Dynamic Covalent Self-Assembly of Chloride- and Ion-Pair- Templated Cryptates

Autor: Hollstein, Selina, Shyshov, Oleksandr, Hanzevacki, Marko, Zhao, Jie, Rudolf, Tamara, Jäger, Christof M., von Delius, Max
Rok vydání: 2022
DOI: 10.5281/zenodo.7104398
Popis: While supramolecular hosts capable of bindingand transporting anions and ion pairs are now widelyavailable, self-assembled architectures are still rare,even though they offer an inherent mechanism for therelease of the guest ion(s). In this work, we report thedynamic covalent self-assembly of tripodal, urea-basedanion cryptates that are held together by two orthoesterbridgeheads. These hosts exhibit affinity for anions suchas Cl􀀀 , Br􀀀 or I􀀀 in the moderate range that is typicallyadvantageous for applications in membrane transport.In unprecedented experiments, we were able to dissociatethe Cs·Cl ion pair by simultaneously assembling suitably sized orthoester hosts around the Cs+ and theCl􀀀 ion.
Databáze: OpenAIRE