LOCAL MODE SPECTROSCOPIC STUDY OF THE AsH3 MOLECULE: THE PERTURBED (500) LOCAL MODE OVERTONE |
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| Authors: | Lin Hai N. Ulenikov M. Olekhnovitch Wang Dong Chen Xi-yi Hao Lu-yuan Zhu Qing-shi |
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| Affiliation: | Laboratory of Bond Selective Chemistry, University of Science and Technology of China, Hefei 230026, China; Laboratory of Bond Selective Chemistry, University of Science and Technology of China, Hefei 230026, China; Laboratory of Molecular Spectroscopy, Department of Physics, Tomsk State University, Tomsk 634050, Russia |
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| Abstract: | The high resolution Fourier transform spectra of AsH3 in the region of 9720-9900 cm-1, which had been recorded at a resolution of 0.015 cm-1, were assigned to the (500; A1) and (500; E) local mode overtones and rotationally analyzed. The effective spectroscopic parameters were obtained by nonlinear least-squares fitting the vibration-rotational Hamiltonian with the rotational energy levels up to J=6 (98 levels in all) included. The evolution of the rotational energy patterns from v=1 to v=6 shows that the tendency of normal mode to local mode vibration evolution has been stopped by perturbations in relatively high energy region. |
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