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Barclay AJ, McKellar ARW, Moazzen-Ahmadi N. Spectra of CO 2-Rg 2 and CO 2-Rg-He trimers (Rg = Ne, Ar, Kr, and Xe): Intermolecular CO 2 rock, vibrational shifts and three-body effects. J Chem Phys 2022; 157:204303. [DOI: 10.1063/5.0128133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Weakly bound CO2-Rg2 trimers are studied by high-resolution (0.002 cm−1) infrared spectroscopy in the region of the CO2 ν3 fundamental band (≈2350 cm−1), using a tunable optical parametric oscillator to probe a pulsed supersonic slit jet expansion with an effective rotational temperature of about 2 K. CO2–Ar2 spectra have been reported previously, but they are extended here to include Rg = Ne, Kr, and Xe as well as new combination and hot bands. For Kr and Xe, a unified scaled parameter scheme is used to account for the many possible isotopic species. Vibrational shifts of CO2-Rg2 trimers are compared to those of CO2-Rg dimers, and in all cases the trimer shifts are slightly more positive (blue-shifted) than expected on the basis of linear extrapolation from the dimer. Combination bands directly measure an intermolecular vibrational mode (the CO2 rock) and give values of about 32.2, 33.8, and 34.7 cm−1 for CO2–Ar2, –Kr2, and –Xe2. Structural parameters derived for CO2-Rg2 trimers are compared with those of CO2-Rg and Rg2 dimers. Spectra of the mixed trimers CO2-Rg-He are also reported.
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Affiliation(s)
- A. J. Barclay
- Department of Physics and Astronomy, University of Calgary, 2500 University Drive North West, Calgary, Alberta T2N 1N4, Canada
| | - A. R. W. McKellar
- National Research Council of Canada, Ottawa, Ontario K1A 0R6, Canada
| | - N. Moazzen-Ahmadi
- Department of Physics and Astronomy, University of Calgary, 2500 University Drive North West, Calgary, Alberta T2N 1N4, Canada
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Barclay A, McKellar A, Moazzen-Ahmadi N. New infrared spectra of CO2 – Ne: Fundamental for CO2 –22Ne isotopologue, intermolecular bend, and symmetry breaking of the intramolecular CO2 bend. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138874] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Wang H, Zhao A, Yang D, Zheng R. Theoretical and experimental studies of the isotope effects for He-CO 2 and Ne-CO 2 complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 250:119391. [PMID: 33422872 DOI: 10.1016/j.saa.2020.119391] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 12/12/2020] [Accepted: 12/24/2020] [Indexed: 06/12/2023]
Abstract
In this work, we have studied the isotope effects for the He-CO2 and Ne-CO2 complexes by means of theoretical calculations and experimental measurements, which were carried out using a distributed quantum cascade laser to probe a pulsed supersonic jet expansion. Firstly, infrared spectra have been recorded for the He/Ne-12C18O2 complexes. Spectroscopic parameters including band origin ν0, rotational constants A, B, C, and centrifugal distortion constants ΔJK were obtained by fitting a Watson A-reduced Hamiltonian with 13 assigned rovibrational transitions for He-12C18O2. For Ne-12C18O2, the observed spectrum produces a set of spectroscopic parameters including the band origin, rotational constants and all the quartic centrifugal distortion constants with more than 100 rovibrational transitions (40 new transitions). Secondly, we have calculated the rovibrational energy levels, vibrational shifts, and rotational constants for the He/Ne-CO2 complexes based on potential energy surfaces (PESs) and bound state calculations for ground and vibrationally excited states. The obtained results show that the spectroscopic characteristics (vibrational shifts and rotational constants) for Ne-CO2 are analogous to those of Ar-CO2, while those for He-CO2 show some differences especially for the rotational constants. Finally, according to the available experimental data and our theoretical calculations, infrared spectra were predicted for six isotopologues with C2v symmetry of Ne-CO2 complex.
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Affiliation(s)
- Hongli Wang
- School of Physics & Electronics, North China University of Water Resources and Electric Power, Zhengzhou 450011, People's Republic of China
| | - Aiqing Zhao
- School of Physics & Electronics, North China University of Water Resources and Electric Power, Zhengzhou 450011, People's Republic of China
| | - Dapeng Yang
- School of Physics & Electronics, North China University of Water Resources and Electric Power, Zhengzhou 450011, People's Republic of China
| | - Rui Zheng
- School of Physics & Electronics, North China University of Water Resources and Electric Power, Zhengzhou 450011, People's Republic of China.
