Subtractively Normalized Interfacial Fourier Transform Infrared Spectroscopy of Difluorobenzene Adsorbed at Polycrystalline Platinum Electrodes

摘要

The subtractively normalized interfacial Fourier transform infrared spectra (SNIFTIRS) of the difluorobenzenes in perchloric acid solutions show that the species are absorbed flat at low concentrations of the substrate. In concentrated solutions, the packing changes to a skewed configuration. For these molecules there is no indication of vibrational coupling to the strong electrical field at the electrode surface and the vibrational spectra are as predicted by the standard surface selection rule.