The threading of bis(dialkylammonium) ions through the DB24C8-like openings of a molecular cage proceeds through a stepwise mechanism: formation of a face-to-face complex between the NH2(+) centers and the crown ether, significant dissociation of this complex, and passage of the terminus of the cation through the macrocycle.

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http://dx.doi.org/10.1039/c2cc34669aDOI Listing

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The threading of bis(dialkylammonium) ions through the DB24C8-like openings of a molecular cage proceeds through a stepwise mechanism: formation of a face-to-face complex between the NH2(+) centers and the crown ether, significant dissociation of this complex, and passage of the terminus of the cation through the macrocycle.

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