1
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Stoecklin T, Cabrera-González LD, Denis-Alpizar O, Páez-Hernández D. A close coupling study of the bending relaxation of H 2O by collision with He. J Chem Phys 2021; 154:144307. [PMID: 33858145 DOI: 10.1063/5.0047718] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We present a close coupling study of the bending relaxation of H2O by collision with He, taking explicitly into account the bending-rotation coupling within the rigid-bender close-coupling method. A 4D potential energy surface is developed based on a large grid of ab initio points calculated at the coupled-cluster single double triple level of theory. The bound states energies of the He-H2O complex are computed and found to be in excellent agreement with previous theoretical calculations. The dynamics results also compare very well with the rigid-rotor results available in the Basecol database and with experimental data for both rotational transitions and bending relaxation. The bending-rotation coupling is also demonstrated to be very efficient in increasing bending relaxation when the rotational excitation of H2O increases.
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Affiliation(s)
- Thierry Stoecklin
- Institut des Sciences Moléculaires, Université de Bordeaux, CNRS UMR 5255, 33405 Talence Cedex, France
| | - Lisán David Cabrera-González
- Doctorado en Fisicoquímica Molecular, Facultad de Ciencias Exactas, Universidad Andres Bello, República 275, Santiago, Chile
| | - Otoniel Denis-Alpizar
- Núcleo de Astroquímica y Astrofísica, Instituto de Ciencias Químicas Aplicadas, Facultad de Ingeniería, Universidad Autónoma de Chile, Av. Pedro de Valdivia 425, Providencia, Santiago, Chile
| | - Dayán Páez-Hernández
- Doctorado en Fisicoquímica Molecular, Facultad de Ciencias Exactas, Universidad Andres Bello, República 275, Santiago, Chile
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2
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Campagna MM, Hrubý J, van Dongen MEH, Smeulders DMJ. Homogeneous water nucleation: Experimental study on pressure and carrier gas effects. J Chem Phys 2020; 153:164303. [PMID: 33138427 DOI: 10.1063/5.0021477] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Homogeneous nucleation of water is investigated in argon and in nitrogen at about 240 K and 0.1 MPa, 1 MPa, and 2 MPa by means of a pulse expansion wave tube. The surface tension reduction at high pressure qualitatively explains the observed enhancement of the nucleation rate of water in argon as well as in nitrogen. The differences in nucleation rates for the two mixtures at high pressure are consistent with the differences in adsorption behavior of the different carrier gas molecules. At low pressure, there is not enough carrier gas available to ensure the growing clusters are adequately thermalized by collisions with carrier gas molecules so that the nucleation rate is lower than under isothermal conditions. This reduction depends on the carrier gas, pressure, and temperature. A qualitative agreement between experiments and theory is found for argon and nitrogen as carrier gases. As expected, the reduction in the nucleation rates is more pronounced at higher temperatures. For helium as the carrier gas, non-isothermal effects appear to be substantially stronger than predicted by theory. The critical cluster sizes are determined experimentally and theoretically according to the Gibbs-Thomson equation, showing a reasonable agreement as documented in the literature. Finally, we propose an empirical correction of the classical nucleation theory for the nucleation rate calculation. The empirical expression is in agreement with the experimental data for the analyzed mixtures (water-helium, water-argon, and water-nitrogen) and thermodynamic conditions (0.06 MPa-2 MPa and 220 K-260 K).
