Issue 9, 2022

Enhanced emission by stacking of crown ether side chains in a 2D covalent organic framework

Abstract

Hydrazone compounds could be highly emissive in the solid state. However, most hydrazone-linking COFs are poorly luminescent. Here we report the enhancement of fluorescence in a 2D hydrazone-linking COF by side chain engineering. Stacking of the bulky and semi-rigid crown ether side chains restricts intramolecular rotation of the backbone around the hydrazone linkers, reducing the thermal dissipation and achieving 20-fold improved emission.

Graphical abstract: Enhanced emission by stacking of crown ether side chains in a 2D covalent organic framework

Supplementary files

Article information

Article type
Communication
Submitted
26 Jun 2021
Accepted
20 Dec 2021
First published
20 Dec 2021

Chem. Commun., 2022,58, 1302-1305

Enhanced emission by stacking of crown ether side chains in a 2D covalent organic framework

L. Yuan, J. Zhu, S. Wu and C. Chi, Chem. Commun., 2022, 58, 1302 DOI: 10.1039/D1CC03409J

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