To further investigate the redox behavior of TEMPO core alone in the presence of BF3, we drew inspiration from a study by Zhang and coworkers, who used a different Lewis acid (Al(OTf)₃) . In our case, bare TEMPO was exposed to varying amounts of BF 3 -CH 3 CN (0 to 5 eq.), potentially inducing similar disproportionation and loss of electroactivity as observed in their study. Cyclic voltammograms recorded in bare TEMPO solutions with different molar amounts of BF₃-CH3CN, starting from EOC values, are shown in Figure . As shown in Figure , the addition of the BF₃-CH3CN complex caused a partial loss of electroactivity in the TEMPO electrochemical system, particularly a decrease in the TEMPO oxidation signal, which disappeared entirely when more than 1 molar equivalent of the Lewis acid was added. This change was accompanied by a positive shift in the EOC indicating the loss of TEMPO radicals and suggests the formation of TEMPO⁺ species , among others, similar to trends observed with Al(OTf)₃ .