1
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Menéndez M, Garcia E, Lara M, Jambrina PG, Aoiz FJ. Li + HF and Li + HCl Reactions Revisited I: QCT Calculations and Simulation of Experimental Results. J Phys Chem A 2023; 127:6924-6944. [PMID: 37579497 PMCID: PMC10461305 DOI: 10.1021/acs.jpca.3c03763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 07/20/2023] [Indexed: 08/16/2023]
Abstract
The Li + HF and Li + HCl reactions share some common features. They have the same kinematics, relatively small barrier heights, bent transition states, and are both exothermic when the zero point energy is considered. Nevertheless, the pioneering crossed beam experiments by Lee and co-workers in the 80s (Becker et al., J. Chem. Phys. 1980, 73, 2833) revealed that the dynamics of the two reactions differ significantly, especially at low collision energies. In this work, we present theoretical simulations of their results in the laboratory frame (LAB), based on quasiclassical trajectories and obtained using accurate potential energy surfaces. The calculated LAB angular distributions and time-of-flight spectra agree well with the raw experimental data, although our simulations do not reproduce the experimentally derived center-of-mass (CM) differential cross section and velocity distributions. The latter were derived by forward convolution fitting under the questionable assumption that the CM recoil velocity and scattering angle distribution were uncoupled, while our results show that the coupling between them is relevant. Some important insights into the reaction mechanism discussed in the article by Becker et al. had not been contrasted with those that can be extracted from the theoretical results. Among them, the correlation between the angular momenta involved in the reactions has also been examined. Given the kinematics of both systems, the reagent orbital angular momentum, l , is almost completely transformed into the rotation of the product diatom, j'. However, contrary to the coplanar mechanism proposed in the original paper, we find that the initial and final relative orbital angular momenta are not necessarily parallel. Both reactions are found to be essentially direct, although about 15% of the LiFH complexes live longer than 200 fs.
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Affiliation(s)
- Marta Menéndez
- Departamento
de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Ernesto Garcia
- Departamento
de Química Física, Universidad
del País Vasco (UPV/EHU), 01006 Vitoria, Spain
| | - Manuel Lara
- Departamento
de Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, 28039 Madrid, Spain
| | - Pablo G. Jambrina
- Departamento
de Química Física, Facultad de Ciencias Químicas, Universidad de Salamanca, 37008 Salamanca, Spain
| | - F. Javier Aoiz
- Departamento
de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
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2
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Liang P, de Aragão EVF, Giani L, Mancini L, Pannacci G, Marchione D, Vanuzzo G, Faginas-Lago N, Rosi M, Skouteris D, Casavecchia P, Balucani N. OH( 2Π) + C 2H 4 Reaction: A Combined Crossed Molecular Beam and Theoretical Study. J Phys Chem A 2023. [PMID: 37207281 DOI: 10.1021/acs.jpca.2c08662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The reaction between the ground-state hydroxyl radical, OH(2Π), and ethylene, C2H4, has been investigated under single-collision conditions by the crossed molecular beam scattering technique with mass-spectrometric detection and time-of-flight analysis at the collision energy of 50.4 kJ/mol. Electronic structure calculations of the underlying potential energy surface (PES) and statistical Rice-Ramsperger-Kassel-Marcus (RRKM) calculations of product branching fractions on the derived PES for the addition pathway have been performed. The theoretical results indicate a temperature-dependent competition between the anti-/syn-CH2CHOH (vinyl alcohol) + H, CH3CHO (acetaldehyde) + H, and H2CO (formaldehyde) + CH3 product channels. The yield of the H-abstraction channel could not be quantified with the employed methods. The RRKM results predict that under our experimental conditions, the anti- and syn-CH2CHOH + H product channels account for 38% (in similar amounts) of the addition mechanism yield, the H2CO + CH3 channel for ∼58%, while the CH3CHO + H channel is formed in negligible amount (<4%). The implications for combustion and astrochemical environments are discussed.
