  Electron scattering and dielectronic recombination with an ion in the
presence of a neighboring atom is studied. The incident electron is assumed to
be captured by the ion, leading to resonant excitation of the atom which
afterwards may stabilize either by electron re-emission or radiative decay. We
show that the participation of the atom can strongly affect, both
quantitatively and qualitatively, the corresponding processes of electron
scattering and recombination. Various ion-atom systems and electronic
transitions are considered. In particular we show that electron scattering
under backward angles may be strongly enhanced and derive the scaling behavior
of two-center dielectronic recombination with the principal quantum numbers of
the participating atomic states.
