education; Chonnam National University; Gwangju 61186 Korea
| | - Yoo Hang Kim
- Department of Chemistry; Inha University; Incheon 22212 Korea
| | - Hyung Kyu Shin
- Department of Chemistry; University of Nevada; Nevada 89557 USA
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Conte R, Houston PL, Bowman JM. Trajectory and Model Studies of Collisions of Highly Excited Methane with Water Using an ab Initio Potential. J Phys Chem A 2015; 119:12304-17. [DOI: 10.1021/acs.jpca.5b06595] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Riccardo Conte
- Department
of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322, United States
| | - Paul L. Houston
- School
of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- Department
of Chemistry and Chemical Biology, Cornell University, Baker Laboratory, Ithaca, New York 14852, United States
| | - Joel M. Bowman
- Department
of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322, United States
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Houston PL, Conte R, Bowman JM. A Model For Energy Transfer in Collisions of Atoms with Highly Excited Molecules. J Phys Chem A 2015; 119:4695-710. [DOI: 10.1021/acs.jpca.5b00219] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Paul L. Houston
- School
of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Riccardo Conte
- Department
of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322, United States
| | - Joel M. Bowman
- Department
of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322, United States
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Houston PL, Conte R, Bowman JM. Collisional Energy Transfer in Highly Excited Molecules. J Phys Chem A 2014; 118:7758-75. [DOI: 10.1021/jp506202g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Paul L. Houston
- School of Chemistry
and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332, United States
- Baker Laboratory, Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14852, United States
| | - Riccardo Conte
- Department
of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322, United States
| | - Joel M. Bowman
- Department
of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322, United States
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Conte R, Houston PL, Bowman JM. Trajectory Study of Energy Transfer and Unimolecular Dissociation of Highly Excited Allyl with Argon. J Phys Chem A 2014; 118:7742-57. [DOI: 10.1021/jp5062013] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Riccardo Conte
- Department
of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322, United States
| | - Paul L. Houston
- School
of Chemistry and Biochemistry Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- Department
of Chemistry and Chemical Biology, Cornell University, Baker Laboratory, Ithaca, New York 14852, United States
| | - Joel M. Bowman
- Department
of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322, United States
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Vess E, Anderson C, Awadalla V, Estes E, Jeon C, Wallace C, Hu X, Havey D. Investigation of an energy-gap model for photoacoustic O2 A-band spectra: H2O calibration near 7180cm−1. Chem Phys 2012. [DOI: 10.1016/j.chemphys.2012.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Liessmann M, Miller Y, Gerber B, Abel B. Reaction of OH and NO at Low Temperatures in the Presence of Water: the Role of Clusters. Z PHYS CHEM 2011. [DOI: 10.1524/zpch.2011.0181] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
There has been a lot of speculation about the role of water in gas phase reactions involving neutrals, radicals and ions. The reaction of NO and OH has attracted a lot of attention in the past due to its relevance for ozone chemistry in the atmosphere. In the present contribution we report low temperature measurements of the recombination of OH and NO at low temperatures in Laval nozzle expansions between 300 K and 60 K. We find an increase of the bimolecular rate constant in the presence of water of up to 40%. This effect has been attributed to water molecules acting either as an efficient collider releasing energy from the intermediate (in collisions) or – which is more likely for the present experimental conditions – as a cluster partner of the reaction intermediate HONO that also dissipates energy via cluster dissociation, which can in turn both stabilize the reaction intermediate, decrease back reaction to OH and NO, and enh ance finally the overall reaction to the products. The supersaturation of water vapor in the cold Laval nozzle expansion strongly favors the formation of clusters in the nozzle throat; their exact concentration is, however, difficult to estimate due to non-equilibrium conditions. The possible role of clusters in the recombination of OH and NO is investigated using ab initio molecular dynamics calculations. Beyond the reaction intermediate HONO and intramolecular proton transfer events also transient HOON was observed in the theoretical study.
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Affiliation(s)
- Matthias Liessmann
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Leipzig, Deutschland
| | - Yifat Miller
- Ben-Gurion University of Negev, Department of Chemistry, Be er Sheva 84105, Israel
| | - Benny Gerber
- Hebrew University of Jerusalem, Department of Chemistry, Jerusalem, Israel
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Analytical solution of the master equation with the transition probability derived from dynamical considerations. Chem Phys 2010. [DOI: 10.1016/j.chemphys.2010.05.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Nordholm S, Börjesson LEB, Ming L, Svedung H. Progress on the modeling of the collisional energy transfer mechanism in unimolecular reactions. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bbpc.19971010333] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Bustos-Marún RA, Coronado EA, Ferrero JC. Accounting for the dependence of P(E′,E) on the maximum impact parameter in classical trajectory calculations: Application to the H2O–H2O collisional relaxation. J Chem Phys 2007; 127:154305. [DOI: 10.1063/1.2794760] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Bustos-Marún RA, Coronado EA, Ferrero JC. Building transition probabilities for any condition using reduced cumulative energy transfer functions in H2O–H2O collisions. J Chem Phys 2007; 126:124305. [PMID: 17411121 DOI: 10.1063/1.2430713] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The energy transfer process between highly vibrationally excited H(2)O in thermal equilibrium with a gas bath of H(2)O at different internal energies and temperatures has been studied by classical trajectory calculations. The results were analyzed using a cumulative probability distribution Q(DeltaE) of the amount of energy transferred, obtained by direct count of the number of trajectories that transfer an amount of energy equal to or greater than a certain value DeltaE. Scaling Q(DeltaE) in terms of the mean down and up energies transferred for each group of trajectories results in a unique distribution. This fact and the use of detailed balance constrains were used to propose a methodology that make it possible to build the whole P(E('),E) for any condition by knowing DeltaE and a series of parameters that depend only on the system under study.
