Reversible reduction drives anion ejection and C60 binding within an Fe II4L6 cage

文献情報

出版日 2019-12-05

DOI 10.1039/C9SC05728E

インパクトファクター 9.825

著者

Zhenpin Lu, Tanya K. Ronson, Jonathan R. Nitschke

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要旨

FeII4L6 tetrahedral cage 1 was prepared from a redox-active dicationic naphthalenediimide (NDI) ligand. The +20 charge of the cage makes it a good host for anionic guests, with no binding observed for neutral aromatic molecules. Following reduction by Cp2Co, the cage released anionic guests; subsequent oxidation by AgNTf2 led to re-uptake of anions. In its reduced form, however, 1 was observed to bind neutral C60. The fullerene guest was subsequently ejected following cage re-oxidation. The guest release process was found to be facilitated by anion-mediated transport from organic to aqueous solution. Cage 1 thus employs electron transfer as a stimulus to control the uptake and release of both neutral and charged guests, through distinct pathways.

掲載誌

Chemical Science

CiteScore: 14.4

自己引用率: 3.9%

年間論文数: 1413

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Reversible reduction drives anion ejection and C60 binding within an Fe II4L6 cage

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