BENDING STRUCTURE IN THE $\tilde {A}^{2}\Pi_{\mu} - \tilde {X}^{2}\Pi_{g}$ TRANSITION OF $CO^{+}_{2}$

Author Institution: Laboratoire de Photophysique Mol\'{e}culaire du C.N.R.S., Universit\'{e} de Paris-SudAnalysis of vibronic subbands involving low vibronic levels of the $\tilde{A}$ and $\tilde{X}$ states of $CO^{+}_{2}$ has been performed, and vibronic parameters of both electronic states have been obtained. The bending frequency and Renner-Teller parameters of the $\tilde{A}$ state have been determined for the first time. Vibrational and rotational analyses of bands involving high vibronic levels are in progress, in order to obtain anharmonicity constants and improved potential energy functions. A complete deperturbation of (100, 020) Fermi diad of the ground state has been achieved