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Affiliation(s)
- M M Campagna
- Department of Mechanical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - J Hrubý
- Institute of Thermomechanics of the CAS, v. v. i. Dolejskova 5, CZ-182 00 Prague 8, Czech Republic
| | - M E H van Dongen
- Department of Applied Physics, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - D M J Smeulders
- Department of Mechanical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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3
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Wang L, Zhang XL, Zhai Y, Nooijen M, Li H. Explicitly correlated ab initio potential energy surface and predicted rovibrational spectra for H 2O-N 2 and D 2O-N 2 complexes. J Chem Phys 2020; 153:054303. [PMID: 32770926 DOI: 10.1063/5.0009098] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
An ab initio intermolecular potential energy surface (PES) for the van der Waals complex of H2O-N2 that explicitly incorporates the intramolecular Q2 bending normal mode of the H2O monomer is presented. The electronic structure computations have been carried out at the explicitly correlated coupled cluster theory [CCSD(T)-F12] with an augmented correlation-consistent triple zeta basis set and an additional bond function. Analytic five-dimensional intermolecular PESs for ν2(H2O) = 0 and 1 are obtained by fitting to the multi-dimensional Morse/long-range potential function form. These fits to 40 890 points have the root-mean-square (rms) discrepancy of 0.88 cm-1 for interaction energies less than 2000.0 cm-1. The resulting vibrationally averaged PESs provide good representations of the experimental microwave and infrared data: for microwave transitions of H2O-N2, the rms discrepancy is only 0.0003 cm-1, and for infrared transitions of the A1 symmetry of the H2O(ν2 = 1 ← 0)-N2, the rms discrepancy is 0.001 cm-1. The calculated infrared band origin shifts associated with the ν2 bending vibration of water are 2.210 cm-1 and 1.323 cm-1 for H2O-N2 and D2O-N2, respectively, in good agreement with the experimental values of 2.254 cm-1 and 1.266 cm-1. The benchmark tests and comparisons of the predicted spectral properties are carried out between CCSD(T)-F12a and CCSD(T)-F12b approaches.
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Affiliation(s)
- Lu Wang
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2519 Jiefang Road, Changchun 130023, China
| | - Xiao-Long Zhang
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2519 Jiefang Road, Changchun 130023, China
| | - Yu Zhai
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2519 Jiefang Road, Changchun 130023, China
| | - Marcel Nooijen
- Department of Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Hui Li
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2519 Jiefang Road, Changchun 130023, China
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4
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Jiang T, Han C, Zhu H. A new six-dimensional ab intito potential energy surface and rovibrational spectra for the Ar–H 2S complex. Mol Phys 2020. [DOI: 10.1080/00268976.2019.1612958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Ting Jiang
- School of Chemistry, Sichuan University, Chengdu, People’s Republic of China
| | - Chaoying Han
- School of Chemistry, Sichuan University, Chengdu, People’s Republic of China
| | - Hua Zhu
- School of Chemistry, Sichuan University, Chengdu, People’s Republic of China
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5
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Naumkin F, del Mazo-Sevillano P, Aguado A, Suleimanov YV, Roncero O. Zero- and high-pressure mechanisms in the complex forming reactions of OH with methanol and formaldehyde at low temperatures. ACS EARTH & SPACE CHEMISTRY 2019; 3:1158-1169. [PMID: 31511842 PMCID: PMC6739233 DOI: 10.1021/acsearthspacechem.9b00051] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A recent Ring Polymer Molecular Dynamics study of the reactions of OH with methanol and formaldehyde, at zero pressure and below 100 K, has shown the formation of long lived complexes, with long lifetimes, longer than 100 ns for the lower temperatures studied, 20-100 K (del Mazo-Sevillano et al., 2019). These long lifetimes support the existence of multi collision events with the He buffer-gas atoms under experimental conditions, as suggested by several transition state theory studies of these reactions. In this work we study these secondary collisions, as a dynamical approach to study pressure effects on these reactions. For this purpose, the potential energy surfaces of He with H2CO, OH, H2O and HCO are calculated at highly accurate ab initio level. The stability of some of the complexes is studied using Path Integral Molecular dynamics techniques, determining that OH-H2CO complexes can be formed up to 100 K or higher temperatures, while the weaker He-H2CO complexes dissociate at approximately 50 K. The predicted IR intensity spectra shows new features which could help the identification of the OH-H2CO complex. Finally, the He-H2CO + OH and OH-H2CO + He collisions are studied using quassi-classical trajectories, finding that the cross section to produce HCO + H2O products increases with decreasing collision energy, and that it is ten times higher in the He-H2CO + OH case.
