Vol. 19, issue 08, article # 4

pdf Naumenko O. V., Polovtseva E. R. The local mode effect and the ambiguity of the rovibrational wavefunctions calculation for the hydrogen sulfide molecule. // Atmospheric and oceanic optics. 2006. V. 19. No. 08. P. 621-625.
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The local mode effect observed in the experimental spectrum of hydrogen sulfide molecule in the 8400-8900 cm-1 region has been studied. This effect causes formation of the fourfold energy clusters of Type II. In the course of the spectrum analysis it has been shown that the wavefunctions corresponding to fourfold clusters are defined ambiguously from the energy level fitting, which results in ambiguity in calculation of the transition intensities. It is shown that the ambiguity can be eliminated using the experimental information about transition intensities.