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Ulenikov O, Bekhtereva E, Gromova O, Fomchenko A, Morzhikova Y, Sidko S, Sydow C, Bauerecker S. Effective Dipole Moment Model for Axially Symmetric C3v Molecules: Application to the Precise Study of Absolute Line Strengths of the ν6 Fundamental of CH 335Cl. Int J Mol Sci 2023; 24:12122. [PMID: 37569499 PMCID: PMC10418978 DOI: 10.3390/ijms241512122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 07/21/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023] Open
Abstract
The effective dipole moment model for molecules of axial C3v symmetry is derived on the basis of the symmetry properties of a molecule which, on the one hand, is of the same order of efficiency (but much simpler and clearer in applications) as the analogous models derived on the basis of the irreducible tensorial sets theory, and, on the other hand, mathematically more correct in comparison with concepts like the Herman-Walles function used in the models. As an application of the general results obtained, we discuss high-resolution infrared spectra of CH335Cl, recorded with the Zürich prototype ZP2001 (Bruker IFS125 HR) Fourier transform infrared spectrometer at a resolution of 0.001 cm-1 and analyzed in the region of 880-1190 cm-1 (ν6 bending fundamental centered at ν0 = 1018.070790 cm-1). Absolute strengths of more than 2800 transitions (2081 lines) were obtained from the fit of their shapes both with Voigt and Hartmann-Tran profiles, and parameters of the effective dipole moment of the ν6 band were determined by the computer code SYMTOMLIST (SYMmetric TOp Molecules: LIne STrengths), created on the basis of a derived theoretical model. As the first step of the analysis of the experimental data, assignments of the recorded lines were made. A total of 5124 transitions with Jmax = 68, Kmax = 21 were assigned to the ν6 band. The weighted fit of 2077 upper energy values obtained from the experimentally recorded transitions was made with a Hamiltonian which takes into account different types of ro-vibrational effects in doubly degenerate vibrational states of the C3v-symmetric molecule. As the result, a set of 25 fitted parameters was obtained which reproduces the initial 2077 upper "experimental" ro-vibrational energy values with a root mean square deviation drms=4.7×10-5 cm-1. At the second step of the analysis, the computer code SYMTOMLIST was used for determination of the parameters of the derived effective dipole moment model. Six effective dipole moment parameters were obtained from the weighted fit procedure which reproduces absolute experimental strengths of the 2804 initial experimental transitions with a relative drms=3.4%.
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Affiliation(s)
- Oleg Ulenikov
- Research School of High-Energy Physics, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia; (E.B.); (O.G.); (A.F.); (Y.M.); (S.S.)
| | - Elena Bekhtereva
- Research School of High-Energy Physics, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia; (E.B.); (O.G.); (A.F.); (Y.M.); (S.S.)
| | - Olga Gromova
- Research School of High-Energy Physics, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia; (E.B.); (O.G.); (A.F.); (Y.M.); (S.S.)
| | - Anna Fomchenko
- Research School of High-Energy Physics, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia; (E.B.); (O.G.); (A.F.); (Y.M.); (S.S.)
| | - Yulia Morzhikova
- Research School of High-Energy Physics, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia; (E.B.); (O.G.); (A.F.); (Y.M.); (S.S.)
| | - Sergei Sidko
- Research School of High-Energy Physics, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia; (E.B.); (O.G.); (A.F.); (Y.M.); (S.S.)
| | - Christian Sydow
- Institut für Physikalische und Theoretische Chemie, Technische Universität Braunschweig, D-38106 Braunschweig, Germany; (C.S.); (S.B.)
| | - Sigurd Bauerecker
- Institut für Physikalische und Theoretische Chemie, Technische Universität Braunschweig, D-38106 Braunschweig, Germany; (C.S.); (S.B.)
