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Sahoo NP, Franke PR, Stanton JF. On the performance of composite schemes in determining equilibrium molecular structures. J Comput Chem 2024; 45:1419-1427. [PMID: 38450778 DOI: 10.1002/jcc.27312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 12/10/2023] [Accepted: 12/12/2023] [Indexed: 03/08/2024]
Abstract
Determination of equilibrium molecular structures is an essential ingredient in predicting spectroscopic parameters that help in identifying molecular carriers of microwave transitions. Here, the performance of two different ab initio composite approaches for obtaining equilibrium structures, "energy scheme" and "geometry scheme," is explored and compared to semi-experimental equilibrium structures. This study is performed for a set of 11 molecules which includes diatomics, linear triatomics, and a few non-linear molecules. The ab initio calculations were performed using three tiers of composite chemical recipes. The current results show that as the overall rigor of calculation is increased, the semi-experimental and the ab initio numbers agree to within 0.0003 Å for all molecules in the test set. The composite approach based on correcting the potential energy surface (energy scheme) and the one based on correcting the geometry directly (geometry scheme) show excellent agreement with each other. This work represents a step toward development of efficient and highly accurate procedures for computing ab initio equilibrium structures.
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Affiliation(s)
- Nitai P Sahoo
- Department of Chemistry, University of Florida, Gainesvillle, Florida, USA
| | - Peter R Franke
- Department of Chemistry, University of Florida, Gainesvillle, Florida, USA
| | - John F Stanton
- Department of Chemistry, University of Florida, Gainesvillle, Florida, USA
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2
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Godard Paluet A, Thibault F, Lique F. Rotational excitation of CO 2 induced by He: New potential energy surface and scattering calculations. J Chem Phys 2022; 156:104303. [DOI: 10.1063/5.0085094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The CO2 molecule is of great interest for astrophysical studies since it can be found in a large variety of astrophysical media where it interacts with the dominant neutral species, such as He, H2, or H2O. The CO2–He collisional system was intensively studied over the last two decades. However, collisional data appear to be very sensitive to the potential energy surface (PES) quality. Thus, we provide, in this study, a new PES of the CO2–He van der Waals complex calculated with the coupled-cluster method and a complete basis set extrapolation in order to provide rotational rate coefficients that are as accurate as possible. The PES accuracy was tested through the calculations of bound state transition frequencies and pressure broadening coefficients that were compared to experimental data. An excellent agreement was globally found. Then, revised collisional data were provided for the 10–300 K temperature range. Rate coefficients were compared to previously computed ones and are found to be up to 50% greater than previously provided ones. These differences can induce non-negligible consequences for the modeling of CO2 abundance in astrophysical media.
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Affiliation(s)
- A. Godard Paluet
- Université de Rennes 1, CNRS, IPR (Institut de Physique de Rennes)—UMR 6251, F-35000 Rennes, France
| | - F. Thibault
- Université de Rennes 1, CNRS, IPR (Institut de Physique de Rennes)—UMR 6251, F-35000 Rennes, France
| | - F. Lique
- Université de Rennes 1, CNRS, IPR (Institut de Physique de Rennes)—UMR 6251, F-35000 Rennes, France
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3
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Breier AA, Giesen TF, Ross SC, Yamada KM. Improved bond length determination technique for C3 and other linear molecules with a large amplitude bending vibration. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128329] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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4