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Affiliation(s)
| | - Pablo del Mazo-Sevillano
- Unidad Asociada UAM-IFF-CSIC, Departamento de Química Física Aplicada, Facultad de Ciencias Módulo 14, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Alfredo Aguado
- Unidad Asociada UAM-IFF-CSIC, Departamento de Química Física Aplicada, Facultad de Ciencias Módulo 14, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Yury V. Suleimanov
- Computation-based Science and Technology Research Center, Cyprus Institute, 20 Kavafi Str., Nicosia 2121, Cyprus
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, United States
| | - Octavio Roncero
- Instituto de Física Fundamental (IFF-CSIC), C.S.I.C., Serrano 123, 28006 Madrid, Spain
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6
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Tupikina EY, Efimova AA, Denisov GS, Tolstoy PM. NMR Chemical Shift of a Helium Atom as a Probe for Electronic Structure of FH, F–, (FHF)−, and FH2+. J Phys Chem A 2017; 121:9654-9662. [DOI: 10.1021/acs.jpca.7b10189] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- E. Yu. Tupikina
- Department
of Physics and ‡Center for Magnetic Resonance, St. Petersburg State University, St. Petersburg 198504, Russia
| | - A. A. Efimova
- Department
of Physics and ‡Center for Magnetic Resonance, St. Petersburg State University, St. Petersburg 198504, Russia
| | - G. S. Denisov
- Department
of Physics and ‡Center for Magnetic Resonance, St. Petersburg State University, St. Petersburg 198504, Russia
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7
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Aina AA, Misquitta AJ, Price SL. From dimers to the solid-state: Distributed intermolecular force-fields for pyridine. J Chem Phys 2017; 147:161722. [DOI: 10.1063/1.4999789] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Alexander A. Aina
- Department of Chemistry, University College London, London WC1H 0AJ, United Kingdom
| | - Alston J. Misquitta
- School of Physics and Astronomy, Queen Mary, University of London, London E1 4NS, United Kingdom
| | - Sarah L. Price
- Department of Chemistry, University College London, London WC1H 0AJ, United Kingdom
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8
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A new potential energy surface and microwave and infrared spectra of the Kr–D2O complex. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.05.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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9
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Sarma G, Saha AK, Bishwakarma CK, Scheidsbach R, Yang CH, Parker D, Wiesenfeld L, Buck U, Mavridis L, Marinakis S. Collision energy dependence of state-to-state differential cross sections for rotationally inelastic scattering of H 2O by He. Phys Chem Chem Phys 2017; 19:4678-4687. [PMID: 28127600 DOI: 10.1039/c6cp06495g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The inelastic scattering of H2O by He as a function of collision energy in the range 381 cm-1 to 763 cm-1 at an energy interval of approximately 100 cm-1 has been investigated in a crossed beam experiment using velocity map imaging. Change in collision energy was achieved by varying the collision angle between the H2O and He beam. We measured the state-to-state differential cross section (DCS) of scattered H2O products for the final rotational states JKaKc = 110, 111, 221 and 414. Rotational excitation of H2O is probed by (2 + 1) resonance enhanced multiphoton ionization (REMPI) spectroscopy. DCS measurements over a wide range of collision energies allowed us to probe the H2O-He potential energy surface (PES) with greater detail than in previous work. We found that a classical approximation of rotational rainbows can predict the collision energy dependence of the DCS. Close-coupling quantum mechanical calculations were used to produce DCS and partial cross sections. The forward-backward ratio (FBR), is introduced here to compare the experimental and theoretical DCS. Both theory and experiments suggest that an increase in the collision energy is accompanied with more forward scattering.
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Affiliation(s)
- Gautam Sarma
- Radboud University Nijmegen, Institute for Molecules and Materials, Nijmegen, The Netherlands
| | - Ashim Kumar Saha
- Radboud University Nijmegen, Institute for Molecules and Materials, Nijmegen, The Netherlands
| | | | - Roy Scheidsbach
- Radboud University Nijmegen, Institute for Molecules and Materials, Nijmegen, The Netherlands
| | - Chung-Hsin Yang
- Radboud University Nijmegen, Institute for Molecules and Materials, Nijmegen, The Netherlands and Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, Taiwan
| | - David Parker
- Radboud University Nijmegen, Institute for Molecules and Materials, Nijmegen, The Netherlands
| | | | - Udo Buck
- Max-Planck-Institut für Dynamik und Selbst-Organisation, Am Faßberg 17, D-37077 Göttingen, Germany
| | - Lazaros Mavridis
- Department of Chemistry and Biochemistry, School of Biological and Chemical Sciences, Queen Mary University of London, Joseph Priestley Building, Mile End Road, London, E1 4NS, UK.
| | - Sarantos Marinakis
- Department of Chemistry and Biochemistry, School of Biological and Chemical Sciences, Queen Mary University of London, Joseph Priestley Building, Mile End Road, London, E1 4NS, UK.
