“…17,19 Rapid kinetics associated with the chemical step is paramount to the observation of reversible The oxidation reaction, first reported in the 1970's 20,21 , proceeds through an RSD/ECE mechanism described by Equations 2-5 and the green dashed line shown in Figure 3. 22,23 RSD refers to radical substrate dimerization, a term derived from 2eelectrochemistry with organic molecules, 17,24,25 which indicates that the chemical step involves reaction with a second equivalent of the substrate molecule (i. (q, -CH2-), 1.21 (t, -CH3), UV-visible absorbance spectroscopy: λmax (ε) = 388 nm (5,600 M -1 cm -1 ) and 323 nm (26,700 M -1 cm -1 ), and X-ray crystallography.…”