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Qin M, Xiao X, Zhu H. Theoretical calculation of a full-dimensional ab initio potential energy surface and prediction of infrared spectra for Xe-CS 2. RSC Adv 2019; 9:20925-20930. [PMID: 35515540 PMCID: PMC9066011 DOI: 10.1039/c9ra03782a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 07/22/2019] [Accepted: 06/17/2019] [Indexed: 11/22/2022] Open
Abstract
An effective four-dimensional (4D) ab initio potential energy surface (PES) for Xe-CS2 which explicitly involves the intramolecular Q 1 symmetric stretching and Q 3 antisymmetric stretching vibrational coordinates of CS2 is constructed. The computations are carried out employing single- and double-excitation coupled-cluster theory with a non-iterative perturbation treatment of triple excitations [CCSD(T)] method with a large basis set. Two vibrationally averaged potentials at the ground and ν 1 + ν 3 (ν 1 = 1, ν 3 = 1) excited states are obtained by integrating the 4D potentials over the Q 1 and Q 3 coordinates. The potentials have a T-shaped global minimum and two equivalent linear local minima. The radial discrete variable representation/angular finite basis representation and the Lanczos algorithm are employed to calculate the rovibrational energy levels for Xe-CS2. The infrared band origin shift associated with the fundamental band of CS2 is predicted, which is red-shifted by -1.996 cm-1 in the ν 1 + ν 3 region. In addition, we further predict the spectroscopic parameters for the ground and the ν 1 + ν 3 excited states of Xe-CS2. Compared with the previous Rg-CS2 (Rg = He, Ne, Ar, Kr) complexes, we found that the complexes of the rare gas atoms with CS2 display obvious regularities.
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Affiliation(s)
- Miao Qin
- School of Architectural and Environmental Engineering, Chengdu Technological University Chengdu 611730 China
- Center of Big Data for Smart Environmental Protection, Chengdu Technological University Chengdu 611730 China
| | - Xiuchan Xiao
- School of Architectural and Environmental Engineering, Chengdu Technological University Chengdu 611730 China
- Center of Big Data for Smart Environmental Protection, Chengdu Technological University Chengdu 611730 China
| | - Hua Zhu
- School of Chemistry, Sichuan University Chengdu 610064 China
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Qin M, Shang J, Hong Q, Zhu H. A new four-dimensional ab initio potential energy surface and predicted infrared spectra for the Ne–CS2 complex. Mol Phys 2016. [DOI: 10.1080/00268976.2016.1263764] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Miao Qin
- School of Chemistry, Sichuan University, Chengdu, 610064, China
- State Key Laboratory of Biotherapy, Sichuan University, Chengdu, 610064, China
| | - Jing Shang
- School of Chemistry, Sichuan University, Chengdu, 610064, China
- State Key Laboratory of Biotherapy, Sichuan University, Chengdu, 610064, China
| | - Qi Hong
- School of Chemistry, Sichuan University, Chengdu, 610064, China
- State Key Laboratory of Biotherapy, Sichuan University, Chengdu, 610064, China
| | - Hua Zhu
- School of Chemistry, Sichuan University, Chengdu, 610064, China
- State Key Laboratory of Biotherapy, Sichuan University, Chengdu, 610064, China
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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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Shang J, Yuan T, Zhu H. A new four-dimensional potential energy surface of the Ar–CS2 complex: Dependence on the symmetric and antisymmetric stretching vibrations of CS2. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2016.02.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Shang J, Yuan T, Zhu H. A new four-dimensional ab initio potential energy surface and predicted infrared spectra for the He–CS2 complex. Theor Chem Acc 2015. [DOI: 10.1007/s00214-015-1755-y] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yuan T, Sun X, Hu Y, Zhu H. A new ab initio potential energy surface and infrared spectra for the Ar-CS₂ complex. J Chem Phys 2014; 141:104306. [PMID: 25217915 DOI: 10.1063/1.4894504] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We report a new three-dimensional potential energy surface for Ar-CS2 involving the Q3 normal mode for the υ3 antisymmetric stretching vibration of the CS2 molecule. The potential energies were calculated using the supermolecular method at the coupled-cluster singles and doubles level with noniterative inclusion of connected triples, using augmented correlation-consistent quadruple-zeta basis set plus midpoint bond functions. Two vibrationally averaged potentials with CS2 at both the ground (υ = 0) and the first excited (υ = 1)υ3 vibrational states were generated from the integration of the three-dimensional potential over the Q3 coordinate. Each potential was found to have a T-shaped global minimum and two equivalent linear local minima. The radial discrete variable representation /angular finite basis representation method and the Lanczos algorithm were applied to calculate the rovibrational energy levels. The calculated band origin shift of the complex (0.0622 cm(-1)) is very close to the observed one (0.0671 cm(-1)). The predicted infrared spectra and spectroscopic parameters based on the two averaged potentials are in excellent agreement with the available experimental data.