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10
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Avidor N, Allison W. Helium Diffraction as a Probe of Structure and Proton Order on Model Ice Surfaces. J Phys Chem Lett 2016; 7:4520-4523. [PMID: 27788008 DOI: 10.1021/acs.jpclett.6b02221] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Helium diffraction has the potential to reveal the degree of proton order at an ice surface, and has been used in the past to benchmark theoretical work. We demonstrate that previous calculations do not represent the diffraction experiment to a sufficient degree of accuracy. By combining a realistic helium-water potential with quantum calculations using exact close-coupling methods we demonstrate that the scattering is strongly energy dependent. Proton order may be inferred best from selective adsorption resonances of the helium atom, which involve multiple scattering. We use the results to discuss the validity of the latest assumptions for the ice Ih surface with respect to proton ordering.
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Affiliation(s)
- N Avidor
- Cavendish Laboratory, University of Cambridge , JJ Thomson Avenue, Cambridge CB30HE, United Kingdom
| | - W Allison
- Cavendish Laboratory, University of Cambridge , JJ Thomson Avenue, Cambridge CB30HE, United Kingdom
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11
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He S, Chen D, Li Y, Feng E, Huang W. A four-dimensional potential energy surface and predicted infrared spectra for the Ne-D2O van der Waals complex in the ν2 bending region of D2O molecule. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2016.10.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Wang S, He S, Dai L, Feng E, Huang W. A four-dimensional potential energy surface for the Ar–D2O van der Waals complex: Bending normal coordinate dependence. J Chem Phys 2015; 142:224307. [DOI: 10.1063/1.4921260] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Shenhao Wang
- Department of Physics, Anhui Normal University, Wuhu 241000, People’s Republic of China
| | - Shanshan He
- Department of Physics, Anhui Normal University, Wuhu 241000, People’s Republic of China
| | - Liangchen Dai
- Department of Physics, Anhui Normal University, Wuhu 241000, People’s Republic of China
| | - Eryin Feng
- Department of Physics, Anhui Normal University, Wuhu 241000, People’s Republic of China
| | - Wuying Huang
- Department of Physics, Anhui Normal University, Wuhu 241000, People’s Republic of China
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13
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da Cunha WF, de Oliveira RM, Roncaratti LF, Martins JBL, e Silva GM, Gargano R. Rovibrational energies and spectroscopic constants for H2O-Ng complexes. J Mol Model 2014; 20:2498. [PMID: 25425286 DOI: 10.1007/s00894-014-2498-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 10/13/2014] [Indexed: 11/28/2022]
Abstract
In this work, rovibrational energies and spectroscopic constants for the water -Ng complexes (Ng = He, Ne, Ar, Kr and Xe) were calculated through two different approaches (by solving the Nuclear Schrödinger equation and by applying the Dunham's method) and using two different potential energy curves (PEC). These PEC were determined using potential parameters obtained through molecular beam scattering experiments and accurate theoretical calculation, respectively. It was found that the theoretical rovibrational energies are in a good agreement (only for the lowest numbers of vibrational states) with those obtained through experimental PEC. Another important conclusions was regarding the calculated first two rovibrational energies for the H 2 O-Ar system, that are in a good agreement with the experimental data.
