  It is shown that differences observed between the ionization potentials of
the molecular-doped metallic clusters and those corresponding to the bare
metallic ones can be explained by a two-step approach of the classical Liquid
Drop Model. This approach takes into account the distinct physical properties
of the interface between the molecular core and the metallic shell. Also, it is
shown that the presence of the molecular core may act in the determination of
the predominant channel of the coulombic fission.
