However, then there are these femtometer orbits, closer than the ground state - as I have just written, they contradict the Bohr-Sommerfeld quantization condition, so EM field cannot evolve in a resonant way, there are needed some nasty high energy fluctuations there.
The deep orbits are highly relativistic and should also lead to an increase of the dipolmomentum and raise other strange questions. But for a first guess we must answer the following question: Which state lives longer? In one paper they (P & M ?) prove that H2+ deep orbit states live reasonably long, to cause LENR reactions. A scattering electron stays there (deep) for a awfull short period of time. But could cause some LENR effects too.