Bis[1,2-bis(methoxycarbonyl)ethene-1,2-dithiolato-κ2 S,S′]bis(η5-pentamethylcyclopentadienyl)tetra-μ3-sulfido-tetrairon(4 Fe–Fe) hexafluoridophosphate
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چکیده
The asymmetric unit of the title compound, [Fe4(C6H6O4S2)2(C10H15)2S4]PF6, contains two different complex cations and two PF6 (-) anions. The two complex cations have similar conformations with the butterfly-like Fe4S4 core surrounded by two penta-methyl-cyclo-penta-dienyl ligands and the S atoms of two dithiol-ate ligands. In each Fe4S4 core, there are four short Fe-Fe and two long Fe⋯Fe contacts, suggesting bonding and non-bonding inter-actions, respectively. The Fe-S distances range from 2.1287 (13) to 2.2706 (16) Å for one and from 2.1233 (13) to 2.2650 (16) Å for the other Fe4S4 core. The Fe-S distances involving the dithiol-ate ligands are in a more narrow range [2.1764 (16)-2.1874 (13) Å for one and 2.1743 (14)-2.1779 (16) Å for the other cation]. There are no significant inter-actions between cations and anions.
منابع مشابه
Bis[1,2-bis(ethoxycarbonyl)ethene-1,2-dithiolato-κ2 S,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 penta-methyl-cyclo-penta-dienyl ligands and two chelating dithiol-ate ligands. There are three short Fe-Fe and three long Fe⋯Fe contacts in the Fe4S4 core, suggesting bonding and non-bonding ...
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