Green, Efficient Detection and Removal of Hg²⁺ by Water-Soluble Fluorescent Pillar[5]arene Supramolecular Self-Assembly.

ABSTRACT: Developing a water-soluble supramolecular system for the detection and removal of Hg²⁺ is extremely needed but remains challenging. Herein, we reported the facile construction of a fluorescent supramolecular system (H⊃G) in 100% water through the self-assembly of carboxylatopillar[5]arene sodium salts (H) and diketopyrrolopyrrole-bridged bis(quaternary ammonium) guest (G) by host-guest interaction. With the addition of Hg²⁺, the fluorescence of H⊃G could be efficiently quenched. Since Hg²⁺ showed synergistic interactions (coordination and Hg²⁺- cavity interactions with G and H, respectively), crosslinked networks of H⊃G@Hg²⁺ were form

SUBMITTER: Jiang X 

PROVIDER: S-EPMC9405992 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature