Is ionization potential a function of internuclear distance?

[maNoFchangE]

Has there been a study which concludes that the ionization potential of a diatomic molecule depends on the internuclear distance? For example, let this molecule interact with an EM wave, and hence after the disturbance the molecule vibrates. If subsequently I send an ionizing radiation with certain delay after the previous wave, will I observe a variation of the ionization potential as a scan the delay through a given interval?

 

[mfb]

The ionization energy is different for excited states. You can bring your molecule or atom to an excited state before you ionize it, sure.

Some random google hits:
Ionization behavior of molecular hydrogen in intense laser fields: Influence of molecular vibration and alignment
Vibration Frequency and Ionization Potential : Halide Molecules
Tunneling ionization of vibrationally excited nitrogen molecules
Rotation-vibration level energies of the hydrogen and deuterium molecule-ions

 

[maNoFchangE]

Cool, that's quite a reference. Thanks man!.