Research
4,548 papers- Crown Ether-Based Supramolecular Polymers: From Synthesis to Self-Assembly.Macromolecular rapid communications · 2022
- Crown Ether-Based Ion Transporters in Bilayer Membranes.Chemistry (Weinheim an der Bergstrasse, Germany) · 2023
- Crown-Ether-Based Artificial K(+) Selective Ionic Filter.Chembiochem : a European journal of chemical biology · 2025
- Crown-ether-mediated crystal structures of the glycosyltransferase PaGT3 from Phytolacca americana.Acta crystallographica. Section D, Structural biology · 2020
- Crown-ether threaded covalent organic polyrotaxane framework (COPF) towards synergistic crown/Zn(2+)/photothermal/photodynamic antibacterial and infected wound healing therapy.Biomaterials advances · 2024
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18-crown-6 coordinating to a potassium ion
In organic chemistry, crown ethers are cyclic chemical compounds that consist of a ring containing several ether groups ( R−O−R’). The most common crown ethers are cyclic oligomers of ethylene oxide, the repeating unit being ethyleneoxy, i.e., −CH2CH2O−. Important members of this series are the tetramer (n = 4), the pentamer (n = 5), and the hexamer (n = 6). The term "crown" refers to the resemblance between the structure of a crown ether bound to a cation, and a crown sitting on a person's head. The first number in a crown ether's name refers to the number of atoms in the cycle, and the second number refers to the number of those atoms that are oxygen. Crown ethers are much broader than the oligomers of ethylene oxide; an important group are derived from catechol.