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Selective Dimetalation of [Mn(η5-C5H5)(η6-C6H6)]: Crystal Structure and Conversion to Strained [n]Metalloarenophanes


  • This work was supported by the DFG. T.K. thanks the FCI for a Ph.D. stipend. We are grateful to the BASF AG for a generous donation of chemicals. n=1, 2.


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The heteroleptic sandwich complex [Mn(η5-C5H5)(η6-C6H6)] was selectively dilithiated with BuLi/pmdta to afford the highly reactive derivative [Mn(η5-C5H4Li)(η6-C6H5Li)]⋅pmdta, which was structurally characterized by X-ray diffraction (pmdta=pentamethyldiethylenetriamine). Reactions with element dihalides yielded the corresponding [2]borametalloarenophane and [1]silametalloarenophane in good yields (see scheme).

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