Synthesis and Characterization of New Ruthenium-Tungsten Bimetallic Complex Equipped With Anchoring Ligand

A new ruthenium-tungsten bimetallic complex equipped carboxylic as anchoring ligand and thiocyanate as bridging ligand has successfully synthesized. Ruthenium complex and tungsten hexacarbonyl are used as starting materials. The synthesis process involves two-step reactions in one-pot with ultraviolet light and monitored by FTIR spectroscopy. The final product fully characterized by UV-Vis, FTIR, 1HNMR, 13CNMR, and LCMS spectroscopies analysis confirms that the product is a bimetallic complex with molecular formula Ru(C12H8N2O4)2-(NCS)2-W(CO)4. Cyclic voltammetry of the complex exhibit one reversible redox couple, two quasi-reversible redox couples and one irreversible redox peak. The complex absorbs light energy in a wider solar spectrum compared to related ruthenium complex. The complex is supposed to be a good dye-sensitizer to improve TiO2 photoelectrode performance in artificial photosynthesis applications.