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. 2022 Mar 14;7(12):10087–10099. doi: 10.1021/acsomega.1c06129

Table 3. Electrochemical Potentials of Compounds 1af (C = 1 × 10–4 mol L–1) in MeCN Measured by CV Relative to Ag/AgCl/KCl (sat.) in the Presence of 0.1 M Bu4NClO4 on a GC Electrode (Potential Sweep Rate of 200 mV s–1) and Frontier Orbital Energies Calculated by Quantum Chemistry.

  R1, R2 Ered, V EA, eV ΔEred, mV (ΔEA)a Eox, V IP, eV ΔEox, mV (ΔIP)b ΔE = Eox – Ered, V EA–IP, eV
1a H, H –1.38 2.642 0 2.02 6.291 0 3.40 3.649
1b OMe, H –1.51 2.513 130 (129) 1.52 5.840 500 (451) 3.03 3.327
1c SMe, H –1.39 2.618 10 (24) 1.33 5.724 690 (567) 2.72 3.106
1d OMe, OMe –1.46 2.524 80 (118) 1.53 5.695 490 (596) 2.99 3.171
1e NMe2, H –1.63 2.316 250 (326) 0.87 5.098 1150 (1193) 2.50 2.782
1f NEt2, H –1.64 2.304 260 (338) 0.86 5.059 1160 (1232) 2.50 2.755
a

Shift of the reduction potentials relative to those of 1a.

b

Shift of the oxidation potentials relative to those of 1a.