The Rotational Spectrum of Trimethylamine Measured by Microwave and Millimeter-Wave Fourier-Transform Spectroscopies and by Sideband Laser Spectroscopy

✍ Scribed by X.L. Li; R. Bocquet; D. Petitprez; D. Boucher; L. Poteau; J. Demaison

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 314 KB
• Volume: 172
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.1995.1192

✦ Synopsis

The ground state rotational spectrum of the (C_{3 v}) symmetric top molecule trimethylamine was measured from 8 to (700 \mathrm{GHz}) using microwave and millimeter-wave Fourier-transform spectroscopies as well as far-infrared laser sidebands spectroscopy. The nitrogen quadrupole coupling constant was accurately determined: (e Q q\left({ }^{14} \mathrm{~N}\right)=-5.5002(18) \mathrm{MHz}). A centrifugal distortion analysis was performed and all the determinable sextic constants were accurately determined. For high- (J) values, a splitting of the (K=3) lines was observed and the splitting constant (h_{3}) was determined. 1995 Academic Press, Inc.