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An Unsupported Uranium–Rhenium Complex Prepared by Alkane Elimination



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An unsupported uranium–rhenium bond has been prepared by alkane elimination by treatment of a cyclometallated alkyl uranium triamidoamine complex with rhenocene hydride (see scheme). DFT analysis reveals σ and π combinations in the U[BOND]Re bond, but the rhenium contributions dominate and an atoms-in-molecules analysis reveals a closed-shell, predominantly ionic uranium–rhenium interaction.