Experiments on the collisional activation of [Mn . (pyridine)(n)](2+) have revealed the presence of a new charge transfer channel, whereby clusters of the form (pyridine): for k less than or equal to 3 are observed when n less than or equal to 6. Several possible metal-ligand configurations are considered including sandwich and charged-separated structures. It is concluded that the complexes consist of a central doubly charged metal ion, and that electron transfer from a molecule is accompanied by the simultaneous association and removal of nearest neighbour ligands.