The weakly-bound CO2–acetylene complex: Fundamental and torsional combination band in the CO2 ν3 region

Lauzin, Clément; Oliaee, Norooz J.N.; Rezaei, M.; Moazzen‐Ahmadi, N.

doi:10.1016/j.jms.2011.01.008

Cited by 12 publications

(8 citation statements)

References 28 publications

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“…This provides further evidence that when bonded to another monomer, CO 2 and N 2 O show quantitative similarities. Such similarities have been previously pointed out in connection with C 2 H 2 . − …”

Section: Discussionsupporting

confidence: 75%

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New Infrared Bands of the C-Bonded Isomer of OC–N₂O and Determination of Two Intermolecular Frequencies

et al. 2017

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Three combination bands involving intermolecular modes of the most stable isomer of the OC-NO van der Waals complex have been observed, two in the carbon monoxide CO stretch region (∼2150 cm) and one in the ν asymmetric stretch region of NO (∼2223 cm). Vibrational assignment is achieved by comparison with data recently published ( Barclay , A. ; et al. Chem. Phys. Lett. 2016 , 62 , 651 ), concerning OC-CO. Two of these bands involve the same intermolecular mode, one with the CO stretch and the other with the ν asymmetric stretch of NO. The values of intermolecular frequency deduced from these two bands agree very well, showing no significant dependence on intramolecular vibrational excitation.

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Section: Discussionsupporting

confidence: 75%

“…Therefore, mid-infrared combination bands can indeed be used to determine reliable intermolecular frequencies. Other examples where this is the case are N 2 O–CO 2 , N 2 O–C 2 H 2 , , C 2 H 2 –CO 2 , ,, CO 2 –C 2 D 2 , and CO 2 –OCS Table summarizes all the results obtained to date.…”

Section: Discussionmentioning

confidence: 88%

New Infrared Bands of the C-Bonded Isomer of OC–N₂O and Determination of Two Intermolecular Frequencies

et al. 2017

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“…It corresponds to an intermolecular vibrational frequency of 44.56 and 44.31 cm −1 for C 2 H 2 -N 2 O and C 2 H 2 -CO 2 , respectively, i.e. almost identical to those reported in lower vibrational states of the two complexes [242,243]. The vibrational predissociation lifetime was determined to be 1.6 ns in C 2 H 2 -N 2 O from spectra corresponding to 20 K rotational temperature.…”

Section: H 2 O/hdo/d 2 O-rgsupporting

confidence: 73%

Overtone spectroscopy of molecular complexes containing small polyatomic molecules

Herman

Földes

Didriche

et al. 2016

International Reviews in Physical Chemistry

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The literature on the high-resolution spectroscopic investigation of molecular complexes containing small polyatomic species excited in their vibrational overtones is reviewed. They turn out to be complexes containing acetylene, ammonia and water, mainly excited in their 2CH, 2NH and 2OH vibrations, respectively. The majority of results published on these systems was obtained using an instrumental set-up based on cw-cavity ring-down spectroscopy, built in the 'Laboratoire de Chimie quantique et Photophysique' at the 'Université libre de Bruxelles' (CQP/ULB) and named FANTASIO+, which is described. It allowed retrieving upper state vibrational predissociation lifetimes, which are highlighted together with more results. The sequence of experiments at CQP/ULB prior and along the line of those supporting the investigation of molecular complexes is briefly illustrated.

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“…16,17 This work shows that when bonded to CO, this type of similarity continues to exist even for the less-bonded isomers. This is partly explained by the difference in the van der Waals radii for carbon and oxygen.…”

Section: Discussionmentioning

confidence: 67%

Detection of a higher energy isomer of the CO–N₂O van der Waals complex and determination of two of its intermolecular frequencies

Barclay

Lauzin

Sheybani-Deloui

et al. 2017

Phys. Chem. Chem. Phys.

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Infrared spectra in the carbon monoxide CO stretch region (∼2150 cm) and in the ν asymmetric stretch region of NO (∼2223 cm) are assigned to the previously unobserved O-bonded form of the CO-NO dimer ("isomer 2"). This van der Waals complex has a planar skewed T-shaped structure like that of the previously observed C-bonded form ("isomer 1"), but with the CO rotated by 180°. The effective intermolecular distance between the centers of mass is 3.51 Å for isomer 2 as compared to 3.88 Å for isomer 1. In addition to the fundamental band, two combination bands are observed for isomer 2, yielding values for two intermolecular vibrational modes: 14.502(5) cm for the coupled disrotatory motion or the uncoupled CO rock and 21.219(5) cm for the out-of-plane rock. We show that the published ab initio study on this system is inadequate in predicting the intermolecular frequencies for isomer 2 of CO-NO.

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The weakly-bound CO2–acetylene complex: Fundamental and torsional combination band in the CO2 ν3 region

Cited by 12 publications

References 28 publications

New Infrared Bands of the C-Bonded Isomer of OC–N₂O and Determination of Two Intermolecular Frequencies

New Infrared Bands of the C-Bonded Isomer of OC–N₂O and Determination of Two Intermolecular Frequencies

Overtone spectroscopy of molecular complexes containing small polyatomic molecules

Detection of a higher energy isomer of the CO–N₂O van der Waals complex and determination of two of its intermolecular frequencies

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The weakly-bound CO2–acetylene complex: Fundamental and torsional combination band in the CO2 ν3 region

Cited by 12 publications

References 28 publications

New Infrared Bands of the C-Bonded Isomer of OC–N2O and Determination of Two Intermolecular Frequencies

New Infrared Bands of the C-Bonded Isomer of OC–N2O and Determination of Two Intermolecular Frequencies

Overtone spectroscopy of molecular complexes containing small polyatomic molecules

Detection of a higher energy isomer of the CO–N2O van der Waals complex and determination of two of its intermolecular frequencies

Contact Info

Product

Resources

About

New Infrared Bands of the C-Bonded Isomer of OC–N₂O and Determination of Two Intermolecular Frequencies

New Infrared Bands of the C-Bonded Isomer of OC–N₂O and Determination of Two Intermolecular Frequencies

Detection of a higher energy isomer of the CO–N₂O van der Waals complex and determination of two of its intermolecular frequencies