>how three atoms, sharing the same xyz position, could be refined in terms of
>their occupancies via FullProf
One of many possible options is to set 11.0 for one atom and -10.5 for the two
others.
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Leonid A. Solovyov
Institute of Chemistry
Even with neutron diffraction :-) you can only refine the scattering power
(length) of each site. When you refine the occupancy of two atoms on a
single site you are adding additional "information" by assuming that the
site is fully occupied by one or the other. That may be true, or not. If
the
