Synthesis and Morphological Properties of Terpyridine-Platinum-Pyridine Complexes on the Dendritic Periphery

We synthesized a dendrimer with 16 terpyridine-platinum-pyridine groups on the dendritic periphery. The terpyridine-platinum (I) complex on the periphery of the dendritic carbosilane has been prepared from the reaction of Pt(COD)Cl2 and the 2,2′:6′,2′′-terpyridine groups. The terpyridine-platinum-pyridine complexes on the dendritic surface were prepared from ligand exchange of the platinum (I) complex from chloride ions to 4-(6-mercapto-l-thiohexa)pyridine. The chemical structure of the dendrimer was verified by using NMR and UV spectroscopy. The actual shape and size of individually dispersed dendrimers on the substrate were investigated by using tapping mode atomic force microscopy (TM-AFM). As a result, the dendrimers were domed shaped on the substrate and regular in size, respectively.