In Situ Polarization Modulation-fourier Transform Infrared Spectrollectrochemistry of Phenazine and Phenothiazine Dye Films at Polycrystalline Gold Electrodes
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چکیده
Polarization modulation-Fourier transform infrared (PM-FTir) spectra were. obtained in situ for polymer films of neutral red and thionine, and for a lilm of leucomethylene blue generated on a gold electrode as a function of potential. The spectra of the polymer films revealed that the aromatic rings lie mostly parallel to the electrode surface in both the reduced and oxidized forms. In contrast, the spectrum of the adsorbed leuco methylene blue tilm indicated that most of the molecules within the film are oriented perpendicular to the gold surface.
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