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Jóźwiak H, Thibault F, Cybulski H, Wcisło P. Ab initio investigation of the CO-N 2 quantum scattering: The collisional perturbation of the pure rotational R(0) line in CO. J Chem Phys 2021; 154:054314. [PMID: 33557563 DOI: 10.1063/5.0040438] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We report fully quantum calculations of the collisional perturbation of a molecular line for a system that is relevant for Earth's atmosphere. We consider the N2-perturbed pure rotational R(0) line in CO. The results agree well with the available experimental data. This work constitutes a significant step toward populating the spectroscopic databases with ab initio collisional line-shape parameters for atmosphere-relevant systems. The calculations were performed using three different recently reported potential energy surfaces (PESs). We conclude that all three PESs lead to practically the same values of the pressure broadening coefficients.
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Affiliation(s)
- Hubert Jóźwiak
- Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University in Toruń, Grudziadzka 5, 87-100 Toruń, Poland
| | - Franck Thibault
- Univ. Rennes, CNRS, IPR (Institut de Physique de Rennes)-UMR 6251, Rennes F-35000, France
| | - Hubert Cybulski
- Institute of Physics, Kazimierz Wielki University, ul. Powstańców Wielkopolskich 2, 85-090 Bydgoszcz, Poland
| | - Piotr Wcisło
- Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University in Toruń, Grudziadzka 5, 87-100 Toruń, Poland
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Hsu PS, Stauffer HU, Jiang N, Gord JR, Roy S. Direct measurements of collisional Raman line broadening in the S-branch transitions of CO perturbed by CO, N 2, and CO 2. APPLIED OPTICS 2019; 58:C1-C6. [PMID: 31045024 DOI: 10.1364/ao.58.0000c1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 11/27/2018] [Indexed: 06/09/2023]
Abstract
We report direct measurement of collisional line-broadening coefficients associated with rotational Raman transitions of carbon monoxide (CO), obtained using time-resolved picosecond rotational coherent anti-Stokes Raman scattering spectroscopy. The dependencies of the CO self-broadening coefficients on rotational quantum number, J, and temperature are described for the J=3-16 lines of S-branch (ΔJ=+2) transitions for T=295-600 K at atmospheric pressure. Further, we report collisional linewidths of CO and collision partners N2 and CO2. The obtained S-branch linewidths of self-broadened CO agree well with previously reported frequency-domain experimental spectroscopy results, whereas the mixture-linewidth broadening coefficients differ from reported theoretical results by up to 80%.
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Yang B, Balakrishnan N, Zhang P, Wang X, Bowman JM, Forrey RC, Stancil PC. Full-dimensional quantum dynamics of CO in collision with H2. J Chem Phys 2016; 145:034308. [DOI: 10.1063/1.4958951] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Benhui Yang
- Department of Physics and Astronomy and the Center for Simulational Physics, The University of Georgia, Athens, Georgia 30602, USA
| | - N. Balakrishnan
- Department of Chemistry, University of Nevada, Las Vegas, Nevada 89154, USA
| | - P. Zhang
- Department of Chemistry, Duke University, Durham, North Carolina 27708, USA
| | - X. Wang
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA
| | - J. M. Bowman
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA
| | - R. C. Forrey
- Department of Physics, Penn State University, Berks Campus, Reading, Pennsylvania 19610, USA
| | - P. C. Stancil
- Department of Physics and Astronomy and the Center for Simulational Physics, The University of Georgia, Athens, Georgia 30602, USA
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Yang B, Stancil PC, Balakrishnan N, Forrey RC. Quenching of rotationally excited CO by collisions with H2. J Chem Phys 2006; 124:104304. [PMID: 16542076 DOI: 10.1063/1.2178299] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Quantum close-coupling and coupled-states approximation scattering calculations of rotational energy transfer in CO due to collisions with H2 are presented for collision energies between 10(-6) and 15,000 cm(-1) using the H2-CO interaction potentials of Jankowski and Szalewicz [J. Chem. Phys. 123, 104301 (2005); 108, 3554 (1998)]. State-to-state cross sections and rate coefficients are reported for the quenching of CO initially in rotational levels j2 = 1-3 by collisions with both para- and ortho-H2. Comparison with the available theoretical and experimental results shows good agreement, but some discrepancies with previous calculations using the earlier potential remain. Interestingly, elastic and inelastic cross sections for the quenching of CO (j2 = 1) by para-H2 reveal significant differences at low collision energies. The differences in the well depths of the van der Waals interactions of the two potential surfaces lead to different resonance structures in the cross sections. In particular, the presence of a near-zero-energy resonance for the earlier potential which has a deeper van der Waals well yields elastic and inelastic cross sections that are about a factor of 5 larger than that for the newer potential at collision energies lower than 10(-3) cm(-1).
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Affiliation(s)
- Benhui Yang
- Department of Physics and Astronomy, The University of Georgia, Athens, Georgia 30602-2451, USA.
