Rovibrationally resolved, continuous supersonic-jet, Fourier-transform, infrared absorption spectroscopy of weakly bound heterodimers: analysis of ν1 and ν2 of OCHCl

Meads, Roger F.; Hartz, Christopher L.; Lucchese, Robert R.; Bevan, J. W.

doi:10.1016/0009-2614(93)80173-m

Cited by 18 publications

(3 citation statements)

References 12 publications

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“…Small [129] and larger [130] roots and turbomolecular [131] pumping systems were also used over the years. The FTS-jet combination was first reported in the literature by Snavely [132] and then beautifully exploited by Quack [133][134][135], and their co-workers, before being practiced by more research groups including ours [129,[136][137][138][139][140][141][142]. In these works the technique was more systematically applied to investigate stronger fundamental bands than weaker overtone bands.…”

Section: Fts Based Overtone Spectramentioning

confidence: 96%

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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Section: Fts Based Overtone Spectramentioning

confidence: 96%

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 impact of a long slit expansion on the experimental sensitivity of a FTIR/free-jet combination was illustrated by Herman et al, who investigated the spectral region up to and even beyond the range of the first CH stretching overtone (6000 cm Ϫ1 ) (19 -22). Compared to pinhole jets, continuous supersonic slit jets present three interesting properties for molecular absorption spectroscopy: (i) a long absorption path of the IR light beam through the cold gas is available (various slit dimensions were reported in the FT-jet literature: 40 m ϫ 750 m (23), 5 m ϫ 3 mm (9), 10 m ϫ 10 mm (24), 50 m ϫ 38 mm (25), 40 m ϫ 160 mm (26)); (ii) due to the reduced divergence of a slit expansion, the three body collisions, which are the main formation mechanisms of dimers, are more frequent in a slit expansion than in a pinhole one; (iii) another consequence of the weak divergence of a slit expansion is that sub-Doppler resolution conditions can be obtained (24,27). It is then possible to exploit the full instrumental resolution of the FTIR.…”

Section: Introductionmentioning

confidence: 99%

Uniform Supersonic Expansion for FTIR Absorption Spectroscopy: The ν5 Band of (NO)2 at 26 K

Bénidar

Georges

Doucen

et al. 2000

Journal of Molecular Spectroscopy

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“…In addition, the dimer has the intramolecular HCl and CO stretching vibrations ν 1 and ν 2 . The molecular beam studies by Wang et al and F. Meads et al have provided the observation and assignment of the intramolecular bands ν 1 and ν 2 located at 2851.67 and 2155.50 cm -1 , respectively. The observed blue-shift of the ν 2 band relative to the fundamental band in the CO monomer of ca.…”

Section: Introductionmentioning

confidence: 99%

Observation and Rovibrational Analysis of the Intermolecular HCl Libration Band in OC−HCl. Modeling of the Intermolecular Potential Energy Surface

2004

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The high-resolution far-infrared spectrum of the intermolecular HCl libration band ν 4 1 of the OC-H 35 Cl heterodimer is recorded in the gas phase by means of Fourier transform IR spectroscopy in a static multipass absorption cell at 137 K using a synchrotron radiation source. This is the first direct observation of an intermolecular vibration band of the OC-HCl dimer in the gas phase. The rotational structure of the band has the typical appearance of a perpendicular band of a linear polyatomic molecule. The structure is analyzed to yield the band origin ν 0 ) 201.20464 (27) cm -1 together with values for the upper state rotational constant, the upper state quartic and sextic centrifugal distortion constants, and the l-type doubling constant. The determined values for the rotational constant and the centrifugal distortion constants are used to obtain a Morse potential for the stretching of the intermolecular distance. The results are compared to the results from quantum-chemical calculations.

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Rovibrationally resolved, continuous supersonic-jet, Fourier-transform, infrared absorption spectroscopy of weakly bound heterodimers: analysis of ν1 and ν2 of OCHCl

Cited by 18 publications

References 12 publications

Overtone spectroscopy of molecular complexes containing small polyatomic molecules

Overtone spectroscopy of molecular complexes containing small polyatomic molecules

Uniform Supersonic Expansion for FTIR Absorption Spectroscopy: The ν5 Band of (NO)2 at 26 K

Observation and Rovibrational Analysis of the Intermolecular HCl Libration Band in OC−HCl. Modeling of the Intermolecular Potential Energy Surface

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