Two original self-assembled containers constituted each by six electroactive subunits are described. They are synthesized from a concave tetratopic pi-extended tetrathiafulvalene ligand bearing four pyridyl units and cis-M(dppf)(OTf)(2) (M = Pd or Pt; dppf = 1,1'-bis(diphenylphosphino)ferrocene; OTf = trifluoromethane-sulfonate) complexes. Both fully characterized assemblies present an oblate spheroidal cavity that can incorporate one perylene molecule.