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Affiliation(s)
- Pengxiao Liang
- Dipartimento di Chimica, Biologia e Biotecnologie, Università Degli Studi di Perugia, Perugia 06123, Italy
| | - Emília Valença Ferreira de Aragão
- Dipartimento di Chimica, Biologia e Biotecnologie, Università Degli Studi di Perugia, Perugia 06123, Italy
- Master-Tec Srl, Via Sicilia, 41, Perugia 06128, Italy
| | - Lisa Giani
- Dipartimento di Chimica, Biologia e Biotecnologie, Università Degli Studi di Perugia, Perugia 06123, Italy
- Université Grenoble Alpes, 621 Av. Centrale, Saint-Martin-d'Hères 38400, France
| | - Luca Mancini
- Dipartimento di Chimica, Biologia e Biotecnologie, Università Degli Studi di Perugia, Perugia 06123, Italy
| | - Giacomo Pannacci
- Dipartimento di Chimica, Biologia e Biotecnologie, Università Degli Studi di Perugia, Perugia 06123, Italy
| | - Demian Marchione
- Dipartimento di Chimica, Biologia e Biotecnologie, Università Degli Studi di Perugia, Perugia 06123, Italy
| | - Gianmarco Vanuzzo
- Dipartimento di Chimica, Biologia e Biotecnologie, Università Degli Studi di Perugia, Perugia 06123, Italy
| | - Noelia Faginas-Lago
- Dipartimento di Chimica, Biologia e Biotecnologie, Università Degli Studi di Perugia, Perugia 06123, Italy
- Master-Tec Srl, Via Sicilia, 41, Perugia 06128, Italy
| | - Marzio Rosi
- Dipartimento di Ingegneria Civile Ed Ambientale, Università Degli Studi di Perugia, Perugia 06125, Italy
| | | | - Piergiorgio Casavecchia
- Dipartimento di Chimica, Biologia e Biotecnologie, Università Degli Studi di Perugia, Perugia 06123, Italy
| | - Nadia Balucani
- Dipartimento di Chimica, Biologia e Biotecnologie, Università Degli Studi di Perugia, Perugia 06123, Italy
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3
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Masoumpour MS, Daryanavard M. The kinetics and dynamics of the multichannel multiwell reaction of CO(1Σ+) with OH(2Π): theoretical investigation. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2299-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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4
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Li H, Suits AG. Universal crossed beam imaging studies of polyatomic reaction dynamics. Phys Chem Chem Phys 2020; 22:11126-11138. [DOI: 10.1039/d0cp00522c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Crossed-beam imaging studies of polyatomic reactions show surprising dynamics not anticipated by extrapolation from smaller model systems.
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Affiliation(s)
- Hongwei Li
- Department of Chemistry
- University of Missouri
- Columbia
- USA
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5
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Caracciolo A, Lu D, Balucani N, Vanuzzo G, Stranges D, Wang X, Li J, Guo H, Casavecchia P. Combined Experimental-Theoretical Study of the OH + CO → H + CO 2 Reaction Dynamics. J Phys Chem Lett 2018; 9:1229-1236. [PMID: 29470075 DOI: 10.1021/acs.jpclett.7b03439] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A combined experimental-theoretical study is performed to advance our understanding of the dynamics of the prototypical tetra-atom, complex-forming reaction OH + CO → H + CO2, which is also of great practical relevance in combustion, Earth's atmosphere, and, potentially, Mars's atmosphere and interstellar chemistry. New crossed molecular beam experiments with mass spectrometric detection are analyzed together with the results from previous experiments and compared with quasi-classical trajectory (QCT) calculations on a new, full-dimensional potential energy surface (PES). Comparisons between experiment and theory are carried out both in the center-of-mass and laboratory frames. Good agreement is found between experiment and theory, both for product angular and translational energy distributions, leading to the conclusion that the new PES is the most accurate at present in elucidating the dynamics of this fundamental reaction. Yet, small deviations between experiment and theory remain and are presumably attributable to the QCT treatment of the scattering dynamics.