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Vishnevskiy YV, Blomeyer S, Reuter CG. Gas standards in gas electron diffraction: accurate molecular structures of CO2 and CCl4. Struct Chem 2019. [DOI: 10.1007/s11224-019-01443-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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5
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Adsorption of CO2 on sodium iodide (NaI)n (n ≤ 10) clusters: A density functional theory investigation. COMPUT THEOR CHEM 2018. [DOI: 10.1016/j.comptc.2018.10.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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6
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Carbon dioxide interacting with rare gases: Insights from high-level ab initio calculations of polarizability and hyperpolarizability effects. Chem Phys 2016. [DOI: 10.1016/j.chemphys.2016.07.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Jiang H, Moultos OA, Economou IG, Panagiotopoulos AZ. Gaussian-Charge Polarizable and Nonpolarizable Models for CO2. J Phys Chem B 2016; 120:984-94. [DOI: 10.1021/acs.jpcb.5b11701] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hao Jiang
- Department
of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Othonas A. Moultos
- Chemical Engineering Program, Texas A&M University at Qatar, P.O. Box 23874, Doha, Qatar
| | - Ioannis G. Economou
- Chemical Engineering Program, Texas A&M University at Qatar, P.O. Box 23874, Doha, Qatar
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8
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Naves ES, Castro MA, Fonseca TL. Vibrational corrections to hyperpolarizabilities of the O3, SO2, N2O and CO2 molecules: A comparison between variational and perturbation methods. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.05.072] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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9
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Bozkaya U. Analytic energy gradients for the orbital-optimized third-order Møller-Plesset perturbation theory. J Chem Phys 2014; 139:104116. [PMID: 24050337 DOI: 10.1063/1.4820877] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Analytic energy gradients for the orbital-optimized third-order Møller-Plesset perturbation theory (OMP3) [U. Bozkaya, J. Chem. Phys. 135, 224103 (2011)] are presented. The OMP3 method is applied to problematic chemical systems with challenging electronic structures. The performance of the OMP3 method is compared with those of canonical second-order Møller-Plesset perturbation theory (MP2), third-order Møller-Plesset perturbation theory (MP3), coupled-cluster singles and doubles (CCSD), and coupled-cluster singles and doubles with perturbative triples [CCSD(T)] for investigating equilibrium geometries, vibrational frequencies, and open-shell reaction energies. For bond lengths, the performance of OMP3 is in between those of MP3 and CCSD. For harmonic vibrational frequencies, the OMP3 method significantly eliminates the singularities arising from the abnormal response contributions observed for MP3 in case of symmetry-breaking problems, and provides noticeably improved vibrational frequencies for open-shell molecules. For open-shell reaction energies, OMP3 exhibits a better performance than MP3 and CCSD as in case of barrier heights and radical stabilization energies. As discussed in previous studies, the OMP3 method is several times faster than CCSD in energy computations. Further, in analytic gradient computations for the CCSD method one needs to solve λ-amplitude equations, however for OMP3 one does not since λ(ab)(ij(1))=t(ij)(ab(1)) and λ(ab)(ij(2))=t(ij)(ab(2)). Additionally, one needs to solve orbital Z-vector equations for CCSD, but for OMP3 orbital response contributions are zero owing to the stationary property of OMP3. Overall, for analytic gradient computations the OMP3 method is several times less expensive than CCSD (roughly ~4-6 times). Considering the balance of computational cost and accuracy we conclude that the OMP3 method emerges as a very useful tool for the study of electronically challenging chemical systems.
