Fig. 5. Cyclic voltammogram of complex 6 (3.0 mM) obtained in a 0.1 M KCl aqueous solution using a glassy carbon working electrode, platinum auxiliary electrode, and Ag/AgCl reference electrode at 500 mV s⁻¹. The inset is a plot of ν^1/2versus I_pa and indicates that the oxidation is diffusion controlled.