Heptacarbonylbis(μ-propane-1,3-dithiolato)triiron(I,II)(2 Fe—Fe)
نویسندگان
چکیده
The trinuclear title compound, [Fe3(C3H6S2)2(CO)7], is a mixed-valent Fe(I)/Fe(II) complex and crystallizes with two mol-ecules of similar configuration in the asymmetric unit. The three Fe atoms in each mol-ecule display a bent arrangement [Fe-Fe-Fe = 156.22 (4) and 157.06 (3)°]. Both outer Fe(I) atoms are six-coordinated in a distorted ocahedral coordination geometry defined by the bridging Fe(II) atom, three carbonyl C atoms and two bridging S atoms. The coordination number of the central Fe(II) atom is seven and includes bonding to the two outer Fe(I) atoms, four bridging S atoms and one carbonyl C atom. The resulting coordination polyhedron might be described as a highly distorted monocapped trigonal prism. In the crystal packing, the mol-ecules exhibit a chain-like arrangement parallel to [100] and [001], and the resulting layers are stacked along [010]. The cohesion of the structure is dominated by van der Waals inter-actions.
منابع مشابه
Pentacarbonyl-1κ2 C,2κ3 C-(4-iodophenyl isocyanide-1κC)(μ-propane-1,3-dithiolato-1:2κ4 S,S′:S,S′)iron(I)(Fe—Fe)
In the title compound, [Fe(2)(C(7)H(4)IN)(C(3)H(6)S(2))(CO)(5)], the Fe-Fe distance of 2.5156 (11) Å compares well with that in related model structures. The phenyl isocyanide ligand is in the basal position and trans to the S atoms of the propane-dithiol-ate ligand due to steric hindrance. The crystal structure features C-H⋯O inter-actions.
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