Publication details

Bambusuril Macrocycles as Mediators of Supramolecular Interactions: Application to the Europium Cage Helicate

Authors

HAMACEK Josef SOKOLOV Jan ŠINDELÁŘ Vladimír

Year of publication 2021
Type Article in Periodical
Magazine / Source Chemistry - A European Journal
MU Faculty or unit

Faculty of Science

Citation
Web https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/chem.202005140
Doi http://dx.doi.org/10.1002/chem.202005140
Keywords anion binding; bambusuril; chiral reagents; europium; helicates
Description Herein, it is shown how bambusurils can be used for tuning and/or characterizing supramolecular systems. Indeed, the addition of bambusurils as anion scavengers to metal-mediated self-assemblies allows manipulation of the subtle equilibria in the given system. This is demonstrated for the case of the tetranuclear europium helical cage, which is well suited to different applications. Among the reported results, experimental evidence is provided showing that perchlorate and triflate anions act as a molecular template for the cage assembly. The complexation of inorganic anions with neutral bambusurils resulted in bulky non-coordinating counterions that may trigger the self-assembly process or stimulate specific interactions between components. Moreover, bambusuril was able to selectively remove coordinating nitrates from the mixture with non-coordinating anions, enabling the regeneration of the helical cage.
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