Solutions containing different ratios of complexes 1 and 2 were spin-coated on ITO/polyethylene terephthalate (PET; 3 cm × 3 cm), forming [Rux|Coy]n. Note: x and y represent their molar ratios in the feeding solutions, respectively, n is the number of depositing cycles (Scheme 1B). Subsequently, a layer of complex 3 was deposited to afford [Rux|Coy]n[Fe]6 (Scheme 1B). Palladium dichloride served as a linker for attaching the complexes to the substrate surfaces as well as a linker for the MAs by coordination with the vinylpyridine moieties. The deposition sequence for the formation of [Rux|Coy]n was repeated three to four times (= n) in order to reach a thickness that prohibits direct electrochemical communication between the conductive support and the top layer consisting of complex 3 (Figure ).