Fourier-transform microwave spectroscopy of N-methylaniline

The jet-cooled Fourier-transform microwave spectrum of N-methylaniline (C 6H 5-NHCH 3) was recorded in the region of 10–26 GHz, and was analyzed to determine rotational constants and nuclear quadrupole coupling constants. Furthermore, a Coriolis-like coupling parameter characterizing an interaction...

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Bibliographic Details
Published in:Journal of molecular spectroscopy 2006, Vol.235 (1), p.27-34
Main Authors: Fujitake, Masaharu, Aoyama, Junpei, Ohashi, Nobukimi
Format: Article
Language:English
Subjects:
Fourier-transform microwave spectrum
N-Methylaniline
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Summary:The jet-cooled Fourier-transform microwave spectrum of N-methylaniline (C 6H 5-NHCH 3) was recorded in the region of 10–26 GHz, and was analyzed to determine rotational constants and nuclear quadrupole coupling constants. Furthermore, a Coriolis-like coupling parameter characterizing an interaction between an internal rotation of a methyl group and an overall rotation was also determined from A– E splittings observed in pure rotational transitions with high K a values. The Coriolis-like coupling parameter permitted the determination of the barrier to internal rotation of the methyl group which was found to be 975 cm −1.
ISSN:0022-2852
1096-083X
DOI:10.1016/j.jms.2005.10.002