Table 4. Catalytic parameters for 1–3 in CH₃CN in the presence of HTFA at a catalyst-to-acid ratio of 1 : 100.

Catalytic parameters	1	2	3
E(H+/H2) (V) vs. Fc/Fc+	–1.03	–1.04	–1.03
Overpotential (V) (10 eq. HTFA)	0.35	0.36	0.35
TON/3 h (4.0 × 10–5 mol)	18.7	13.8	13.8
Faradaic efficiency (%)	77	84	75