Département de chimie moléculaire

A new heteroleptic polypyridyle Ru(II) complex was synthesized and deposited on surface by the diazonium electroredn. process. It yields to the covalent grafting of a monolayer. The functionalized surface was characterized by XPS, electrochem., AFM, and STM. A precise organization of the mols. within the monolayer is obsd. with parallel linear stripes sepd. by a distance of 3.8 nm corresponding to the lateral size of the mol. Such organization suggests a strong cooperative process in the deposition process. This strategy is an original way to obtain well-controlled and stable functionalized surfaces for potential applications related to the photophys. properties of the grafted chromophore. As an exciting result, it is the first example of a self-organized monolayer (SOM) obtained using diazonium electroredn. [on SciFinder(R)]