The infrared spectrum of CHCIFz (freon 22, chlorodifluoromethane) in the range of the CH stretching fundamental v, and the two CF stretching fundamentals vj and vs has been measured in a supersonic free jet expansion with rotational temperatures of about 50 K and resolutions up to 0.004 cm-'. The fi
Use of a free-expansion jet in ultra-high-resolution inverse raman spectroscopy
β Scribed by James J. Valentini; Peter Esherick; Adelbert Owyoung
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 247 KB
- Volume
- 75
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
RotatIonally resolved, ultra-tigh-resolution mverse Raman spectra of CH4 have been obtamed m a free-expansion Jet. Usmg relatively mdd expansion conditions a pure methane Jet has been cooled to a rotational temperature of 13 K The hmltmg rotatlonal state populations observed, however, are not Boltzmann because of nuclear spm effects
π SIMILAR VOLUMES
High-resolution Fourier transform spectra of the laser-induced fluorescence of copper dichloride produced in a free-jet expansion are presented. The supersonic molecular beam produces rotational cooling and a nearly collisionfree environment. Dispersed fluorescence spectra are found to be free of th
The A2 u ( 3 P) state of Br 2 is observed in free-jet expansions of UV-photolyzed BBr 3 /Ar mixtures and of electrically discharged Br 2 /Ar mixtures. Laser excitation spectra are recorded for the D2 g ( 3 P 2 ) R A transition, providing the first information about Β£ Γ 0 in the A state. Thirty-one Β£
The A 1 u ( 3 P) state of Br 2 is observed in free-jet expansions of UV-photolyzed BBr 3 /Ar mixtures and electrically discharged Br 2 /Ar mixtures. Laser excitation spectra are recorded for the b 1 g ( 3 P 2 ) R A transition, providing the first high-resolution data for Β£ Γ 0 in the A state. Thirte
The \(A^{\prime} 2\left({ }^{3} \mathrm{II}\right)\) state of \(1 \mathrm{Br}\) is observed in a free-jet expansion of \(1 \mathrm{Br}\) in \(\mathrm{Ar}\), following photolysis with ArF laser irradiation. Laser excitation spectra are recorded for the \(D^{\prime} 2\left({ }^{3} P_{2}\right) \leftar
We have recorded high-resolution absorption spectra of 12 CH 4 cooled in a jet, using a Fourier transform interferometer. The expected nuclear spin symmetry conservation in the jet is exhibited from data recorded around 3000 cm 01 showing the relative intensity of the lines starting from the JΠ Γ 2