`
[-](or|origin|momentor)` *N*

This option defines the origin of the molecular electrostatic moments. The available option values are:

N | Meaning |
---|---|

0 | center of mass (the default) |

1 | the origin of the IDF axis system, i.e. (0, 0, 0) |

Monopoles, *m*^{(0)}, do not change under translation of
the axis system, because they are *scalars*.
The components of the dipole remain unchanged under translation of the axis
system only if the monopole is null. In general,
a symmetric Cartesian tensor **m**^{(n)}
of order *n* is invariant under translation of the axis system
provided that *all* the symmetric Cartesian tensors of lower order,
up to *n*−1, are null.
On the other hand, the translation of a polytensor,
whose component tensors are all null but the monopole *m*^{(0)},
generates a polytensor with non-null component tensors of any order.[1]

- "Cartesian Multipole Moment Tensors
and Polytensors."

In "PAMoC User's Manual".