Linestrength Measurements for N2O Around 4 μm: Π ← Σ, Π ← Π, Σ ← Π, and Δ ← Π Transitions in 14N216O (2400-2850 cm−1)

✍ Scribed by F. Rachet; M. Margottinmaclou; M. Elazizi; A. Henry; A. Valentin

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 538 KB
• Volume: 164
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.1994.1066

✦ Synopsis

Linestrengths have been measured for five bands of ({ }^{14} \mathrm{~N}{2}{ }^{16} \mathrm{O}) using a Fourier transform spectrometer, with an effective response function width of about (5 \times 10^{-3} \mathrm{~cm}^{-1}). The observed bands are the cold band (\nu{2}+\nu_{3}) and the hot bands starting from the (01^{1} 0) level, associated to the (\nu_{1}+) (2 \nu_{2}, 2 \nu_{1}), and (\nu_{2}+\nu_{3}) main bands. Measurements have been carried out with a relative accuracy better than (2 %). Analysis of the results yields the squared vibrational transition dipole moment and the parameters describing the vibration-rotation interaction effects. An important contribution of the (l)-type resonance has been observed for both the (02^{0} 1 \leftarrow 01^{\prime} 0) and the (02^{2} 1 \leftarrow 01^{1} 0) transitions; the corresponding quadratic Herman-Wallis parameters have been calculated and compared to the observed ones. (c) 1994 Academic Press. Inc.