B. Meana-Esteban, C. Kvarnström, A. Ivaska
Jun 1, 2005
Citations
0
Influential Citations
10
Citations
Journal
Journal of Solid State Electrochemistry
Abstract
Oligomers of 2-methoxynaphthalene and 1,1′-binaphthyl were electrochemically synthesized by cyclic voltammetry (CV) in 0.1 M tetrabutylammonium hexafluorophosphate–nitrobenzene (TBAPF6–NB). The redox characterization of the films was studied in monomer-free 0.1 M TBAPF6–NB and 0.1 M tetrabutylammonium hexafluorophosphate–acetonitrile (TBAPF6–ACN) solutions. The electrochemical response from the anodic charging (p-doping) of an oligo(1,1′-binaphthyl) film in both solvents consists of a continously increasing current without a well-defined oxidation peak. Upon discharging the film a distinct reduction peak can be seen. The p-doping response of an oligo(2-methoxynaphthalene) film in both solvents consists of a prepeak followed by a plateau until the new electrochemical process starts. On the reverse scan two poorly resolved reduction peaks which merge into a broad cathodic peak as the scan rate increases can be observed. The cathodic charging and discharging (n-doping) response of 2-methoxynaphthalene film in 0.1 M TBAPF6–ACN consists of a broad and well-defined redox peak. The structures of the film were studied by Raman and Fourier transform infrared spectroscopy (FTIR). Both techniques provide complementary vibrational information on the coupling of the starting materials studied. The morphologies of the electrosynthesized films were studied by scanning electron microscopy (SEM). The influence of the two substituents, the methoxy and naphthyl groups, on the electrosynthesis properties of the naphthalene molecule was studied.