The synthesis of a lipophilic ethylenediamine palladium (II) complex and its activity in planar bilayer membranes are reported. In acetonitrile solution containing one equivalent of 4, 4- bipyridine the complex forms the expected metallosupramolecular tetrameric square. The same mixture provokes transmembrane conductance of three types: an initial period of erratic behavior, occasional short channel-like openings, and frequent very long-lived and ...