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Affiliation(s)
- Raúl A Bustos-Marún
- Centro Láser de Ciencias Moleculares, INFIQC, Universidad Nacional de Córdoba, Cordoba, Argentina
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Nilsson D, Nordholm S. Statistical Theory of Collisional Energy Transfer in Molecular Collisions. trans-Stilbene Deactivation by Argon, Carbon Dioxide, and n-Heptane. J Phys Chem A 2006; 110:3289-96. [PMID: 16509655 DOI: 10.1021/jp055144k] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Recent advances in experimental techniques have made it possible to measure the full conditional probability density P(E, E') of the energy transfer between two colliding molecules in the gas phase, one of which is highly energized and the other in thermal equilibrium at a given temperature. Data have now become available for trans-stilbene deactivation by the three bath gas molecules Ar, CO2, and n-heptane (C7H16). The initial energies of trans-stilbene are set to 10 000, 20 000, 30 000, and 40 000 cm (-1). The results show that exceptionally large amounts of energy are transferred in each collision. By application of our partially ergodic collision theory (PECT), we find that the energy transfer efficiency betaE ranges from a rather normal value of 0.15 for n-heptane at the highest excitation energy to 0.93-nearly in the ergodic collision limit-for the argon bath gas at high excitation energy. Generally, the PECT produces a good fit of the data except for the nearly elastic peak in the case of n-heptane, where PECT produces a rounded and downshifted peak in contrast to a sharply defined elastic maximum of the monoexponential functional fit produced from the original experimental data obtained by kinetically controlled selective ionization in the work of the group of Luther in Göttingen. This problem is analyzed and found to be related partly to the lack of treatment of glancing collisions in the theory with a remaining uncertainty due to the weak dependence of energy transfer efficiency on nearly elastic collisions. A summary of the present state of understanding shows that collisional activation and deactivation of reactant molecules is more efficient and more statistical than has been previously realized.
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Affiliation(s)
- Daniel Nilsson
- Department of Chemistry, Göteborg University, SE-412 96 Göteborg, Sweden
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Bustos Marún RA, Coronado EA, Ferrero JC. Fitting complex potential energy surfaces to simple model potentials: application of the simplex-annealing method. J Comput Chem 2005; 26:523-31. [PMID: 15726571 DOI: 10.1002/jcc.20168] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A stochastic method of optimization, which combines simulated annealing with simplex, is implemented to fit the parameters of a simple model potential. The main characteristic of the method is that it explores the whole space of the parameters of the model potential, and therefore it is very efficient in locating the global minimum of the cost function, in addition to being independent of the initial guess of the parameters. The method is employed to fit the complex intermolecular potential energy surface of the dimer of water, using as a reference the spectroscopic quality anisotropic site-site potential of Feller et al. The simple model potential chosen for its reparameterization is the MCY model potential of Clementi et al. The quality of the fit is assessed by comparing the geometry of the minimum, the harmonic frequencies, and the second virial coefficients of the parameterized potential with the reference one. Finally, to prove more rigorously the robustness of this method, it is compared with standard nonstochastic methods of optimization.
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Affiliation(s)
- Raúl A Bustos Marún
- INFIQC, Departamento de Fisicoquímica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba (5000) Argentina
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Hold U, Lenzer T, Luther K, Symonds AC. Collisional energy transfer probabilities of highly excited molecules from KCSI. III. Azulene: P(E′,E) and moments of energy transfer for energies up to 40 000 cm−1 via self-calibrating experiments. J Chem Phys 2003. [DOI: 10.1063/1.1622382] [Citation(s) in RCA: 49] [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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Nilsson D, Nordholm S. Modeling energy transfer in molecular collisions: Statistical theory versus experiment for highly excited toluene and azulene. J Chem Phys 2003. [DOI: 10.1063/1.1622383] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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17
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Nilsson D, Nordholm S. Statistical model of energy transfer in molecular collisions: De-energization of highly excited toluene. J Chem Phys 2002. [DOI: 10.1063/1.1458925] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ohara T. Intermolecular energy transfer in liquid water and its contribution to heat conduction: A molecular dynamics study. J Chem Phys 1999. [DOI: 10.1063/1.480025] [Citation(s) in RCA: 48] [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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Westergren J, Grönbeck H, Rosén A, Nordholm S. Statistical theory of cluster cooling in rare gas. I. Energy transfer analysis for palladium clusters in helium. J Chem Phys 1998. [DOI: 10.1063/1.477654] [Citation(s) in RCA: 33] [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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Heidelbach C, Fedchenia II, Schwarzer D, Schroeder J. Molecular-dynamics simulation of collisional energy transfer from vibrationally highly excited azulene in compressed CO2. J Chem Phys 1998. [DOI: 10.1063/1.476474] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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Börjesson L, Ming L, Nordholm S. The PEMET model of collisional energy transfer in unimolecular reactions comparison with molecular dynamics simulation. Chem Phys 1997. [DOI: 10.1016/s0301-0104(97)00162-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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