Issue 27, 2022

A tunable full-color lanthanide noncovalent polymer based on cucurbituril-mediated supramolecular dimerization

Abstract

The construction of lanthanide multicolor luminescent materials with tunable photoluminescence properties has been developed as one of the increasingly significant topics and shown inventive applications in miscellaneous fields. However, fabricating such materials based on synergistically assembly-induced emission rather than simple blending of different fluorescent dyes together still remains a challenge. Herein, we report a europium-based noncovalent polymer with tunable full-color emission, which is constructed from the 2,6-pyridinedicarboxylic acid-bearing bromophenylpyridinium salt. This rationally designed bifunctional component can concurrently serve as a guest molecule and a chelating ligand to associate with cucurbit[8]uril and europium ions, thus leading to the formation of a trichromatic (red–green–blue, RGB) photoluminescent polypseudorotaxane-type noncovalent polymer in aqueous solution. Meanwhile, the full-color emission enclosed within the RGB color triangle could be readily produced by simply tuning the molar ratio of cucurbit[8]uril and europium ions. The lanthanide supramolecular polymer featuring tricolor emission, long lifetime, high photoluminescence efficiency and low cytotoxicity could be further applied in multicolor imaging in a cellular environment. These results provide a new and feasible strategy for the construction of full-color single lanthanide self-assembled nanoconstructs.

Graphical abstract: A tunable full-color lanthanide noncovalent polymer based on cucurbituril-mediated supramolecular dimerization

Supplementary files

Article information

Article type
Edge Article
Submitted
28 Apr 2022
Accepted
17 Jun 2022
First published
17 Jun 2022
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2022,13, 8187-8192

A tunable full-color lanthanide noncovalent polymer based on cucurbituril-mediated supramolecular dimerization

H. Yu, X. Zhou, X. Dai, F. Shen, Q. Zhou, Y. Zhang, X. Xu and Y. Liu, Chem. Sci., 2022, 13, 8187 DOI: 10.1039/D2SC02384A

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