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2
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Ulenikov ON, Bekhtereva ES, Gromova OV, Morzhikova YB, Sydow C, Berezkin K, Maul C, Bauerecker S. High-resolution spectroscopy of C 2H 3D: Line positions and energy structure of the strongly interacting ν 10,ν 7,ν 8,ν 4 and ν 6 bands. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 279:121401. [PMID: 35636136 DOI: 10.1016/j.saa.2022.121401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 05/11/2022] [Accepted: 05/13/2022] [Indexed: 06/15/2023]
Abstract
High resolution infrared spectra of C2H3D were recorded in the region of 550-1950 cm-1 with a Bruker IFS125 HR Fourier transform infrared spectrometers and rotational structures of the five lowest strongly interacting ν10, ν7,ν8,ν4 and ν6 bands were analyzed. The number of about 28000 transitions (4200/6800/5600/5000/6400 for the bands ν10,ν7,ν8,ν4 and ν6) with Jmax = 40 and Kamax = 20 were assigned to these five bands. The weighted fit of 3990 upper energy values obtained from the experimentally recorded transitions was made with a Hamiltonian which takes into account resonance interactions between all studied bands as well as with the sixth ν3 band which was considered in this case as a "dark" one. As the result of analysis, a set of 279 fitted parameters was obtained which reproduces the initial 3990 upper "experimental" ro-vibrational energy values with the drms=1.7×10-4 cm-1; the initial nonsaturated, unblended and not very weak of 28000 assigned transitions are reproduced with the drms=2.2×10-4 cm-1. Ground state parameters of the C2H3D molecule were improved as well.
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Affiliation(s)
- O N Ulenikov
- Research School of High-Energy Physics, National Research Tomsk Polytechnic University, Tomsk 634050, Russia.
| | - E S Bekhtereva
- Research School of High-Energy Physics, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - O V Gromova
- Research School of High-Energy Physics, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Yu B Morzhikova
- Research School of High-Energy Physics, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - C Sydow
- Institut für Physikalische und Theoretische Chemie, Technische Universität Braunschweig, D - 38106 Braunschweig, Germany
| | - K Berezkin
- Institut für Physikalische und Theoretische Chemie, Technische Universität Braunschweig, D - 38106 Braunschweig, Germany
| | - C Maul
- Institut für Physikalische und Theoretische Chemie, Technische Universität Braunschweig, D - 38106 Braunschweig, Germany
| | - S Bauerecker
- Institut für Physikalische und Theoretische Chemie, Technische Universität Braunschweig, D - 38106 Braunschweig, Germany.
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3
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Tasinato N, Pietropolli Charmet A, Ceselin G, Salta Z, Stoppa P. In Vitro and In Silico Vibrational-Rotational Spectroscopic Characterization of the Next-Generation Refrigerant HFO-1123. J Phys Chem A 2022; 126:5328-5342. [PMID: 35930010 PMCID: PMC9393866 DOI: 10.1021/acs.jpca.2c04680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Very short-lived substances have recently been proposed
as replacements
for hydrofluorocarbons (HFCs), in turn being used in place of ozone-depleting
substances, in refrigerant applications. In this respect, hydro-fluoro-olefins
(HFOs) are attracting particular interest because, due to their reduced
global warming potential, they are supposed to be environmentally
friendlier. Notwithstanding this feature, they represent a new class
of compounds whose spectroscopic properties and reactivity need to
be characterized to allow their atmospheric monitoring and to understand
their environmental fate. In the present work, the structural, vibrational,
and ro-vibrational properties of trifluorothene (HFO-1123, F2C = CHF) are studied by state-of-the-art quantum chemical calculations.
The equilibrium molecular structure has an expected error within 2
mÅ and 0.2° for bond lengths and angles, respectively. This
represents the first step toward the computation of highly accurate
rotational constants for both the ground and first excited fundamental
vibrational levels, which reproduce the available experimental data
well within 0.1%. Centrifugal distortion parameters and vibrational–rotational
coupling terms are computed as well and used to solve some conflicting
experimental results. Simulation of the vibrational transition frequencies
and intensities beyond the double harmonic approximation and up to
three quanta of vibrational excitation provides insights into the
couplings ruling the vibrational dynamics and guides the characterization
of the gas-phase infrared spectrum experimentally recorded in the
range of 200–5000 cm–1. The full characterization
of the IR features is completed with the experimental determination
of the absorption cross sections over the 400–5000 cm–1 region from which the radiative forcing and global warming potential
of HFO-1123 are derived.
