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  • Joseph, Chris; Kuppuswamy, Subramaniam; Lynch, Vincent M; Rose, Michael J

    Inorganic chemistry, 2017-Dec-18
    Journal Article

    Herein we report the synthesis, X-ray structure, and characterization of the title pentairon (molybdo)carbido cluster. The reaction of the pentairon (μ -carbido) dianion Fe (μ -C)(μ -CO) (CO) (1) with Mo(CO) (chpt) (chpt = cycloheptatriene) forms the heterohexanuclear cluster K(benzo-18-crown-6) Fe Mo(μ -C)(μ -CO) (CO) (2). The dianion exhibits a Fe Mo(μ -C) core structure supported by three bridging (ν = 1788 cm ) and terminal (ν = 1943 cm ) CO ligands. Cluster 2 provides the selective reduction of diphenylacetylene to cis-diphenylethylene via a spectroscopically observed cluster-hydride intermediate ( H NMR: δ -26).