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Affiliation(s)
- Uğur Bozkaya
- Department of Chemistry, Atatürk University, Erzurum 25240, Turkey
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11
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Sebald P, Stein C, Oswald R, Botschwina P. Rovibrational States of N3– and CO2 Up to High J: A Theoretical Study Beyond fc-CCSD(T). J Phys Chem A 2013; 117:13806-14. [DOI: 10.1021/jp4081806] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Peter Sebald
- Institute of Physical Chemistry, University of Göttingen, Tammannstraße 6, 37077 Göttingen, Germany
| | - Christopher Stein
- Institute of Physical Chemistry, University of Göttingen, Tammannstraße 6, 37077 Göttingen, Germany
| | - Rainer Oswald
- Institute of Physical Chemistry, University of Göttingen, Tammannstraße 6, 37077 Göttingen, Germany
| | - Peter Botschwina
- Institute of Physical Chemistry, University of Göttingen, Tammannstraße 6, 37077 Göttingen, Germany
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Kawashima Y, Sato A, Orita Y, Hirota E. Intermolecular Interaction between CO or CO2 and Ethylene Oxide or Ethylene Sulfide in a Complex, Investigated by Fourier Transform Microwave Spectroscopy and Ab Initio Calculations. J Phys Chem A 2012; 116:1224-36. [DOI: 10.1021/jp211030h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yoshiyuki Kawashima
- Department of Applied Chemistry, Faculty of Engineering, Kanagawa Institute of Technology, Atsugi, Kanagawa 240-0292, Japan
| | - Akinori Sato
- Department of Applied Chemistry, Faculty of Engineering, Kanagawa Institute of Technology, Atsugi, Kanagawa 240-0292, Japan
| | - Yukari Orita
- Department of Applied Chemistry, Faculty of Engineering, Kanagawa Institute of Technology, Atsugi, Kanagawa 240-0292, Japan
| | - Eizi Hirota
- The Graduate University for Advanced Studies, Hayama,
Kanagawa 240-0193, Japan
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14
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Persson RAX. Simple One-Center Model for Linear Molecules: Application to Carbon Dioxide. J Phys Chem B 2011; 115:10073-8. [DOI: 10.1021/jp2050492] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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15
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Persson RAX. Gaussian charge polarizable interaction potential for carbon dioxide. J Chem Phys 2011; 134:034312. [DOI: 10.1063/1.3519022] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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16
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Frohman DJ, Contreras ES, Firestone RS, Novick SE, Klemperer W. Microwave spectra, structure, and dynamics of the weakly bound complex, N2 CO2. J Chem Phys 2010; 133:244303. [DOI: 10.1063/1.3517061] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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17
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G. COLUMBERG A. BAUDER N. HEINEKING. Internal rotation effects and hyperfine structure in the rotational spectrum of a water–carbon dioxide complex. Mol Phys 2010. [DOI: 10.1080/002689798169221] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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18
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19
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Liang Z, Tsai HL. Calculation of thermophysical properties for CO2gas using anab initiopotential model. Mol Phys 2010. [DOI: 10.1080/00268971003670873] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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20
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Vydrov OA, Van Voorhis T. Improving the accuracy of the nonlocal van der Waals density functional with minimal empiricism. J Chem Phys 2009; 130:104105. [DOI: 10.1063/1.3079684] [Citation(s) in RCA: 156] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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21
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Rauhut G, Knizia G, Werner HJ. Accurate calculation of vibrational frequencies using explicitly correlated coupled-cluster theory. J Chem Phys 2009; 130:054105. [DOI: 10.1063/1.3070236] [Citation(s) in RCA: 157] [Impact Index Per Article: 10.5] [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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Vydrov OA, Wu Q, Van Voorhis T. Self-consistent implementation of a nonlocal van der Waals density functional with a Gaussian basis set. J Chem Phys 2008; 129:014106. [DOI: 10.1063/1.2948400] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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23
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Shepard R, Kedziora GS, Lischka H, Shavitt I, Müller T, Szalay PG, Kállay M, Seth M. The accuracy of molecular bond lengths computed by multireference electronic structure methods. Chem Phys 2008. [DOI: 10.1016/j.chemphys.2008.03.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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24
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Zhang Y, Xu X, Yan Y. Systematic investigation on the geometric dependence of the calculated nuclear magnetic shielding constants. J Comput Chem 2008; 29:1798-807. [DOI: 10.1002/jcc.20941] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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Jabs W, Willaert FF, McElmurry BA, Rivera-Rivera LA, Montuoro R, Lucchese RR, Bevan JW, Suenram RD. Microwave-Based Structure and Four-Dimensional Morphed Intermolecular Potential for HI−CO2. J Phys Chem A 2007; 111:11976-85. [DOI: 10.1021/jp0744275] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wolfgang Jabs
