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High-Resolution Infrared Study of the Fundamental Bands of Monoiodoacetylene

✍ Scribed by A.M. Tolonen; S. Alanko; M. Koivusaari; R. Paso; V.M. Horneman

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 326 KB
Volume: 165
Category: Article
ISSN: 0022-2852
DOI: 10.1006/jmsp.1994.1126

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✦ Synopsis

The infrared spectrum of monoiodoacetylene has been recorded in certain selected wavenumber regions between 200 and (3500 \mathrm{~cm}^{-1}) with a Fourier transform spectrometer at resolutions varying from 0.0025 to (0.0046 \mathrm{~cm}^{-1}). All five fundamental bands of the (\mathrm{HCCI}) molecule have been observed and analyzed. The rotational constants for the ground state, (B_{0}=0.105942095(51), D_{0}=) (1.73390(86) \times 10^{-8}), and (H_{0}=-2.27(42) \times 10^{-15} \mathrm{~cm}^{-1}), have been determined by fitting 448 combination differences calculated from the (P) and (R) transitions in the fundamentals. From the analyses of the upper states the molecular constants for all the fundamental vibrational levels have been obtained. (c) 1994 Academic Press. Inc.

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