Background: The following potential gives a model of the
qualitative features of the bonding in general and the 
molecule in particular,
Here, each 
-function represents the strong attractive
potential concentrated mostly near each of the nuclei, which are at
separation R, and 
gives a measure of the strength of the
potential. Finally, we will imagine that the nuclei in our molecule
each have mass M and repel each other with a potential 
and
that the molecule contains one electron of mass m.