High-Resolution Fourier Transform Spectra of AsH3: The Vibrational Bands 2ν2(A1), ν2 + ν4(E), ν1(A1), and ν3(E)

✍ Scribed by O.N. Ulenikov; A.E. Cheglokov; G.A. Shevchenko; M. Winnewisser; B.P. Winnewisser

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 721 KB
• Volume: 157
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.1993.1012

✦ Synopsis

High-resolution Fourier transform spectra of arsine, (\mathrm{AsH}{3}), have been recorded between 1750 and (2300 \mathrm{~cm}^{-1}) at a resolution of (0.0023 \mathrm{~cm}^{-1}). More than 7000 transitions (from a total number of 10600 ) including nearly 3000 "forbidden" (or "perturbation allowed") have been assigned to the (2 \nu{2}\left(A_{1}\right), \nu_{2}+v_{4}(E), \nu_{1}\left(A_{1}\right)), and (\nu_{3}(E)) vibrational bands. The (A_{1}-A_{2}) splittings of the levels with quantum number (K=1,2,4,5), and 7 for perpendicular bands and (K=3), and 6 for parallel bands have been observed. The rotational, centrifugal distortion, and Coriolis interaction parameters were obtained by fitting to experimental energy levels. The parameters obtained reproduce the initial data with residuals close to the accuracy of the experimental measurements. (c) 1993 Academic Press. Inc.