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Affiliation(s)
- Adriana Caracciolo
- Dipartimento di Chimica, Biologia e Biotecnologie , Università degli Studi di Perugia , 06123 Perugia , Italy
| | - Dandan Lu
- School of Chemistry and Chemical Engineering , Chongqing University , Chongqing 401331 , China
| | - Nadia Balucani
- Dipartimento di Chimica, Biologia e Biotecnologie , Università degli Studi di Perugia , 06123 Perugia , Italy
| | - Gianmarco Vanuzzo
- Dipartimento di Chimica, Biologia e Biotecnologie , Università degli Studi di Perugia , 06123 Perugia , Italy
| | - Domenico Stranges
- Dipartimento di Chimica , Sapienza - Università di Roma , 00185 Roma , Italy
| | - Xingan Wang
- Department of Chemical Physics, School of Chemistry and Materials Science , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Jun Li
- School of Chemistry and Chemical Engineering , Chongqing University , Chongqing 401331 , China
| | - Hua Guo
- Department of Chemistry and Chemical Biology , University of New Mexico , Albuquerque , New Mexico 87131 , United States
| | - Piergiorgio Casavecchia
- Dipartimento di Chimica, Biologia e Biotecnologie , Università degli Studi di Perugia , 06123 Perugia , Italy
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6
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Carter S, Wang Y, Bowman JM. The Rovibrational Spectra of trans- and cis-HOCO, Calculated by MULTIMODE with ab Initio Potential Energy and Dipole Moment Surfaces. J Phys Chem A 2017; 121:1616-1626. [PMID: 28157298 DOI: 10.1021/acs.jpca.6b13013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The code MULTIMODE is used in its reaction path version, along with ab initio potential energy and dipole moment surfaces introduced earlier, to predict the infrared spectra of both trans and cis forms of HOCO at temperatures 296 and 15 K. All six fundamentals are isolated for each isomer and temperature, and their main features examined, paying particular attention to the OH stretch fundamental, whose spectrum has been reported experimentally for trans-HOCO. The current spectra for cis-HOCO, while not of "spectroscopic" accuracy, should be sufficient to aid in new experimental efforts to record the spectrum of this isomer.
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Affiliation(s)
- Stuart Carter
- Cherry L. Emerson Center for Scientific Computation, Department of Chemistry, Emory University , Atlanta, Georgia 30322, United States
| | - Yimin Wang
- Cherry L. Emerson Center for Scientific Computation, Department of Chemistry, Emory University , Atlanta, Georgia 30322, United States
| | - Joel M Bowman
- Cherry L. Emerson Center for Scientific Computation, Department of Chemistry, Emory University , Atlanta, Georgia 30322, United States
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7
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Pan H, Liu K, Caracciolo A, Casavecchia P. Crossed beam polyatomic reaction dynamics: recent advances and new insights. Chem Soc Rev 2017; 46:7517-7547. [DOI: 10.1039/c7cs00601b] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review summarizes the developments in polyatomic reaction dynamics, focusing on reactions of unsaturated hydrocarbons with O-atoms and methane with atoms/radicals.