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Affiliation(s)
- Wiliam F da Cunha
- Institute of Physics, University of Brasilia, CP 4455, Brasilia, 70919-970, Brazil
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14
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Roueff E, Lique F. Molecular Excitation in the Interstellar Medium: Recent Advances in Collisional, Radiative, and Chemical Processes. Chem Rev 2013; 113:8906-38. [DOI: 10.1021/cr400145a] [Citation(s) in RCA: 166] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Evelyne Roueff
- Laboratoire
Univers et Théories, Observatoire de Paris, 92190 Meudon, France
| | - François Lique
- LOMC - UMR 6294, CNRS-Université du Havre, 25 rue Philippe Lebon, BP 540, 76058 Le Havre, France
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15
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Sun X, Hu Y, Zhu H. Ab initio potential energy surface and predicted rotational spectra for the Ne–H2O complex. J Chem Phys 2013; 138:204312. [DOI: 10.1063/1.4807497] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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16
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Grechko M, Aseev O, Rizzo TR, Zobov NF, Lodi L, Tennyson J, Polyansky OL, Boyarkin OV. Stark coefficients for highly excited rovibrational states of H2O. J Chem Phys 2012; 136:244308. [DOI: 10.1063/1.4730295] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [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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Yang CH, Sarma G, ter Meulen JJ, Parker DH, McBane GC, Wiesenfeld L, Faure A, Scribano Y, Feautrier N. Communication: Mapping water collisions for interstellar space conditions. J Chem Phys 2010; 133:131103. [DOI: 10.1063/1.3475517] [Citation(s) in RCA: 26] [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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18
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Yang CH, Sarma G, ter Meulen JJ, Parker DH, Buck U, Wiesenfeld L. Imaging the Inelastic Scattering of Water with Helium. Comparison of Experiment and Theory. J Phys Chem A 2010; 114:9886-92. [DOI: 10.1021/jp1035713] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Chung-Hsin Yang
- Radboud University Nijmegen, Institute for Molecules and Materials, Nijmegen, The Netherlands
| | - Gautam Sarma
- Radboud University Nijmegen, Institute for Molecules and Materials, Nijmegen, The Netherlands
| | - J. J. ter Meulen
- Radboud University Nijmegen, Institute for Molecules and Materials, Nijmegen, The Netherlands
| | - David H. Parker
- Radboud University Nijmegen, Institute for Molecules and Materials, Nijmegen, The Netherlands
| | - Udo Buck
- Max-Planck-Institut für Dynamik und Selbst-Organisation, Bunsenstrasse 10, D-37073 Göttingen, Germany
| | - Laurent Wiesenfeld
- Laboratoire d’Astrophysique de Grenoble, CNRS and Université Joseph-Fourier, Grenoble, France
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20
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Roncaratti LF, Belpassi L, Cappelletti D, Pirani F, Tarantelli F. Molecular-Beam Scattering Experiments and Theoretical Calculations Probing Charge Transfer in Weakly Bound Complexes of Water. J Phys Chem A 2009; 113:15223-32. [DOI: 10.1021/jp905584p] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- L. F. Roncaratti
- Dipartimento di Chimica, Università di Perugia, 06123 Perugia, Italy, Dipartimento di Chimica, Università di Perugia, and CNR I.S.T.M, 06123 Perugia, Italy, and Dipartimento di Ingegneria Civile e Ambientale, Università di Perugia, 06125 Perugia, Italy
| | - L. Belpassi
- Dipartimento di Chimica, Università di Perugia, 06123 Perugia, Italy, Dipartimento di Chimica, Università di Perugia, and CNR I.S.T.M, 06123 Perugia, Italy, and Dipartimento di Ingegneria Civile e Ambientale, Università di Perugia, 06125 Perugia, Italy
| | - D. Cappelletti
- Dipartimento di Chimica, Università di Perugia, 06123 Perugia, Italy, Dipartimento di Chimica, Università di Perugia, and CNR I.S.T.M, 06123 Perugia, Italy, and Dipartimento di Ingegneria Civile e Ambientale, Università di Perugia, 06125 Perugia, Italy
| | - F. Pirani
- Dipartimento di Chimica, Università di Perugia, 06123 Perugia, Italy, Dipartimento di Chimica, Università di Perugia, and CNR I.S.T.M, 06123 Perugia, Italy, and Dipartimento di Ingegneria Civile e Ambientale, Università di Perugia, 06125 Perugia, Italy
| | - F. Tarantelli
- Dipartimento di Chimica, Università di Perugia, 06123 Perugia, Italy, Dipartimento di Chimica, Università di Perugia, and CNR I.S.T.M, 06123 Perugia, Italy, and Dipartimento di Ingegneria Civile e Ambientale, Università di Perugia, 06125 Perugia, Italy
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21
