Fig. 2. Ultrathin film fabrication. The [Fe(py)2{Pt(CN)4}] schematic structure and automated LbL fabrication process detailing four different molecular components: the axial ligand py, the [Pt(CN)4]2– complex, the Fe2+ centers and the py-SH SAM. The SAM-functionalized Si/Ti/Au substrate is sequentially immersed in ethanol solutions of the molecular components, first Fe2+/py (1) and then [Pt(CN)4]2–/py (3) with intermediate washing steps in-between them (2 and 4). Sequential cycling for controllable film thickness is performed using an automatic dipping system to ensure reproducibility. The whole process is carried out inside a glovebox to avoid FeII oxidation.
