Covalent organic nanocage with aggregation induced emission property and detection for Hg2+ as fluorescence sensors

In recent decades, It has been very pleasing to witness the astonishing and tremendous development of supramolecular chemistry research field into a popular and vigorous discipline. Here, we prepared covalent organic nanocages modified with benzothiadiazole dibenzaldehyde and tridiaminoethylamine through coordination driven self-assembly. Interestingly, the nano Cage I exhibits excellent aggregation induced emission (AIE) performance and stimulated response luminescence characteristics, and achieves adjustable photoluminescence intensity and color. Based on this, we utilize these excellent optical properties to make the cage serve as fluorescent ink for recording and erasing vapor response information. In addition, we also use covalent organic nanocages with AIE characteristics to detect Hg2+ as fluorescent sensors, which is beneficial for the protection of environmental pollution. [Display omitted]