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Makarewicz J. Ab initio intermolecular potential energy surfaces of the water-rare gas atom complexes. J Chem Phys 2008; 129:184310. [DOI: 10.1063/1.3009270] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [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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Elementary Processes in Atmospheric Chemistry: Quantum Studies of Intermolecular Dimer Formation and Intramolecular Dynamics. ADVANCES IN QUANTUM CHEMISTRY 2008. [DOI: 10.1016/s0065-3276(07)00215-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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23
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Kumar A, Jhanwar BL, Meath W. Dipole oscillator strength distributions, properties, and dispersion energies for ethylene, propene, and 1-butene. CAN J CHEM 2007. [DOI: 10.1139/v07-057] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A recommended isotropic dipole oscillator strength distribution (DOSD) has been constructed for the ethylene molecule through the use of quantum mechanical constraint techniques and experimental dipole oscillator strength (DOS) data; the DOS data employed are recent experimental results not available at the time of the original constrained DOSD analysis of this molecule. The constraints are furnished by molar refractivity data and the Thomas–Reiche–Kuhn sum rule. The DOSD is used to evaluate a variety of isotropic dipole oscillator strength sums, logarithmic dipole oscillator strength sums, and mean excitation energies for ethylene. Pseudo-DOSDs for this molecule, and for propene and 1–butene, which are based on an earlier constrained DOSD analysis for these molecules, are developed. They are used to obtain reliable results for the isotropic dipole–dipole dispersion-energy coefficients C6, for the interactions of the alkenes with each other and with 47 other species, and the triple-dipole dispersion-energy coefficients C9 for interactions involving any triple of molecules taken from ethylene, propene, and 1–butene.Key words: alkenes, dipole properties, pseudo-states, dipole–dipole and triple-dipole dispersion energies, long-range additive, non-additive interaction energies.
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24
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Yang B, Stancil PC. Close-coupling study of rotational energy transfer and differential scattering in H2O collisions with He atoms. J Chem Phys 2007; 126:154306. [PMID: 17461625 DOI: 10.1063/1.2720390] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Quantum close-coupling scattering calculations of rotational energy transfer (RET) of rotationally excited H(2)O due to collisions with He are presented for collision energies between 10(-6) and 1000 cm(-1) with para-H(2)O initially in levels 1(1,1), 2(0,2), 2(1,1), and 2(2,0) and ortho-H(2)O in levels 1(1,0), 2(1,2), and 2(2,1). Quenching cross sections and rate coefficients for state-to-state RET were computed. Both elastic and inelastic differential cross sections are also calculated and compared with relative experimental results giving generally good agreement in all cases, but less so for inelastic results. Significant differences in the computed collisional parameters, obtained on three different potential energy surfaces (PESs), were found particularly in the ultracold regime. In the thermal regime, the rate coefficients calculated on each of the surfaces are generally in better agreement and comparable, but typically larger, than those obtained in a previous calculation. Unfortunately, a lack of absolute differential or integral inelastic experimental data prevents firm determination of a preferred PES.
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Affiliation(s)
- Benhui Yang
- Department of Physics and Astronomy, The University of Georgia, Athens, GA 30602, USA.
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Tulegenov AS, Wheatley RJ, Hodges MP, Harvey AH. Intermolecular potential and second virial coefficient of the water-nitrogen complex. J Chem Phys 2007; 126:094305. [PMID: 17362107 DOI: 10.1063/1.2446843] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The authors construct a rigid-body (five-dimensional) potential energy surface for the water-nitrogen complex using the systematic intermolecular potential extrapolation routine. The intermolecular potential is then extrapolated to the limit of a complete basis set. An analytic fit of this surface is obtained, and, using this, the global minimum energy is found. The minimum is located in an arrangement in which N2 is near the H atom of H2O, almost collinear with the OH bond. The best estimate of the binding energy is 441 cm-1 (1 cm-1 approximately 1.986 43x10(-23) J). The extrapolated potential is then used to calculate the second cross virial coefficient over a wide temperature range (100-3000 K). These calculated second virial coefficients are generally consistent with experimental data, but for the most part the former have smaller uncertainties.
