Synthesis of diiron sulfur clusters containing thiolato-1,8-naphthalene imide ligand

Abstract

Three diiron sulfur clusters containing thiolato-1,8-naphthalene imide ligand, [Cp*Fe(μ-4,5-S2-nBu-NMI)(μ-CO)FeCp*] (3a), [Cp′Fe(μ-4,5-S2-nBu-NMI)(μ-CO)FeCp′] (3b), [CpFe(nBu-NMI-S)]2 (4) (3a: Cp*=η5-C5Me5; 3b: Cp′=η5-C5HMe4; 4: Cp=η5-C5H5; nBu-NMI=N-butyl-1,8-naphthalene imide) were synthesized via the reaction of N-butyl-4,5-disulfide-1,8-naphthalene imide and [Cp†Fe(μ-CO)CO]2 (Cp†=Cp*, Cp′, Cp). A partially desulfurated product [CpFe(nBu-NMI-S)]2 was determined in the reaction of [CpFe(μ-CO)CO]2 with nBu-NMI 4,5-dithiolate. The new complexes were structurally characterized by X-ray analysis.