Facile synthesis of 3D covalent organic frameworks via a two-in-one strategy

Chem Commun (Camb). 2021 Mar 1;57(17):2136-2139. doi: 10.1039/d0cc08129a.


A "two-in-one" strategy was employed to construct 3D-COFs for the first time. Based on this strategy, a 3D-Flu-COF could be readily synthesized in various simplex organic solvents. Benefitting from the non-conjugated structure, the 3D-Flu-COF showcased excellent acidichromic sensing performance with good sensitivity, reversibility and naked eye visibility.