The \(\nu_{2}+\nu_{3}-\nu_{2}\) hot band of \(\mathrm{NH}_{3}^{+}\left(\dot{X}^{2} A_{2}^{\prime \prime}\right)\) has been observed on the absorption spectrum recorded by using a difference frequency laser spectrometer combined with the velocity modulation technique in the region between 3500 and \(
The a2ν2 ← sν2 bands of 14NH3 and 15NH3
✍ Scribed by Romola D'Cunha
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 354 KB
- Volume
- 122
- Category
- Article
- ISSN
- 0022-2852
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To complete the analysis of the complex infrared spectra of 14 NH 3 in the 4-to 8-µm region, we assigned nearly 1200 transitions in the 3ν 2 -ν 2 , ν 2 + ν 4 -ν 2 , ν 1 -ν 2 , ν 3 -ν 2 , 2ν 4 -ν 2 , and 4ν 2 -ν 2 hot bands using the upper state energy levels determined by our previous studies at 4 a
Absolute line intensities of NH 3 in the 2 band were measured for a number of rovibrational lines using a high-resolution Fourier transform infrared spectrometer. The transition dipole moments calculated from the absolute intensities showed significant and systematic deviations from the usual rotati