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Affiliation(s)
- Huilin Pan
- Institute of Atomic and Molecular Sciences (IAMS)
- Academia Sinica
- Taipei
- Taiwan
| | - Kopin Liu
- Institute of Atomic and Molecular Sciences (IAMS)
- Academia Sinica
- Taipei
- Taiwan
- Department of Physics
| | - Adriana Caracciolo
- Dipartimento di Chimica
- Biologia e Biotecnologie
- Università degli Studi di Perugia
- 06123 Perugia
- Italy
| | - Piergiorgio Casavecchia
- Dipartimento di Chimica
- Biologia e Biotecnologie
- Università degli Studi di Perugia
- 06123 Perugia
- Italy
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8
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Yang T, Dangi BB, Kaiser RI, Bertels LW, Head-Gordon M. A Combined Experimental and Theoretical Study on the Formation of the 2-Methyl-1-silacycloprop-2-enylidene Molecule via the Crossed Beam Reactions of the Silylidyne Radical (SiH; X(2)Π) with Methylacetylene (CH3CCH; X(1)A1) and D4-Methylacetylene (CD3CCD; X(1)A1). J Phys Chem A 2016; 120:4872-83. [PMID: 26837568 DOI: 10.1021/acs.jpca.5b12457] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The bimolecular gas-phase reactions of the ground-state silylidyne radical (SiH; X(2)Π) with methylacetylene (CH3CCH; X(1)A1) and D4-methylacetylene (CD3CCD; X(1)A1) were explored at collision energies of 30 kJ mol(-1) under single-collision conditions exploiting the crossed molecular beam technique and complemented by electronic structure calculations. These studies reveal that the reactions follow indirect scattering dynamics, have no entrance barriers, and are initiated by the addition of the silylidyne radical to the carbon-carbon triple bond of the methylacetylene molecule either to one carbon atom (C1; [i1]/[i2]) or to both carbon atoms concurrently (C1-C2; [i3]). The collision complexes [i1]/[i2] eventually isomerize via ring-closure to the c-SiC3H5 doublet radical intermediate [i3], which is identified as the decomposing reaction intermediate. The hydrogen atom is emitted almost perpendicularly to the rotational plane of the fragmenting complex resulting in a sideways scattering dynamics with the reaction being overall exoergic by -12 ± 11 kJ mol(-1) (experimental) and -1 ± 3 kJ mol(-1) (computational) to form the cyclic 2-methyl-1-silacycloprop-2-enylidene molecule (c-SiC3H4; p1). In line with computational data, experiments of silylidyne with D4-methylacetylene (CD3CCD; X(1)A1) depict that the hydrogen is emitted solely from the silylidyne moiety but not from methylacetylene. The dynamics are compared to those of the related D1-silylidyne (SiD; X(2)Π)-acetylene (HCCH; X(1)Σg(+)) reaction studied previously in our group, and from there, we discovered that the methyl group acts primarily as a spectator in the title reaction. The formation of 2-methyl-1-silacycloprop-2-enylidene under single-collision conditions via a bimolecular gas-phase reaction augments our knowledge of the hitherto poorly understood silylidyne (SiH; X(2)Π) radical reactions with small hydrocarbon molecules leading to the synthesis of organosilicon molecules in cold molecular clouds and in carbon-rich circumstellar envelopes.
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Affiliation(s)
- Tao Yang
- Department of Chemistry, University of Hawai'i at Manoa , Honolulu, Hawaii 96822, United States
| | - Beni B Dangi
- Department of Chemistry, University of Hawai'i at Manoa , Honolulu, Hawaii 96822, United States
| | - Ralf I Kaiser
- Department of Chemistry, University of Hawai'i at Manoa , Honolulu, Hawaii 96822, United States
| | - Luke W Bertels
- Department of Chemistry, University of California, Berkeley , Berkeley, California 94720, United States
| | - Martin Head-Gordon
- Department of Chemistry, University of California, Berkeley , Berkeley, California 94720, United States
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9
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Garcia E, Laganà A, Pirani F, Bartolomei M, Cacciatore M, Kurnosov A. Enhanced Flexibility of the O2 + N2 Interaction and Its Effect on Collisional Vibrational Energy Exchange. J Phys Chem A 2016; 120:5208-19. [PMID: 26982814 DOI: 10.1021/acs.jpca.6b00962] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Prompted by a comparison of measured and computed rate coefficients of Vibration-to-Vibration and Vibration-to-Translation energy transfer in O2 + N2 non-reactive collisions, extended semiclassical calculations of the related cross sections were performed to rationalize the role played by attractive and repulsive components of the interaction on two different potential energy surfaces. By exploiting the distributed concurrent scheme of the Grid Empowered Molecular Simulator we extended the computational work to quasiclassical techniques, investigated in this way more in detail the underlying microscopic mechanisms, singled out the interaction components facilitating the energy transfer, improved the formulation of the potential, and performed additional calculations that confirmed the effectiveness of the improvement introduced.
