The vibration-rotation spectrum of methyl isocyanide \(\left(\mathrm{CH}_{3} \mathrm{NC}\right)\) has been recorded with the aid of a high-resolution Fourier transform spectrometer in the region \(1370151560 \mathrm{~cm}^{-1}\) containing the perpendicular band of the fundamental vibration \(v_{6}\)
Analysis of the Hot Bands ν7+ ν8− ν8and ν4+ 2ν8− ν8of Methyl Isocyanide
✍ Scribed by J. Plı́va; L.D. Le; R.A. Bernheim
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 216 KB
- Volume
- 180
- Category
- Article
- ISSN
- 0022-2852
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✦ Synopsis
The perpendicular hot bands n
and n 4 / 2n {2 8 0 n { 8 (E-E) occurring in the region of the n 7 fundamental of CH 3 NC (1050-1250 cm 01 , cf. J. PlıB va et al., J. Mol. Spectrosc. 173, 423-430, 1995) have been analyzed. Eleven subbands of the E-E component and 10 subbands of the A 1,2 -E component of n 7 / n 8 0 n 8 plus four subbands of n 4 / 2n 8 0 n 8 have been assigned and used in the analysis. The fundamental states n 6 and n 3 which strongly affect the upper states of the hot transitions by anharmonic and Coriolis resonances have been included in a comprehensive analysis. Reliable values are reported for the spectroscopic and interaction constants of all the states involved as well as for the vibrational and anharmonic constants x 78 , x 78 (g 78 ), x 48 , v 0 8 , x 88 , and x 88 (g 88 ).
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