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The High Resolution Infrared Spectrum of CH3D in the Region 900–1700 cm−1

✍ Scribed by A. Nikitin; J.P. Champion; Vl.G. Tyuterev; L.R. Brown

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
344 KB
Volume
184
Category
Article
ISSN
0022-2852

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✦ Synopsis

The high resolution absorption spectrum of CH 3 D in the region 900-1700 cm 01 has been reexamined on the basis of new long path experimental data recorded with the Fourier transform spectrometer at Kitt Peak. A theoretical model used previously for spherical rotors has been adapted for symmetric top molecules in order to analyze the vibrational polyads of CH 3 D simultaneously. Both triad and nonad-triad band systems have been investigated. The hot band intensities were estimated through direct extrapolation of the triad dipole moments. Six hundred lines from the hot bands have been assigned and combined with other data for the triad. The main hot bands contributions are due to 2n 6 0 n 6 , 2n 3 0 n 3 , n 3 / n 6 0 n 3 and n 3 / n 6 0 n 6 bands. The standard deviation achieved for 3377 line positions of the triad was 0.56 10 03 cm 01 , representing an improvement of one order of magnitude with respect to the most recent analysis.

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