$ELPOT group (not required)
This group controls electrostatic potential calculation.
This property is the electrostatic potential V(a) felt
by a test positive charge, due to the molecular charge
density. A nucleus at the evaluation point is ignored.
If this property is evaluated at the nuclei, it obeys the
equation
sum on nuclei(a) Z(a)*V(a) = 2*V(nn) + V(ne).
The electronic portion of this property is called the
diamagnetic shielding.