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Affiliation(s)
- Ting Yuan
- School of Chemistry, Sichuan University, Chengdu 610064, China and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610064, China
| | - Xueli Sun
- School of Chemistry, Sichuan University, Chengdu 610064, China and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610064, China
| | - Yi Hu
- School of Chemistry, Sichuan University, Chengdu 610064, China and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610064, China
| | - Hua Zhu
- School of Chemistry, Sichuan University, Chengdu 610064, China and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610064, China
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CHEN RONG, ZHU HUA. POTENTIAL ENERGY SURFACES AND MICROWAVE SPECTRA FOR 20Ne–13C16O2, 22Ne–12C16O2 and 22Ne–13C16O2 COMPLEXES. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2012. [DOI: 10.1142/s0219633612500782] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We report averaged potential energy surfaces for isotopic Ne–CO2 complexes (20 Ne –13 C 16 O 2, 22 Ne –12 C 16 O 2 and 22 Ne –13 C 16 O 2). According to the latest ab initio potential of 20 Ne –12 C 16 O 2 (Chen R, Jiao EQ, Zhu H, Xie DQ, J Chem Phys133:104302, 2010) including the Q3 normal mode for the υ3 antisymmetric stretching vibration of the CO2 molecule. We obtain the averaged potentials for 20 Ne –13 C 16 O 2, 22 Ne –12 C 16 O 2 and 22 Ne –13 C 16 O 2 by the integration of the three-dimensional potential over the Q3 coordinate. The averaged potential surfaces are found to have a T-shaped global minimum and two equivalent linear local minima. The radial DVR/angular FBR method and the Lanczos algorithm are applied to calculate the rovibrational energy levels. Comparison with the available observed values showed an overall excellent agreement for all spectroscopic parameters and the microwave spectra.
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Affiliation(s)
- RONG CHEN
- College of Chemistry, Chongqing Normal University, Chongqing 401331, P. R. China
| | - HUA ZHU
- School of Chemistry, Sichuan University, Chengdu 610064, P. R. China
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CHEN MIN, ZHU HUA. POTENTIAL ENERGY SURFACE, MICROWAVE AND INFRARED SPECTRA OF THE Xe–CO2 COMPLEX FROM AB INITIO CALCULATIONS. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2012. [DOI: 10.1142/s0219633612500332] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We present a new three-dimensional potential energy surface for Xe–CO2 including the Q3 normal mode for the υ3 antisymmetric stretching vibration of the CO2 molecule. Two vibrationally adiabatic potentials with CO2 in both the ground (υ3 = 0) and the first excited (υ3 = 1) states are generated by the integration of this potential over the Q3 coordinate. Each potential is found to have a T-shaped global minimum. The radial DVR/angular FBR method and the Lanczos algorithm are employed to calculate the rovibrational energy levels. The calculated band origin shifts, microwave and infrared spectra based on the two averaged potentials are in good agreement with the available experimental data.
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Affiliation(s)
- MIN CHEN
- School of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - HUA ZHU
- School of Chemistry, Sichuan University, Chengdu 610064, P. R. China
- State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610064, P. R. China
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Chen R, Zhu H, Xie D. Intermolecular potential energy surface, microwave and infrared spectra of the Kr–CO2 complex from ab initio calculations. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.06.067] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Chen R, Jiao E, Zhu H, Xie D. A new ab initio potential energy surface and microwave and infrared spectra for the Ne–CO2 complex. J Chem Phys 2010; 133:104302. [DOI: 10.1063/1.3454684] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abstract
Infrared spectra of three isotopic forms of the weakly bound CO(2)-He van der Waals complex have been studied in the region of the CO(2) nu(3) fundamental band around 2300 cm(-1), using a tunable diode laser to probe a pulsed supersonic expansion. The complex is a T-shaped near-oblate asymmetric rotor, and it is found that (18)O isotopic substitution is sufficient to interchange the a and b inertial axes. For the symmetric isotopes, such as the normal species and the (16)O(13)C(16)O and (18)O(13)C(18)O forms studied here, half of the normal rotational levels of the complex are missing due to the effects of (16)O (or (18)O) interchange symmetry. However, for asymmetrically substituted ones, such as (16)O(13)C(18)O, all rotational levels are present. Moreover, for the asymmetric isotope, both a- and b-type transitions were observed, so that the spectrum was much richer. The CO(2)-He system is of interest both as a benchmark for intermolecular potential energy surface calculations, and because CO(2) is a valuable probe molecule for helium cluster spectroscopy.
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Affiliation(s)
- A R W McKellar
- Steacie Institute for Molecular Sciences, National Research Council of Canada, Ottawa, Ontario K1A 0R6, Canada.
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Konno T, Fukuda SI, Ozaki Y. Infrared spectroscopy of Ne–12C18O2 and Xe–12C18O2: Change in the CO2 intramolecular potential by formation of rare gas–CO2 complexes. Chem Phys Lett 2006. [DOI: 10.1016/j.cplett.2006.02.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Negri F, Ancilotto F, Mistura G, Toigo F. Ab initiopotential energy surfaces of He-CO2 and Ne-CO2 van der Waals complexes. J Chem Phys 1999. [DOI: 10.1063/1.480021] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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