Laboratoire d''Electrochimie et Chimie Physique du Corps Solide, Institut de Chimie, Université Louis Pasteur, Strasbourg, France
Abstract:
The polarographic reduction of Re3Cl123? anion gives a single polarographic wave corresponding to a two-electrons reversible process. Classical polarographic measurements and instantaneous current—time curves show that the limiting current is diffusion controlled. Plotting the half-wave potential vs pH and pCl, it appears that one chloride ion is released in the reduction of one atom of rhenium, and that H+ ion is not involved in the reduction. The overall electrochemical reaction is:
