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. 2014 Dec 31;20(2):447–460. doi: 10.1007/s00775-014-1230-6

Fig. 5.

Fig. 5

Oxidation states and spin states of various synthetic [MoFe3S4] and [VFe3S4] cubanes, as well as the proposed oxidation state assignments of the resting state of FeMoco. It should be noted that for FeMoco, only the formal (and not the physical) oxidation states are shown. The actual physical oxidation state distribution is most likely more complicated due to electron delocalization [as seen in the Fe(2.5) pairs of the cubanes for example]