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Affiliation(s)
- Nicola Tasinato
- Scuola Normale Superiore, SMART Laboratory, Piazza dei Cavalieri 7, I-56126 Pisa, Italy
| | - Andrea Pietropolli Charmet
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Venezia, Via Torino 155, I-30172 Mestre, Italy
| | - Giorgia Ceselin
- Scuola Normale Superiore, SMART Laboratory, Piazza dei Cavalieri 7, I-56126 Pisa, Italy
| | - Zoi Salta
- Scuola Normale Superiore, SMART Laboratory, Piazza dei Cavalieri 7, I-56126 Pisa, Italy
| | - Paolo Stoppa
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Venezia, Via Torino 155, I-30172 Mestre, Italy
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4
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Caviezel M, Horká-Zelenková V, Seyfang G, Quack M. High resolution FTIR and diode laser spectroscopy of trifluoromethylacetylene and tetrafluoromethane in a supersonic jet expansion. Mol Phys 2022. [DOI: 10.1080/00268976.2022.2093285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- M. Caviezel
- Laboratorium für Physikalische Chemie, ETH Zürich, Zürich, Switzerland
| | | | - G. Seyfang
- Laboratorium für Physikalische Chemie, ETH Zürich, Zürich, Switzerland
| | - M. Quack
- Laboratorium für Physikalische Chemie, ETH Zürich, Zürich, Switzerland
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5
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Tyuterev V, Tashkun S, Rey M, Nikitin A. High-order contact transformations of molecular Hamiltonians: general approach, fast computational algorithm and convergence of ro-vibrational polyad models. Mol Phys 2022. [DOI: 10.1080/00268976.2022.2096140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Vladimir Tyuterev
- Groupe de Spectrométrie Moléculaire et Atmosphérique, Université de Reims, Reims, France
- Laboratory of Molecular Quantum Mechanics and Radiative Transfer, Tomsk State University, Tomsk, Russia
| | - Sergey Tashkun
- Laboratory of Theoretical Spectroscopy, V.E. Zuev Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, Tomsk, Russia
| | - Michael Rey
- Groupe de Spectrométrie Moléculaire et Atmosphérique, Université de Reims, Reims, France
| | - Andrei Nikitin
- Laboratory of Theoretical Spectroscopy, V.E. Zuev Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, Tomsk, Russia
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6
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Zhao Z, Chen J, Zhang Z, Zhang DH, Lauvergnat D, Gatti F. Full-dimensional vibrational calculations of five-atom molecules using a combination of Radau and Jacobi coordinates: Applications to methane and fluoromethane. J Chem Phys 2016; 144:204302. [DOI: 10.1063/1.4950028] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Zhiqiang Zhao
- State Key Laboratory of Molecular Reaction Dynamics and Center for Theoretical and Computational Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Jun Chen
- State Key Laboratory of Molecular Reaction Dynamics and Center for Theoretical and Computational Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Zhaojun Zhang
- State Key Laboratory of Molecular Reaction Dynamics and Center for Theoretical and Computational Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Dong H. Zhang
- State Key Laboratory of Molecular Reaction Dynamics and Center for Theoretical and Computational Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - David Lauvergnat
- CNRS, Laboratoire de Chimie Physique (UMR 8000), Université Paris-Sud, F-91405 Orsay, France
| | - Fabien Gatti
- CTMM, Institut Charles Gerhardt (UMR 5253), CC 1501, Université Montpellier, F-34095 Montpellier, Cedex 05, France
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7
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Yu HG, Han H, Guo H. Full-Dimensional Quantum Calculations of Vibrational Levels of NH4+ and Isotopomers on An Accurate Ab Initio Potential Energy Surface. J Phys Chem A 2016; 120:2185-93. [DOI: 10.1021/acs.jpca.6b01946] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hua-Gen Yu
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Huixian Han
- Department
of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
- School of Physics, Northwest University, Xi’an, Shaanxi 710069, China
| | - Hua Guo
- Department
of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
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8