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, and Optical Technology Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
| | - Fabrice F. Willaert
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, and Optical Technology Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
| | - Blake A. McElmurry
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, and Optical Technology Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
| | - Luis. A. Rivera-Rivera
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, and Optical Technology Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
| | - Raffaele Montuoro
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, and Optical Technology Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
| | - Robert R. Lucchese
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, and Optical Technology Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
| | - John W. Bevan
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, and Optical Technology Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
| | - Richard D. Suenram
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, and Optical Technology Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
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26
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27
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Teffo JL, Ogilvie J. Born-Oppenheimer effects and vibration-rotational spectra of linear molecules. Mol Phys 2006. [DOI: 10.1080/00268979300103181] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- J.-L. Teffo
- a Laboratoire de Physique Moléculaire et Applications , CNRS, Université Pierre et Marie Curie , Boite 76, 4 place Jussieu, F75252 , Paris cedex 05 , FranceLaboratoire associé aux Universités Pierre et Marie Curie et Paris-Sud
| | - J.F. Ogilvie
- b Academia Sinica , Institute of Atomic and Molecular Sciences , P. O. Box 23-166, Taipei , 10764 , Taiwan
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28
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Dipole and quadrupole (hyper)polarizability for the asymmetric stretching of carbon dioxide: Improved agreement between theory and experiment. Chem Phys Lett 2006. [DOI: 10.1016/j.cplett.2005.10.023] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Jacob CR, Wesolowski TA, Visscher L. Orbital-free embedding applied to the calculation of induced dipole moments in CO2⋯X (X=He, Ne, Ar, Kr, Xe, Hg) van der Waals complexes. J Chem Phys 2005; 123:174104. [PMID: 16375514 DOI: 10.1063/1.2107567] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The orbital-free frozen-density embedding scheme within density-functional theory [T. A. Wesolowski and A. Warshel, J. Phys. Chem. 97, 8050 (1993)] is applied to the calculation of induced dipole moments of the van der Waals complexes CO2...X (X = He, Ne, Ar, Kr, Xe, Hg). The accuracy of the embedding scheme is investigated by comparing to the results of supermolecule Kohn-Sham density-functional theory calculations. The influence of the basis set and the consequences of using orbital-dependent approximations to the exchange-correlation potential in embedding calculations are examined. It is found that in supermolecular Kohn-Sham density-functional calculations, different common approximations to the exchange-correlation potential are not able to describe the induced dipole moments correctly and the reasons for this failure are analyzed. It is shown that the orbital-free embedding scheme is a useful tool for applying different approximations to the exchange-correlation potential in different subsystems and that a physically guided choice of approximations for the different subsystems improves the calculated dipole moments significantly.
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Affiliation(s)
- Christoph R Jacob
- Department of Theoretical Chemistry, Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands.
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31
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Botschwina * P. Accurate equilibrium structures for small polyatomic molecules, radicals and carbenes. Mol Phys 2005. [DOI: 10.1080/00268970500070116] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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32
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Krekeler C, Mladenovi? M, Botschwina P. A theoretical investigation of the vibrational states of HCO2? and its isotopomers. Phys Chem Chem Phys 2005; 7:882-7. [DOI: 10.1039/b417942k] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Bos R, Barnett NW, Dyson GA, Lim KF, Russell RA, Watson SP. Studies on the mechanism of the peroxyoxalate chemiluminescence reaction. Anal Chim Acta 2004. [DOI: 10.1016/j.aca.2003.10.014] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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34
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Maroulis G, Haskopoulos A. Interaction induced dipole moment and polarizability in CO2⋯Rg, Rg=He, Ne, Ar, Kr and Xe. Chem Phys Lett 2001. [DOI: 10.1016/s0009-2614(01)01206-4] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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35
