A novel two-step �on-surface� assembly method has been designed to build a Ru(bpy)3 complex directly onto a nanocrystalline metal oxide surface. This was achieved by first grafting a �building-block� ligand (2,2'-bipyridine) to the surface through a Williamson ether synthesis like reaction utilizing organo-halide compounds. A solution of [Ru(bpy)2(CH3CN)2](PF6)2 was then exposed to the surface under UV irradiation to obtain the full Ru(bpy)3 complex tethered to the surface. The stability of the complex in water and the charge transfer characteristics were then measured. After dissociation in water, the molecules were shown to be regenerable when re-exposed to the [Ru(bpy)2(CH3CN)2](PF6)2 solution. The two-step method can be extended to other metal-containing light-harvesting complexes, including those containing Cu.

Formation of regenerable light-harvesting complexes on SnO<sub>2</sub> nanocrystalline films via �on-surface� assembly

247th National Meeting (2014)

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Formation of regenerable light-harvesting complexes on SnO2 nanocrystalline films via �on-surface� assembly

Formation of regenerable light-harvesting complexes on SnO₂ nanocrystalline films via �on-surface� assembly