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Binding of bambusuril with bipyridinium guests in water

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SLEZIAKOVÁ Kristína AVEI Mehdi Rashvand KAIFER Angel E. ŠINDELÁŘ Vladimír

Rok publikování 2018
Druh Článek v odborném periodiku
Časopis / Zdroj Supramolecular Chemistry
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www Binding of bambusuril with bipyridinium guests in water
Doi http://dx.doi.org/10.1080/10610278.2017.1395026
Klíčová slova Bambusurils; anion receptors; host-guest chemistry; viologens; macrocycles
Popis Bambusurils are a family of receptor molecules related to the cucurbit[n]urils and appreciated for their high affinities to inorganic anions. Here we show that a bambusuril macrocycle bearing carboxylate functional groups on its portals can form external complexes with bipyridinium cationic guests in aqueous solution. The apparent binding affinities of the complex can be modulated by the addition of potassium cations, which compete with the guests for the carboxylate portals of the macrocycle. We further illustrate that the binding mode of these host-guest systems varies depending on the choice of bipyridinium guests.
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