The high-resolution Fourier transform spectrum of the HDO molecule was recorded and analyzed in the region 6140-7040 cm−1 where the bands v1 + v3, 2v2 + v3, and 2v1 + v2 are located. The presence of strong local resonance interactions allowed us to assign some tens of transitions to the weak bands 5v2 and v1 + 3v2 as well. Spectroscopic parameters of the analyzed bands were estimated. They reproduce initial upper energies with the accuracy close to experimental uncertainties.
Bibliographical noteFunding Information:
This work was partially supported by the National Project for the Development of Key Fundamental Sciences in China, by the National Natural Science Foundation of China, by the Foundation of the Chinese Academy of Science, and by the Ministry of Education of Russian Federation. O. Ulenikov thanks the University of Science and Technology of China for a guest professorship, and E. Bekhtereva thanks the Ru Jia-xi Foundation for financial support during her stay in Hefei in March–May, 2001.
- HDO molecule
- Spectroscopic parameters
- Vibration-rotation spectra