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Bacsik Z, Gyivicsán A, Horváth K, Mink J. Determination of Carbon Monoxide Concentration and Total Pressure in Gas Cavities in the Silica Glass Body of Light Bulbs by FT-IR Spectrometry. Anal Chem 2006; 78:2382-7. [PMID: 16579624 DOI: 10.1021/ac051843h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Fourier transform infrared (FT-IR) spectroscopy has been adapted to control the quality of light bulbs made from silica glass. Such light bulbs contain a molybdenum accessory which, if contaminated with carbon, during the melting procedure of bulb fabrication, can cause the production of carbon monoxide. This CO can be trapped in small gas cavities in the silica glass body of the bulb. A method has been developed for the detection of CO and the total pressure within these gas cavities by traditional FT-IR spectrometry using a spectral resolution of 0.5 cm(-1). The concentration of CO was determined by using a classical least-squares (CLS) method, and the accuracy of concentration determination is reported for the case with sample and reference spectra recorded at different pressures. The total pressure in the cavities was established by two different methods: either by CLS fitting of reference spectra to sample spectra or fitting a Voigt line shape function to the spectral lines within the CO fundamental stretching band. In the latter method, the width of the lines was determined and pressure-broadening coefficients are given and compared with high-resolution data from the literature. According to the measurements, 0.55-0.80 atm total pressure and 0.8-4.0% (v/v) CO was determined in the gas cavities. This method can also be applied to determine the total pressure in similar enclosed spaces in which an appropriate indicator gas component exists.
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Affiliation(s)
- Zoltán Bacsik
- Chemical Research Center of the Hungarian Academy of Sciences, Pusztaszeri út 59-67, H-1025 Budapest, Hungary
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Mantz A, Malathy Devi V, Chris Benner D, Smith M, Predoi-Cross A, Dulick M. A multispectrum analysis of widths and shifts in the 2010–2260cm−1 region of 12C16O broadened by Helium at temperatures between 80 and 297K. J Mol Struct 2005. [DOI: 10.1016/j.molstruc.2004.11.094] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Valentin A, Henry A, Claveau C, Hurtmans D, Mantz * AW. Line profile study down to 80 K of R(7) in the13CO (1–0) band perturbed by Ar and13CO collisional cooling with He at 6.9 K. Mol Phys 2004. [DOI: 10.1080/00268970412331287007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Luo C, Wehr R, Drummond JR, May AD, Thibault F, Boissoles J, Launay JM, Boulet C, Bouanich JP, Hartmann JM. Shifting and broadening in the fundamental band of CO highly diluted in He and Ar: A comparison with theory. J Chem Phys 2001. [DOI: 10.1063/1.1383049] [Citation(s) in RCA: 54] [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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Mengel M, Flatin DC, De Lucia FC. Theoretical and experimental investigation of pressure broadening and line shift of carbon monoxide in collision with hydrogen between 8 and 600 K. J Chem Phys 2000. [DOI: 10.1063/1.480956] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Antonova S, Tsakotellis AP, Lin A, McBane GC. State-to-state rotational excitation of CO by H2 near 1000 cm−1 collision energy. J Chem Phys 2000. [DOI: 10.1063/1.480547] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Predoi-Cross A, Luo C, Sinclair PM, Drummond JR, May AD. Line Broadening and the Temperature Exponent of the Fundamental Band in CO-N(2) Mixtures. JOURNAL OF MOLECULAR SPECTROSCOPY 1999; 198:291-303. [PMID: 10547312 DOI: 10.1006/jmsp.1999.7940] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We have measured the width, Gamma, of many P and R lines of the fundamental vibration-rotation band of CO perturbed by N(2) at 348 K and pressures of about 50 kPa. We have also extended the measurements made earlier at room temperature. The broadening coefficients, gamma = Gamma/pressure, were obtained with an accuracy of 0.3% by fitting with a Lorentzian, a Voigt, and an empirical lineshape model that blends together a hard-collision model and a speed-dependent Lorentzian profile. In all cases the results are represented by an empirical exponential power law polynomial in the line number, m. Combining the data at the two temperatures yields the exponent n in the scaling law gamma(T(1))/gamma(T(2)) = (T(1)/T(2))(-n), as a function of line number. The broadening coefficients and the variation of the temperature exponent line number are compared with theory. In addition, the line-mixing parameters are also reported at 348 and 301 K. Copyright 1999 Academic Press.
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Affiliation(s)
- A Predoi-Cross
- Department of Physics, University of Toronto, M5S 1A7, Canada
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Luo C, Berman R, Predoi-Cross A, Drummond JR, May AD. Lineshifts in the Fundamental Band of CO: Confirmation of Experimental Results for N(2) and Comparison with Theory. JOURNAL OF MOLECULAR SPECTROSCOPY 1999; 196:290-295. [PMID: 10409459 DOI: 10.1006/jmsp.1999.7866] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We have used a three-channel version of a tunable difference frequency laser spectrometer to measure the collisionally induced lineshifts at room temperature for 26 lines of the fundamental band of CO perturbed by nitrogen. Each lineshift was obtained directly by comparing the line center positions of two simultaneous recordings, one for a pressure-shifted line, and the other for the same line in pure CO line at very low pressure. The experimental results are found to be in complete agreement with earlier measurements and confirm that shifts as small as 3 MHz may be measured in such a system. Our results are compared with theoretical calculations. The part of the shifting coefficient antisymmetric with respect to a change in sign of the line number m, is in disagreement with the calculations. Copyright 1999 Academic Press.
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Affiliation(s)
- C Luo
- Department of Physics, University of Toronto, Toronto, M5S 1A7, Canada
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