Rovibrational spectra of Ar–SO2 and (SO2)2 van der Waals complexes in the v1 region of SO2

Li, Xiang; Pu, Yuanyuan; Liu, Zhuang; Sun, Yinxin; Duan, Chuanxi

doi:10.1016/j.jms.2021.111559

Journal of Molecular Spectroscopy

2022

DOI: 10.1016/j.jms.2021.111559

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Rovibrational spectra of Ar–SO2 and (SO2)2 van der Waals complexes in the v1 region of SO2

Xiang Li

Yuanyuan Pu

Zhuang Liu

et al.

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Cited by 6 publications

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“…The newly measured infrared spectra of the two other C–O stretching vibrations of F(FF) are shown in Figure b,c. As the experimental setup has been described in detail in previous work, , we limit the following description to a brief summary. An external-cavity quantum cascade laser [EC-QCL; Daylight Solutions, MHF-41090] with a nominated tuning range of 1090–1190 cm –1 was used as the tunable infrared radiation source.…”

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confidence: 99%

Mid-infrared Laser Spectroscopy of Jet-Cooled Formic Acid Trimer: Mode-Dependent Line Broadening in the C–O Stretching Region

Nejad,

Li,

Zhu

et al. 2023

J. Phys. Chem. Lett.

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Building on recent progress in the vibrational spectroscopy of the formic acid trimer, we present the first high-resolution measurements of the jet-cooled laser absorption spectrum of (HCOOH) 3 . The spectra of the lowest-and highest-frequency C−O stretching fundamentals are analyzed whereas the third band is not observed, complicated by monomer and dimer absorptions at 1219 cm −1 (8.2 μm). Vibration−rotation parameters are obtained for the band at 1172.31512(68) cm −1 whereas the C−O stretch at 1246.33(5) cm −1 exhibits a significantly larger breadth, allowing only resolution of the coarse PQR structure. Vibrational predissociation can be ruled out, and intramolecular vibrational redistribution mechanisms are discussed, particularly coupling to the concerted proton exchange within the cyclic dimer subunit. Ultimately, the question remains open. The prospects of high-resolution measurements of other trimer bands or isotope substitution experiments, which might assist in revealing the mode-specificity of the underlying broadening mechanisms, are discussed.

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confidence: 99%

Mid-infrared Laser Spectroscopy of Jet-Cooled Formic Acid Trimer: Mode-Dependent Line Broadening in the C–O Stretching Region

Nejad,

Li,

Zhu

et al. 2023

J. Phys. Chem. Lett.

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A full-dimensional ab initio potential energy surface and rovibrational spectra for the Ar–SO2 complex

2022

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UV irradiation and infrared observation of sulfur dioxide clusters and solids at cryogenic temperature

Ito

Koga

Negishi

et al. 2023

Chemical Physics Letters

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Rovibrational spectra of Ar–SO2 and (SO2)2 van der Waals complexes in the v1 region of SO2

Cited by 6 publications

References 56 publications

Mid-infrared Laser Spectroscopy of Jet-Cooled Formic Acid Trimer: Mode-Dependent Line Broadening in the C–O Stretching Region

Mid-infrared Laser Spectroscopy of Jet-Cooled Formic Acid Trimer: Mode-Dependent Line Broadening in the C–O Stretching Region

A full-dimensional ab initio potential energy surface and rovibrational spectra for the Ar–SO2 complex

UV irradiation and infrared observation of sulfur dioxide clusters and solids at cryogenic temperature

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