Investigation of single MoFe3S4 cubane-like clusters: IV. Synthesis and structure of a novel doublybridged single cubane-like cluster compound MoFe3S4(μ-Me2dtc)2(Me2dtc)4·2CH3CN

By reacting (NH₄)₂MoS₄, FeCl₂ and Me₂dtcNa at room temperature, we have synthesized in one pot two single cubane-like cluster compounds, MoFe₃S₄(Me₂dtc)₅·CH₂Cl₂ (1) and MoFe₃S₄-(Me₂dtc)₆·2CH₃CN (3), which were separated by stepwise crystallization. The structure of 3 was solved and refined for 5183 reflections to final R value of 0.069. Compound 3 is a novel cluster possessing the highest core oxidation state MoFe₃S₄]⁶⁺ and contains two Me₂dtc bridges. The structural feature of 3 is reported and the observation that several single cubane-like clusters containing various oxidation states can coexist in an assembly system is discussed.