Synthesis, characterization and electrochemical behaviour of dimethyleneamine-bridged methylated and non-methylated biferrocenyl derivatives

Publication date: Available online 15 June 2019Source: Journal of Organometallic ChemistryAuthor(s): Raquel Sevilla, Marta Herrero, Beatriz Alonso, M. Pilar García-Armada, Manuel Algarra, Carmen M. CasadoAbstractTwo dimethyleneamine-bridged octamethylated and non-methylated biferrocenyl complexes, compounds 1 and 2, have been synthesized and characterized by 1H, 29Si{1H} and 13C{1H} NMR spectroscopy, and mass spectrometry. The redox activity of the ferrocenyl centers in 1 and 2 has been characterized by cyclic voltammetry in dichloromethane containing [n-Bu4N][PF6], [n-Bu4N][B(C6F5)4] or [n-Bu4N]Cl as electrolyte support. Their electrochemistry is not only strongly dependent on the solvent/electrolyte medium but also on the substituents of the ferrocenyl moieties. Studies of the electrochemical oxidation of 1 provide evidence of the grafting of a ferrocene species onto platinum electrode surfaces.Graphical abstract

Source: Journal of Organometallic Chemistry - June 16, 2019 Category: Chemistry Source Type: research