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Yu HG. Accurate quantum dynamics calculations of vibrational spectrum of dideuteromethane CH2D2. J Chem Phys 2015; 142:194307. [DOI: 10.1063/1.4921411] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Hua-Gen Yu
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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9
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Rey M, Nikitin AV, Tyuterev VG. First Predictions of Rotationally Resolved Infrared Spectra of Dideuteromethane (12CH2D2) From Potential Energy and Dipole Moment Surfaces. J Phys Chem A 2015; 119:4763-79. [DOI: 10.1021/acs.jpca.5b00587] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michaël Rey
- Groupe
de Spectrométrie Moléculaire et Atmosphérique, UMR CNRS 7331, BP 1039, F-51687, Reims Cedex 2, France
| | - Andrei V. Nikitin
- Laboratory
of Theoretical Spectroscopy, Institute of Atmospheric Optics, SB RAS, 634055 TOMSK, Russia
| | - Vladimir G. Tyuterev
- Groupe
de Spectrométrie Moléculaire et Atmosphérique, UMR CNRS 7331, BP 1039, F-51687, Reims Cedex 2, France
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10
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Ulenikov ON, Bekhtereva ES, Albert S, Bauerecker S, Niederer HM, Quack M. Survey of the high resolution infrared spectrum of methane (12CH4and13CH4): Partial vibrational assignment extended towards 12 000 cm−1. J Chem Phys 2014; 141:234302. [DOI: 10.1063/1.4899263] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- O. N. Ulenikov
- Physical Chemistry, ETH Zürich, CH-8093 Zürich, Switzerland
- Institute of Physics and Technology National Research, Tomsk Polytechnic University, Tomsk 634050, Russia
| | - E. S. Bekhtereva
- Physical Chemistry, ETH Zürich, CH-8093 Zürich, Switzerland
- Institute of Physics and Technology National Research, Tomsk Polytechnic University, Tomsk 634050, Russia
| | - S. Albert
- Physical Chemistry, ETH Zürich, CH-8093 Zürich, Switzerland
- Swiss Light Source, Paul-Scherrer-Institute, CH-5232 Villigen, Switzerland
| | - S. Bauerecker
- Physical Chemistry, ETH Zürich, CH-8093 Zürich, Switzerland
- Institut für Physikalische und Theoretische Chemie, Technische Universität Braunschweig, D-38106 Braunschweig, Germany
| | - H. M. Niederer
- Physical Chemistry, ETH Zürich, CH-8093 Zürich, Switzerland
| | - M. Quack
- Physical Chemistry, ETH Zürich, CH-8093 Zürich, Switzerland
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11
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Wang XG, Carrington T. Using experimental data and a contracted basis Lanczos method to determine an accurate methane potential energy surface from a least squares optimization. J Chem Phys 2014; 141:154106. [DOI: 10.1063/1.4896569] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Xiao-Gang Wang
- Chemistry Department, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - Tucker Carrington
- Chemistry Department, Queen's University, Kingston, Ontario K7L 3N6, Canada
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12
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Ulenikov O, Bekhtereva E, Fomchenko A, Litvinovskaya A, Leroy C, Quack M. On the ‘expanded local mode’ approach applied to the methane molecule: isotopic substitutions CH3D ←CH4 and CHD3 ←CH4. Mol Phys 2014. [DOI: 10.1080/00268976.2014.912360] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- O.N. Ulenikov
- Institute of Physics and Technology, National Research Tomsk Polytechnic University, Tomsk, Russia
- Physics Department, National Research Tomsk State University, Tomsk, Russia
| | - E.S. Bekhtereva
- Institute of Physics and Technology, National Research Tomsk Polytechnic University, Tomsk, Russia
- Physics Department, National Research Tomsk State University, Tomsk, Russia
| | - A.L. Fomchenko
- Physics Department, National Research Tomsk State University, Tomsk, Russia
- Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR CNRS 6303, Université de Bourgogne, Dijon, France
| | - A.G. Litvinovskaya
- Physics Department, National Research Tomsk State University, Tomsk, Russia
| | - C. Leroy
- Institute of Physics and Technology, National Research Tomsk Polytechnic University, Tomsk, Russia
- Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR CNRS 6303, Université de Bourgogne, Dijon, France
| | - M. Quack
- Physical Chemistry, ETH-Zürich, CH-8093, Zürich, Switzerland
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13
