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New High-Resolution Analysis of the ν7 and ν9 Fundamental Bands of trans-Formic Acid by Fourier Transform Infrared and Millimeter-Wave Spectroscopy

✍ Scribed by A Perrin; J.-M Flaud; B Bakri; J Demaison; O Baskakov; S.V Sirota; M Herman; J.Vander Auwera

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
181 KB
Volume
216
Category
Article
ISSN
0022-2852

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✦ Synopsis

The high-resolution (0.002 cm -1 ) spectrum of the ν 7 (OCO scissor mode) and ν 9 (COH torsion mode) fundamental bands of trans-formic acid (HCOOH) at 15.8 µm was recorded by Fourier transform infrared spectroscopy. In addition, millimeter-wave transitions within the 7 1 and 9 1 vibrational states were measured in the spectral range 340-600 GHz. Using these new experimental data, an extensive analysis of the ν 7 and ν 9 bands was performed. The model we have used accounts for the strong A-and B-type Coriolis interactions which couple the 7 1 and 9 1 vibrational states and which were already pointed out in the literature [

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