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Affiliation(s)
- E Garcia
- Departamento de Quimica Fisica, Universidad del Pais Vasco (UPV/EHU) , 01006 Vitoria, Spain
| | - A Laganà
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia , 06100 Perugia, Italy
| | - F Pirani
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia , 06100 Perugia, Italy
| | - M Bartolomei
- Instituto de Física Fundamental, CSIC , Serrano 123, 28006 Madrid, Spain
| | - M Cacciatore
- Nanotec-Institute for Nanotechnology, CNR , c/o University campus, Chemistry Department, Via Orabona 4, 70123 Bari, Italy
| | - A Kurnosov
- Troitsk Institute of Innovation and Fusion Research , 142092 Troitsk, Moscow, Russia
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10
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Pacifici L, Pastore M, Garcia E, Laganà A, Rampino S. A Dynamics Investigation of the C + CH+ → C2+ + H Reaction on an ab Initio Bond-Order-Like Potential. J Phys Chem A 2016; 120:5125-35. [DOI: 10.1021/acs.jpca.6b00564] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Mariachiara Pastore
- CNRS, Théorie-Modélisation-Simulation, SRSMC, Boulevard des Aiguillettes, 54506 Vandoeuvre-lés-Nancy, France
| | - Ernesto Garcia
- Departamento
de Química Física, Universidad del País Vasco (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria, Spain
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11
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Garcia E, Kurnosov A, Laganà A, Pirani F, Bartolomei M, Cacciatore M. Efficiency of Collisional O2 + N2 Vibrational Energy Exchange. J Phys Chem B 2016; 120:1476-85. [PMID: 26292835 DOI: 10.1021/acs.jpcb.5b06423] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
By following the scheme of the Grid Empowered Molecular Simulator (GEMS), a new O2 + N2 intermolecular potential, built on ab initio calculations and experimental (scattering and second virial coefficient) data, has been coupled with an appropriate intramolecular one. On the resulting potential energy surface detailed rate coefficients for collision induced vibrational energy exchanges have been computed using a semiclassical method. A cross comparison of the computed rate coefficients with the outcomes of previous semiclassical calculations and kinetic experiments has provided a foundation for characterizing the main features of the vibrational energy transfer processes of the title system as well as a critical reading of the trajectory outcomes and kinetic data. On the implemented procedures massive trajectory runs for the proper interval of initial conditions have singled out structures of the vibrational distributions useful to formulate scaling relationships for complex molecular simulations.
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Affiliation(s)
- E Garcia
- Departamento de Quimica Fisica, Universidad del Pais Vasco (UPV/EHU) , 01006 Vitoria, Spain
| | - A Kurnosov
- Troitsk Institute of Innovation and Fusion Research , 142092 Troitsk, Moscow, Russia
| | - A Laganà
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia , 06100 Perugia, Italy
| | - F Pirani
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia , 06100 Perugia, Italy
| | - M Bartolomei
- Instituto de Física Fundamental, IFF-CSIC , Serrano 123, 28006 Madrid, Spain
| | - M Cacciatore
- Nanotec - Institute for Nanotechnology CNR c/o University campus , Chemistry Department, Via Orabona 4, 70123 Bari, Italy
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13
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Faginas-Lago N, Albertí M, Costantini A, Laganà A, Lombardi A, Pacifici L. An innovative synergistic grid approach to the computational study of protein aggregation mechanisms. J Mol Model 2014; 20:2226. [PMID: 24935103 DOI: 10.1007/s00894-014-2226-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 03/26/2014] [Indexed: 10/25/2022]
Abstract
Thanks to the advances in grid technologies, we are able to propose here an evolution of our molecular simulator that, when moving to larger systems, instead of reducing the granularity of the dynamical treatment (as is often done in molecular dynamics studies of such systems) exploits the extra power of the grid approach to the end of preserving the detailed nature of theatomistic formulation of the interaction. Key steps of such evolution are: (1) the assemblage of the interaction based on a composition of the ab initio intramolecular data and a portable parameterization of the intermolecular potential linking ab initio evaluation of intramolecular potentials and the partitioning of molecular polarizability; (2) the exploitation of an efficient coordinated porting and running of molecular dynamics codes on the European grid distributed computing infrastructure. As a prototype case study, the N-methylacetamide dimer in vacuo has been considered and the formation of possible conformers is analyzed.