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Ulenikov ON, Bekhtereva ES, Konova MR, Krivchikova YV, Horneman VM. On the improvement of the rotational structure analysis of 13CH 3D ground vibrational state. Mol Phys 2013. [DOI: 10.1080/00268976.2013.798437] [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)
- O. N. Ulenikov
- Laboratory of Molecular Spectroscopy, Physics Department, National Research Tomsk State University , Tomsk, 634050, Russia
| | - E. S. Bekhtereva
- Laboratory of Molecular Spectroscopy, Physics Department, National Research Tomsk State University , Tomsk, 634050, Russia
| | - M. R. Konova
- Laboratory of Molecular Spectroscopy, Physics Department, National Research Tomsk State University , Tomsk, 634050, Russia
| | - Yu V. Krivchikova
- Laboratory of Molecular Spectroscopy, Physics Department, National Research Tomsk State University , Tomsk, 634050, Russia
| | - V. -M. Horneman
- Department of Physics, University of Oulu , P. O. Box 3000, FIN-90014 University of Oulu, Finland
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14
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Nikitin AV, Boudon V, Wenger C, Albert S, Brown LR, Bauerecker S, Quack M. High resolution spectroscopy and the first global analysis of the Tetradecad region of methane 12CH4. Phys Chem Chem Phys 2013; 15:10071-93. [DOI: 10.1039/c3cp50799h] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Tanner CM, Quack M. Reinvestigation of the ν2 + 2ν3subband in the overtone icosad of12CH4using cavity ring-down (CRD) spectroscopy of a supersonic jet expansion. Mol Phys 2012. [DOI: 10.1080/00268976.2012.702934] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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16
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Tasinato N, Regini G, Stoppa P, Charmet AP, Gambi A. Anharmonic force field and vibrational dynamics of CH2F2 up to 5000 cm−1 studied by Fourier transform infrared spectroscopy and state-of-the-art ab initio calculations. J Chem Phys 2012; 136:214302. [DOI: 10.1063/1.4720502] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [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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Barker JR, Nguyen TL, Stanton JF. Kinetic Isotope Effects for Cl + CH4 ⇌ HCl + CH3 Calculated Using ab Initio Semiclassical Transition State Theory. J Phys Chem A 2012; 116:6408-19. [DOI: 10.1021/jp212383u] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- John R. Barker
- Department of Atmospheric,
Oceanic and Space Sciences, University of Michigan, Ann Arbor, Michigan 48109-2143, United States
| | - Thanh Lam Nguyen
- Department of Atmospheric,
Oceanic and Space Sciences, University of Michigan, Ann Arbor, Michigan 48109-2143, United States
| | - John F. Stanton
- Department of Chemistry
and Biochemistry, The University of Texas, Austin, Texas 78712-0165, United States
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18
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Ulenikov O, Fomchenko A, Bekhtereva E, Gromova O, Leroy C. On the ‘expanded local mode’ approach applied to the methane molecule: isotopic substitution CH2D2←CH4. Mol Phys 2011. [DOI: 10.1080/00268976.2011.611479] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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19
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Albert S, Albert KK, Lerch P, Quack M. Synchrotron-based highest resolution Fourier transform infrared spectroscopy of naphthalene (C10H8) and indole (C8H7N) and its application to astrophysical problems. Faraday Discuss 2011; 150:71-99; discussion 113-60. [DOI: 10.1039/c0fd00013b] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Ulenikov O, Bekhtereva E, Albert S, Bauerecker S, Hollenstein H, Quack M. High resolution infrared spectroscopy and global vibrational analysis for the CH3D and CHD3isotopomers of methane. Mol Phys 2010. [DOI: 10.1080/00268976.2010.483131] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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21
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Nguyen TL, Barker JR. Sums and Densities of Fully Coupled Anharmonic Vibrational States: A Comparison of Three Practical Methods. J Phys Chem A 2010; 114:3718-30. [DOI: 10.1021/jp100132s] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Thanh Lam Nguyen
- Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, Michigan 48109-2143
| | - John R. Barker
- Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, Michigan 48109-2143
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