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Microwave and Submillimeter-Wave Measurements of HD12C16O in the ν4, ν5, and ν6 Bands: Evidence of Vibrational Induced Rotational Axis Switching (“VIRAS”)

✍ Scribed by A Perrin; J.-M Flaud; L Margulès; J Demaison; H Mäder; S Wörmke

Publisher: Elsevier Science
Year: 2002
Tongue: English
Weight: 373 KB
Volume: 216
Category: Article
ISSN: 0022-2852
DOI: 10.1006/jmsp.2002.8542

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✦ Synopsis

The rotational spectrum of HDCO in the 4 1 , 5 1 , and 6 1 excited vibrational states has been investigated in Lille and Kiel using a sample enriched in deuterium. In Lille, the measurements were performed in the millimeter region (160-600 GHz). The spectra in Kiel were recorded using Fourier transform microwave spectrometers in the regions around 8-18 and 18-26 GHz, employing a rectangular waveguide of length 12 m and a circular waveguide of length 36 m, respectively. These results were combined with the 4 1 , 5 1 , and 6 1 infrared energy levels which were obtained from a previous analysis of FTS spectra of the ν 4 (CHD bend), ν 5 (CHD rocking), and ν 6 bands (out of plane bend) recorded in the 10-µm region at Giessen (A.

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Evidence of Vibrational-Induced Rotational Axis Switching for HD12C16O: New High-Resolution Analysis of the ν5 and ν6 Bands and First Analysis of the ν4 Band (10-μm Region)

✍ A. Perrin; J.-M. Flaud; M. Smirnov; M. Lock 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 274 KB

Using new high-resolution Fourier transform spectra recorded in Giessen in the 8 -12 m region, a more extended analysis of the 5 and 6 bands and the first high-resolution study of the 4 band of HDCO were performed. As pointed out previously [M.