1,3,5-Tris(4-aminophenyl)benzene derivatives: design, synthesis via nickel-catalysed aromatic amination and electrochemical properties
Résumé
Nickel-catalysed polycondensation reactions of 1,3,5-tris(p-chlorophenyl)benzene with secondary cyclic and acyclic amines afforded the corresponding triarylamines in good yields. Oxidation of these materials creates dications diradicals that are stable over several minutes at room temperature. The electronic and magnetic properties of these dications were investigated by cyclic voltammetry, chronoamperometry, UV–VIS and EPR spectroscopy.