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Le Guennec M, Evain K, Illien B. Calculation of static mean polarisability and polarisability anisotropy. Statistical comparison with the results of gases and influence of the geometrical parameters. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s0166-1280(00)00812-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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36
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37
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He Y, Cremer D. Molecular Geometries at Sixth Order Møller−Plesset Perturbation Theory. At What Order Does MP Theory Give Exact Geometries? J Phys Chem A 2000. [DOI: 10.1021/jp0014770] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuan He
- Department of Theoretical Chemistry, Göteborg University, Reutersgatan 2, S-41320 Göteborg, Sweden
| | - Dieter Cremer
- Department of Theoretical Chemistry, Göteborg University, Reutersgatan 2, S-41320 Göteborg, Sweden
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38
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Bock S, Bich E, Vogel E. A new intermolecular potential energy surface for carbon dioxide from ab initio calculations. Chem Phys 2000. [DOI: 10.1016/s0301-0104(00)00161-0] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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39
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Misquitta AJ, Bukowski R, Szalewicz K. Spectra of Ar–CO2 fromab initiopotential energy surfaces. J Chem Phys 2000. [DOI: 10.1063/1.481120] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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40
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Margulès L, Demaison J, Boggs JE. Equilibrium C−F Bond Length and the Structure of Formyl Fluoride, Difluorocarbene, Monofluoromethylene, and Difluoromethane. J Phys Chem A 1999. [DOI: 10.1021/jp991417y] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- L. Margulès
- Laboratoire de Physique des Lasers, Atomes et Molécules, UMR CNRS 8523, Bât. P5, Université de Lille 1, 59655 Villeneuve d'Ascq Cedex, France
| | - J. Demaison
- Laboratoire de Physique des Lasers, Atomes et Molécules, UMR CNRS 8523, Bât. P5, Université de Lille 1, 59655 Villeneuve d'Ascq Cedex, France
| | - James E. Boggs
- Institute for Theoretical Chemistry, Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712
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41
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Bukowski R, Szalewicz K, Chabalowski CF. Ab Initio Interaction Potentials for Simulations of Dimethylnitramine Solutions in Supercritical Carbon Dioxide with Cosolvents. J Phys Chem A 1999. [DOI: 10.1021/jp991212p] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Robert Bukowski
- Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, and Quantum Chemistry Laboratory, Department of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland
| | - Krzysztof Szalewicz
- Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, and Quantum Chemistry Laboratory, Department of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland
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Watson JK, Roytburg A, Ulrich W. Least-Squares Mass-Dependence Molecular Structures. JOURNAL OF MOLECULAR SPECTROSCOPY 1999; 196:102-119. [PMID: 10361061 DOI: 10.1006/jmsp.1999.7843] [Citation(s) in RCA: 140] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The major part of the difference between the zero-point and equilibrium moment of inertia of a molecule is a homogeneous function of degree 12 in the atomic masses. The use of explicit mathematical models of is studied here as a means of determining near-equilibrium molecular structures from the zero-point moments of inertia of a range of isotopomers. It is found that models with more than two parameters per axis generally give strongly correlated fits for the number of isotopomers typically available. The two-parameter model, where N is the number of atoms, mi are the atomic masses, and M is the molecular mass, usually gives well-conditioned fits with standard deviations in the parts-per-million range, and structures called that are often close to equilibrium structures. Laurie-type corrections for hydrogen atoms and parameters to describe isotopic rotations of the epsilon tensor can also be included. Copyright 1999 Academic Press.
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Affiliation(s)
- JK Watson
- Steacie Institute for Molecular Sciences, National Research Council of Canada, Ottawa, Ontario, K1A 0R6, Canada
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43
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Bukowski R, Sadlej J, Jeziorski B, Jankowski P, Szalewicz K, Kucharski SA, Williams HL, Rice BM. Intermolecular potential of carbon dioxide dimer from symmetry-adapted perturbation theory. J Chem Phys 1999. [DOI: 10.1063/1.479108] [Citation(s) in RCA: 260] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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44
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The calculation of frequency-dependent polarizabilities using current density functional theory. Chem Phys Lett 1997. [DOI: 10.1016/s0009-2614(97)00978-0] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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