Bis[1,2-bis(ethoxycarbonyl)ethene-1,2-dithiolato-κ2S,S′]bis(η5-pentamethylcyclopentadienyl)tetra-μ3-sulfido-diiron(IV)diiron(III)(3 Fe—Fe)

The title compound, [Fe4(C10H15)2(C8H10O4S2)2S4], contains a twisted Fe4S4 cubane-like core. A twofold rotation axis passes through the Fe4S4 core, completing the coordination of the four Fe atoms with two pentamethylcyclopentadienyl ligands and two chelating dithiolate ligands. There are three short Fe—Fe and three long Fe...Fe contacts in the Fe4S4 core, suggesting bonding and non-bonding interactions, respectively. The Fe—S bonds in the Fe4S4 core range from 2.1523 (5) to 2.2667 (6) Å and are somewhat longer than the Fe—S bonds involving the dithiolate ligand