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Affiliation(s)
- Akyl S Tulegenov
- School of Chemistry, The University of Nottingham, Nottingham NG7 2RD, United Kingdom
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Wheatley RJ, Tulegenov AS, Bichoutskaia * E. Intermolecular potentials from supermolecule and monomer calculations. INT REV PHYS CHEM 2007. [DOI: 10.1080/014423504200207772] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
| | - Akyl S. Tulegenov
- a School of Chemistry , University of Nottingham , Nottingham NG7 2RD, UK
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Akin-Ojo O, Harvey AH, Szalewicz K. Methane-water cross second virial coefficient with quantum corrections from an ab initio potential. J Chem Phys 2006; 125:014314. [PMID: 16863305 DOI: 10.1063/1.2207139] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We present our calculations of the cross second virial coefficient (B12) and of a related quantity, phi 12 = B12-TdB12/dT, for the methane-water system in the temperature range T = 200-1000 K. These calculations were performed using one of the ab initio potentials developed in previous work [Akin-Ojo and Szalewicz, J. Chem. Phys. 123, 134311 (2005)]. Quantum corrections of order variant Planck's over 2pi(2) were added to the computed classical values. We have estimated the uncertainties in our computed B12 and phi 12(T). This allowed evaluation of the quality of the experimental data to which we compare our results. We also provide an analytical expression for B12(T) as a function of the temperature T obtained by fitting the calculated values. This formula also predicts values of phi12(T) consistent with the directly calculated values.
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Affiliation(s)
- Omololu Akin-Ojo
- Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA.
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28
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Aquilanti V, Cornicchi E, Moix Teixidor M, Saendig N, Pirani F, Cappelletti D. Glory-Scattering Measurement of Water-Noble-Gas Interactions: The Birth of the Hydrogen Bond. Angew Chem Int Ed Engl 2005; 44:2356-60. [PMID: 15806609 DOI: 10.1002/anie.200462704] [Citation(s) in RCA: 96] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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29
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Aquilanti V, Cornicchi E, Moix Teixidor M, Saendig N, Pirani F, Cappelletti D. Glory-Scattering Measurement of Water-Noble-Gas Interactions: The Birth of the Hydrogen Bond. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200462704] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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30
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Bishop K, O'Connell JP. Aqueous Cross Second Virial Coefficients with the Hayden−O'Connell Correlation. Ind Eng Chem Res 2005. [DOI: 10.1021/ie049267n] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kyle Bishop
- Department of Chemical Engineering, University of Virginia, P.O. Box 400741, Charlottesville, Virginia 22904-4741
| | - John P. O'Connell
- Department of Chemical Engineering, University of Virginia, P.O. Box 400741, Charlottesville, Virginia 22904-4741
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31
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Kumar A, Jhanwar BL, Meath WJ. Dipole Oscillator Strength Distributions and Properties for Methanol, Ethanol and Propan-1-ol and Related Dispersion Energies. ACTA ACUST UNITED AC 2005. [DOI: 10.1135/cccc20051196] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Recommended isotropic dipole oscillator strength distributions (DOSDs) have been constructed for the methanol and ethanol molecules through the use of quantum mechanical constraint techniques and experimental dipole oscillator strength (DOS) data; the DOS data employed are recent experimental results not available at the time of the original constrained DOSD analysis of these molecules. The constraints are furnished by molar refractivity data and the Thomas-Reiche-Kuhn sum rule. The DOSDs are used to evaluate a variety of isotropic dipole oscillator strength sums, logarithmic dipole oscillator strength sums, and mean excitation energies for the molecules. Pseudo-DOSDs for these molecules, and for propan-1-ol based on an earlier constrained DOSD analysis for this molecule, are also presented. They are used to obtain reliable results for the isotropic dipole-dipole dispersion energy coefficients C6, for the interactions of the alcohols with each other and with 36 other species, and the triple-dipole dispersion energy coefficients C9for interactions involving any triple of molecules involving methanol, ethanol and propan-1-ol.
