Linestrength Measurements for N2O around 4 μm: Σ ← Σ Transitions in Four Isotopic Species (2400-2600 cm−1)

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

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 573 KB
• Volume: 164
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.1994.1065

✦ Synopsis

Linestrengths have been measured for 12 bands of (\mathrm{N}{2} \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 for ({ }^{14} \mathrm{~N}{2}{ }^{16} \mathrm{O}) are the cold bands (\nu_{1}+2 \nu_{2}) and (2 \nu_{1}) and their associated hot bands starting from the (02^{\circ} 0) or (10^{\circ} 0) levels. Transitions starting from the (00^{\circ} 0) level have also been measured for the minor isotopic species ({ }^{14} \mathrm{~N}_{2}{ }^{18} \mathrm{O},{ }^{15} \mathrm{~N}^{14} \mathrm{~N}^{16} \mathrm{O}), and ({ }^{14} \mathrm{~N}^{15} \mathrm{~N}^{16} \mathrm{O}). 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. 1994 Academic Press, Inc.