$ELPOT group   (not required)
 
This group controls electrostatic potential calculation.
 
IEPOT = 0 skip this property (default)
        1 calculate electric potential
 
WHERE  = COMASS   - center of mass
         NUCLEI   - at each nucleus (default)
         POINTS   - at points given in $POINTS
         GRID     - at grid given in $GRID
         PDC      - at points controlled by $PDC.
 
OUTPUT = PUNCH, PAPER, BOTH (default), or NONE
 
PCMGEX = exponent for replacing point charges representing
         solvent in PCM with Gaussians, used only for
         molecular electrostatic potential (MEP).
         The recommended value is 1, using which strong
         potential near solvent charges is blurred.
         Default: 1.0
 
PCMGTO = accuracy for approximating Gaussians (PCMGEX)
         with point charges for the purpose of acceleration.
         PCMGTO is only used for MEP/PCM.
         Default: 1e-8
 
MODPOT = 1 neglect the PCM contribution in PCM runs.
 
    This property is the electrostatic potential V(a) felt
by a test positive charge, due to the molecular charge
density, of both nuclei and electrons.  If there is a
nucleus at the evaluation point, that nucleus is ignored,
avoiding a singularity.  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.