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A naked lithium cation is efficiently trapped within the [1.1]diborataferrocenophane dianion [1]2−, but released upon electrochemical oxidation of the ferrocene moieties. The complex [1-Li]Li([12]crown-4)2 provides the first experimental evidence for a theoretically predicted ferrocene⋅⋅⋅Li+ complex in which the Li+ ion is laterally bound to the Fe atom.
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Scheibitz et al. (2003) studied this question.
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