“…The oxidation potentials of L1 and L2 are 0.42 and 0.26 V, respectively, which can be ascribed to the oxidation process of [Fe I Fe I ] to [Fe II Fe I ]. The first reduction potentials of the two ligands are −1.20 and −1.18 V, respectively, which correspond to the reduction process of [Fe I Fe I ] to [Fe 0 Fe I ]. , The second reduction potentials of L1 and L2 are −1.77 and −1.80 V, respectively, which are assigned to the reduction process of [Fe 0 Fe I ] to [Fe 0 Fe 0 ]. As shown in Figure c–e, the polymers retain the electrochemical features of the [Fe 2 S 2 ] cluster, with the oxidation potentials at 0.43, 0.40, and 0.48 V, respectively, and the reduction potentials at −1.13/–1.86, −1.13/–1.82, and −1.04/–1.81 V, respectively, for 1 – 3 .…”