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Hodges MP, Wheatley RJ, Schenter GK, Harvey AH. Intermolecular potential and second virial coefficient of the water–hydrogen complex. J Chem Phys 2004; 120:710-20. [PMID: 15267906 DOI: 10.1063/1.1630960] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We construct a rigid-body (five-dimensional) potential-energy surface for the water-hydrogen complex using scaled perturbation theory (SPT). An analytic fit of this surface is obtained, and, using this, two minima are found. The global minimum has C2v symmetry, with the hydrogen molecule acting as a proton donor to the oxygen atom on water. A local minimum with Cs symmetry has the hydrogen molecule acting as a proton acceptor to one of the hydrogen atoms on water, where the OH bond and H2 are in a T-shaped configuration. The SPT global minimum is bound by 1097 microEh (Eh approximately 4.359744 x 10(-18) J). Our best estimate of the binding energy, from a complete basis set extrapolation of coupled-cluster calculations, is 1076.1 microEh. The fitted surface is used to calculate the second cross virial coefficient over a wide temperature range (100-3000 K). Three complementary methods are used to quantify quantum statistical mechanical effects that become significant at low temperatures. We compare our results with experimental data, which are available over a smaller temperature range (230-700 K). Generally good agreement is found, but the experimental data are subject to larger uncertainties.
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Affiliation(s)
- Matthew P Hodges
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom.
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Valderrama E, Wheatley RJ. An environmental pseudopotential approach to molecular interactions: Implementation in MOLPRO. J Comput Chem 2003; 24:2075-82. [PMID: 14531060 DOI: 10.1002/jcc.10353] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We present the implementation into the MOLPRO package of a model for the interaction of a central system with its surrounding environment. The properties of a target system enclosed by a noncovalently bound environment or solvent are modeled as those of a system embedded into the effective pseudopotential arising from the exact electrostatic Coulomb potential and the approximated exchange-repulsion potential. For the latter we use the charge-density overlap model, which relates the exchange-repulsion interaction energy between two species with the overlap of their ground-state electron charge densities. The solutions of the modified Hartree-Fock equations for the target system are obtained self-consistently. This way the exchange-induction effects arising from the converged electron-charge density of the embedded system are implicitly included. Inclusion of the correlation effects is provided by the use of post-Hartree-Fock and density-functional techniques available in the MOLPRO package. The computational and conceptual advantages provided by this approach are shown in the calculation of the dipole polarizabilities of halide and chalcogenide anions in different environments.
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Affiliation(s)
- E Valderrama
- Department of Chemistry, University of Nottingham, Nottingham NG7 2RD, United Kingdom
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Małolepsza E, Piela L. Pauli Hardness Study of the Methane, Ammonia, Water and Hydrogen Fluoride Molecules. J Phys Chem A 2003. [DOI: 10.1021/jp034423+] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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35
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Hodges MP, Wheatley RJ, Harvey AH. Intermolecular potentials and second virial coefficients of the water–neon and water–argon complexes. J Chem Phys 2002. [DOI: 10.1063/1.1504703] [Citation(s) in RCA: 51] [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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Hodges MP, Wheatley RJ. Scaled perturbation theory for weak intermolecular forces: the helium dimer. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s0166-1280(02)00211-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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38
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Patkowski K, Korona T, Moszynski R, Jeziorski B, Szalewicz K. Ab initio potential energy surface and second virial coefficient for He–H2O complex. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s0166-1280(02)00244-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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39
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Calderoni G, Cargnoni F, Famulari A, Raimondi M. An MO−VB Approach for the Determination of Intermolecular Forces. Theory and Calculations on the He2, He−CH4, and He−H2O Systems. J Phys Chem A 2002. [DOI: 10.1021/jp020681f] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Gabriele Calderoni
- Dipartimento di Chimica Fisica ed Elettrochimica and Istituto CNR−ISTM, Università degli Studi di Milano, via Golgi 19 -20133 Milano, Italy
| | - Fausto Cargnoni
- Dipartimento di Chimica Fisica ed Elettrochimica and Istituto CNR−ISTM, Università degli Studi di Milano, via Golgi 19 -20133 Milano, Italy
| | - Antonino Famulari
- Dipartimento di Chimica Fisica ed Elettrochimica and Istituto CNR−ISTM, Università degli Studi di Milano, via Golgi 19 -20133 Milano, Italy
| | - Mario Raimondi
- Dipartimento di Chimica Fisica ed Elettrochimica and Istituto CNR−ISTM, Università degli Studi di Milano, via Golgi 19 -20133 Milano, Italy
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