Informace o publikaci

pH Control on the Sequential Uptake and Release of Organic Cations by Cucurbit[7]uril

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MIKULŮ Lukáš MICHALICOVÁ Romana IGLESIAS Vivian YAWER Mirza Arfan KAIFER Angel LUBAL Přemysl ŠINDELÁŘ Vladimír

Rok publikování 2017
Druh Článek v odborném periodiku
Časopis / Zdroj Chemistry - A European Journal
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www http://onlinelibrary.wiley.com/doi/10.1002/chem.201604417/abstract
Doi http://dx.doi.org/10.1002/chem.201604417
Obor Organická chemie
Klíčová slova cage compounds; drug delivery; macrocycles; molecular devices; supramolecular chemistry
Popis Cucurbit[7]uril (CB7) is a macrocycle with the ability to form the most stable supramolecular complexes in water ever reported for an artificial receptor. Its use for the design of advanced functional materials is, however, very limited because there is no example of a fully reversible CB7 based supramolecular complex enabling repetitious dissociation/ association controlled by external stimuli. We report the synthesis of a new ferrocene amino acid that forms with CB7 a 1:1 inclusion complex that is stable in submicromolar concentration at low pH but dissociates at high pH. This reversible process was used for the sequential uptake and release of bispyridinium and antraquinone guests by CB7, which is controlled by adjusting the pH of the solution.
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