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Proton and Electron Transfer Control of the Position of Cucurbit[n]uril Wheels in Pseudorotaxanes

机译:伪轮烷中葫芦[n]孔轮位置的质子和电子转移控制

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This paper presents an overview of recent work on the binding interactions between arnseries of 4,4'-bipyridinium (viologen) derivatives and the hosts cucurbit[6]uril (CB6)rnand cucurbit[7]uril (CB7), which give rise to stable 'wheel-on-an-axle' inclusionrncomplexes (pseudorotaxanes) in aqueous solution. The carboxylic acid termini onrnthe pseudorotaxane axle can be used as handles to control—via proton transferrnreactions—the relative position of the CB wheel along the axle. We also report on a different type of pseudorotaxanernin which the reversible oxidation of the axle's ferrocenyl end groups leads to controlled displacement of the CB7rnwheel.
机译:本文概述了有关4,4'-联吡啶(紫罗兰)衍生物与一系列葫芦[6] uril(CB6)rn和葫芦[7] uril(CB7)之间的相互作用的最新研究进展。水溶液中稳定的“轮轴式”夹杂物(伪轮烷)。伪轮烷轴上的羧酸末端可以用作手柄,通过质子传递反应控制CB轮沿轴的相对位置。我们还报道了另一种类型的拟轮烷,其轮轴二茂铁基端基的可逆氧化导致CB7rnwheel的受控位移。

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