# FTS-LIF- II INVESTIGATION OF TWO WEAKLY BOUND STATES OF THE IODINE MOLECULE : $1_{g}$ and $O_{g}^{+}$

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 Title: FTS-LIF- II INVESTIGATION OF TWO WEAKLY BOUND STATES OF THE IODINE MOLECULE : $1_{g}$ and $O_{g}^{+}$ Creators: Churassy, S.; Bacis, R.; Field, R. W.; Martin, F.; Vergès, J. Issue Date: 1980 Abstract: During the study of the $BO_{U}^{+} \rightarrow X^{1}\Sigma^{+}_{g}$ fluorescence, very weak line. (with intensity = $\frac{1}{1000}$ of the intensify of The B$\rightarrow X$ system) in the 7000 - 7100 $cm^{-1}$ region, allowed the analysis of the 1$_{g}$ and $O_{g}^{+}$ iodine electronic states dissociating at the same level $(^{2}P_{3/2} + ^{2}P_{3/2}$) as the X state. The high throughput of the Fourier interferometer allows a good Signal to Noise Ratio record and then a precise rotational analysis of ten 1$_{g}$ and four $O_{g}{^{+}}$ vibrational levels. These two states are weakly bound states :[FIGURE] The precise description obtained in that non pertubed range allows the determination of possible pertubations in other regions. Some of them are in the range of the L.I.F. and are analysed. URI: http://hdl.handle.net/1811/11410 Other Identifiers: 1980-TG-12