Synthesis of MUV-1-F Ferrocene (30 mg, 0.16 mmol) and 5-fluorobenzimidazole (46.3 mg, 0.34 mmol) were combined and sealed under vacuum in a layering tube (4 mm diameter). The mixture was heated at 250 °C for 3 days to obtain crystals suitable for X-ray single-crystal diffraction. The product was allowed to cool to room temperature, and the layering tube was then opened. The unreacted precursors were extracted with acetonitrile and benzene, and the product was isolated as colorless crystals (yield 80 %). Phase purity was established by X-ray powder diffraction.