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(A) Nyquist plot for [Pt19(CO)22]4– using a Pt electrode. (B) Bode plot using a Pt electrode. (C) Nyquist plot for [Pt19(CO)22]4– using a GC electrode. (D) Bode plot using a GC electrode. The working DC potentials for each curve were 0.060 V (black circles), −0.180 V (red circles), −1.100 V (green circles), and −1.250 V (blue circles).
