Subdoppler Study of the ν7Band of C2H4with a CO2Laser Sideband Spectrometer

✍ Scribed by E. Rusinek; H. Fichoux; M. Khelkhal; F. Herlemont; J. Legrand; A. Fayt

• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 381 KB
• Volume: 189
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.1998.7539

✦ Synopsis

The saturation spectrum of ethylene has been studied between 900 and 1100 cm-1 with the sub-Doppler sideband spectrometer of Lille. Two hundred absorption lines have been recorded with an absolute accuracy of approximately 15 kHz. On the basis of these accurate data, a new global analysis of the GS and of the nu7, nu10, and nu4 upper states was achieved taking into account the Coriolis interactions up to the third order. A statistical agreement is obtained with all experimental data with an estimated standard deviation equal to 0.825. The spectra of ethylene between 900 and 1100 cm-1 become very good wavenumber standards with an absolute accuracy of 10(-6) cm-1. Copyright 1998 Academic Press.