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Affiliation(s)
- Noelia Faginas-Lago
- Dipartimento di Chimica, Biologia e Biotecnologie, University of Perugia, Via Elce di Sotto, 8, 06123, Perugia, Italy,
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14
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Wang J, Li J, Ma J, Guo H. Full-dimensional characterization of photoelectron spectra of HOCO−and DOCO−and tunneling facilitated decay of HOCO prepared by anion photodetachment. J Chem Phys 2014; 140:184314. [DOI: 10.1063/1.4874975] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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15
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Kurnosov A, Cacciatore M, Laganà A, Pirani F, Bartolomei M, Garcia E. The effect of the intermolecular potential formulation on the state‐selected energy exchange rate coefficients in N
2
–N
2
collisions. J Comput Chem 2014; 35:722-36. [DOI: 10.1002/jcc.23545] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Revised: 12/23/2013] [Accepted: 12/27/2013] [Indexed: 11/06/2022]
Affiliation(s)
- Alexander Kurnosov
- Troitsk Institute of Innovation and Fusion ResearchTroitsk142092 Moscow Russia
| | - Mario Cacciatore
- CNR‐IMIP (Institute of Inorganic Methodologies and Plasmas)Via Amendola 122/DBari70126 Italy
| | - Antonio Laganà
- Dipartimento di ChimicaUniversità di PerugiaPerugia06100 Italy
| | - Fernando Pirani
- Dipartimento di ChimicaUniversità di PerugiaPerugia06100 Italy
| | - Massimiliano Bartolomei
- Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas (IFF‐CSIC)Serrano 123Madrid28006 Spain
| | - Ernesto Garcia
- Departamento de Química FísicaUniversidad del País Vasco (UPV/EHU)Vitoria01006 Spain
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16
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Li J, Chen J, Zhang DH, Guo H. Quantum and quasi-classical dynamics of the OH + CO → H + CO2reaction on a new permutationally invariant neural network potential energy surface. J Chem Phys 2014; 140:044327. [DOI: 10.1063/1.4863138] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [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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18
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Rossi E, Evangelisti S, Laganà A, Monari A, Rampino S, Verdicchio M, Baldridge KK, Bendazzoli GL, Borini S, Cimiraglia R, Angeli C, Kallay P, Lüthi HP, Ruud K, Sanchez-Marin J, Scemama A, Szalay PG, Tajti A. Code interoperability and standard data formats in quantum chemistry and quantum dynamics: The Q5/D5Cost data model. J Comput Chem 2013; 35:611-21. [DOI: 10.1002/jcc.23492] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2013] [Revised: 10/18/2013] [Accepted: 10/19/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Elda Rossi
- SuperComputing Applications and Innovation Department; CINECA; via Magnanelli, 6/3, Casalecchio di Reno/Bologna I-40033 Italy
| | - Stefano Evangelisti
- Laboratoire de Physique Quantique; UMR 5626, Université de Toulouse et CNRS 118, Route de Narbonne; Toulouse Cedex F-31062 France
| | - Antonio Laganà
- Department of Chemistry; University of Perugia; Via Elce di sotto, 8 Perugia I-06123 Italy
| | - Antonio Monari
- Université de Lorraine et CNRS, Boulevard des Aguilettes, Vandoeuvre-lès-Nancy; Cedex F-54506 France and CNRS, Théorie-Modélisation-Simulation SRSMC, Boulevard des Aiguillettes, Vandoeuvre-lés-Nancy CEDEX, F-54506, France
| | - Sergio Rampino
- Department of Chemistry; University of Perugia; Via Elce di sotto, 8 Perugia I-06123 Italy
| | - Marco Verdicchio
- Department of Chemistry; University of Perugia; Via Elce di sotto, 8 Perugia I-06123 Italy
- CNRS-Laboratoire Reactions et Génie des Procédés (LRGP), ENSIC, 1, rue Grandville; Nancy Cedex F-54001 France
| | - Kim K. Baldridge
- Organic Chemistry Institute; University of Zürich; Winterthurerstrasse 190 Zürich CH-8057 Switzerland
| | - Gian Luigi Bendazzoli
- Dipartimento di Chimica Industriale “Toso Montanari,”; Università di Bologna; Viale Risorgimento 4 Bologna I-40136 Italy
