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Complexes investigated in this study. Top: [Fe4S4Cl4]1− and[Fe4S4Cl4]2−, the β‐diketiminate‐supported (L1−) iron sulfur complexes L2FeIIIFeIIIS2, [L2FeIIIFeIIS2]1−, and L2FeIIFeIIS. Bottom: FeMoco cofactor and P‐cluster, contained in MoFe protein, [MoIIIFeIIIFeII2S2]2+ ([MoFe3S4]2+), and [FeIII 2FeII2S2]2+ ([Fe4S4]2+).
