Covalent association of the redox-active TTF framework to N-ligands for the coordination of transition-metal cations

The synthesis as well as the solution characterization of electroactive assemblies associating the TTF core and N-ligands are presented. Two families of ligands L1 and L2 have been designed for the coordination of transition metals. Polyaza-macrocycles L1 and notably N 4 (cyclam) (L1a) or N 2 O 4 (Lie) macrocyclic units were grafted to the TTF framework under high pressure conditions. The introduction of the pyridyl moiety has been realized on the periphery of the TTF skeleton to give rise to the new electroactive ligand L2. Ligands L1 and L2 have been electrochemically characterized, including their ability to coordinate metal cations.