High Resolution Infrared Study of the Coriolis Coupled ν3 and ν6 Fundamentals of D370GeH Near 600 cm−1

✍ Scribed by D. Papousek; H. Burger

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 494 KB
• Volume: 169
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.1995.1039

✦ Synopsis

The high-resolution spectra of the vibration-rotational bands (\nu_{3}) and (\nu_{6}) of gaseous (\mathrm{D}{3}{ }^{70} \mathrm{GeH}) have been measured in the region (395-890 \mathrm{~cm}^{-1}) with a resolution of (0.0035 \mathrm{~cm}^{-1}). A variational approach has been applied to the analysis of both bands, which are strongly perturbed, especially by (x, y) Coriolis interaction and by " (2,-1) " l-type coupling. A standard deviation of (2.64 \times 10^{-4}) (\mathrm{cm}^{-1}) has been obtained in the fit of 2184 lines with 34 rotational and vibration-rotational parameters of the (v{3}=1) and (v_{6}=1) vibrational states. A strong intensity perturbation of lines corresponding to the (\Delta K=+1) transitions in the (\nu_{6}) band is discussed in terms of the mixing of wavefunctions corresponding to the (+l) and (-l) states of the (v_{6}=1) level. 1995 Academic Press, Inc.