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High-resolution Fourier transform spectrum of H2S in the region of the second hexade |
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| Authors: | ON Ulenikov A-W Liu OV Gromova S-M Hu |
| Institution: | a Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China b Laboratory of Molecular Spectroscopy, Physics Department, Tomsk State University, Tomsk 634050, Russia c USTC Shanghai Institute for Advanced Studies, University of Science and Technology of China, Shanghai 201315, China |
| Abstract: | High-resolution Fourier transform infrared spectrum of  was recorded and analyzed in the region of the second hexade  . More than 1700 transitions were assigned to the 2ν1 + ν2, ν1 + ν2 + ν3, ν1 + 3ν2, 3ν2 + ν3, 5ν2, and ν2 + 2ν3 bands with the maximum value of quantum number J equal to 18, 18, 13, 11, 13, and 9, respectively. The theoretical analysis was fulfilled with a Hamiltonian model which takes into account numerous resonance interactions between all the vibrational states in this polyad. By a least-square fitting, finally 505 upper energy levels were reproduced by 80 parameters with an rms deviation of 0.0019 cm−1. |
| Keywords: | Vibration-rotation spectra H2S molecule Resonance interactions Spectroscopic parameters |
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