| | - Stefano Borini
- QuantumWise A/S; Lersø Parkallé 107 Copenhagen DK-2100 Denmark
| | - Renzo Cimiraglia
- Dipartimento di Chimica; Università di Ferrara; Via Borsari 46 Ferrara I-44121 Italy
| | - Celestino Angeli
- Dipartimento di Chimica; Università di Ferrara; Via Borsari 46 Ferrara I-44121 Italy
| | - Peter Kallay
- Department of Physical Chemistry and Materials Science; Budapest University of Technology and Economics; P.O. Box 91 Budapest H-1521 Hungary
| | - Hans P. Lüthi
- Department of Chemistry and Applied Biosciences; ETH Zürich; Wolfgang-Pauli-Strasse 10 Zürich CH-8093 Switzerland
| | - Kenneth Ruud
- Department of Chemistry; CTCC, University of Tromsø; Tromsø N-9037 Norway
| | - José Sanchez-Marin
- Instituto de Ciencia Molecular; Universitat de Valencia, Edificio de Institutos; Campus de Paterna Valencia E-46980 Spain
| | - Anthony Scemama
- Laboratoire de Physique Quantique; UMR 5626, Université de Toulouse et CNRS 118, Route de Narbonne; Toulouse Cedex F-31062 France
| | - Peter G. Szalay
- Institute of Chemistry; Eötvös Loránd University; Pázmány sétány 1/A Budapest H-1117 Hungary
| | - Attila Tajti
- Institute of Chemistry; Eötvös Loránd University; Pázmány sétány 1/A Budapest H-1117 Hungary
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Pacifici L, Verdicchio M, Lago NF, Lombardi A, Costantini A. A high-level ab initio study of the N2 + N2 reaction channel. J Comput Chem 2013; 34:2668-76. [PMID: 24037708 DOI: 10.1002/jcc.23415] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Revised: 07/26/2013] [Accepted: 07/27/2013] [Indexed: 11/08/2022]
Abstract
A new six-dimensional (6D) global potential energy surface (PES) is proposed for the full range description of the interaction of the N2(1Σg+)+N2(1Σg+) system governing collisional processes, including N atom exchange. The related potential energy values were determined using high-level ab initio methods. The calculations were performed at a coupled-cluster with single and double and perturbative triple excitations level of theory in order to have a first full range picture of the PES. Subsequently, in order to accurately describe the stretching of the bonds of the two interacting N2 molecules by releasing the constraints of being considered as rigid rotors, for the same molecular geometries higher level of theory multi reference calculations were performed. Out of the calculated values a 6D 4-atoms global PES was produced for use in dynamical calculations. The ab initio calculations were made possible by the combined use of High Throughput Computing and High Performance Computing techniques within the frame of a computing grid empowered molecular simulator.
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Affiliation(s)
- Leonardo Pacifici
- Department of Chemistry, University of Perugia, via Elce di Sotto, 8, Perugia, 06123, Italy
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Leonori F, Petrucci R, Wang X, Casavecchia P, Balucani N. A crossed beam study of the reaction CN+C2H4 at a high collision energy: The opening of a new reaction channel. Chem Phys Lett 2012. [DOI: 10.1016/j.cplett.2012.09.070] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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García E, Aoiz FJ, Laganà A. A classical versus quantum mechanics study of the $$\hbox{OH}\,+\,\hbox{CO} \rightarrow\,\hbox{H}\,+\,\hbox{CO}_2$$ (J = 0) reaction. Theor Chem Acc 2012. [DOI: 10.1007/s00214-012-1262-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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22
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Balucani N. Elementary reactions of N atoms with hydrocarbons: first steps towards the formation of prebiotic N-containing molecules in planetary atmospheres. Chem Soc Rev 2012; 41:5473-83. [PMID: 22705670 DOI: 10.1039/c2cs35113g] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Nadia Balucani
- Dipartimento di Chimica, Università degli Studi di Perugia, Perugia, Italy.
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