Self-assembly of a ternary architecture driven by cooperative Hg~(2+) ion binding between cucurbit[7]uril and crown ether macrocyclic hostsf

摘要

A novel supramolecular assembly comprising CB[7], styrylpyridinium dye (1) and Hg~(2+) forms in aqueous solution based on the hydrophobic effect and metal-ligand and ion-dipole interactions. The binding of Hg~(2+) to 1 CB[7] displays positive cooperativity relative to 1 itself.