AI Article Synopsis
- 2D covalent organic frameworks (COFs) are promising for fluorescence sensing because they are lightweight, durable, and have a well-structured porous design.
- The study addresses the issue of aggregation-caused quenching (ACQ) in COFs by designing two flexible hydrazone-linked versions that improve luminescent performance.
- These COFs have a high density of nitrogen and oxygen atoms, which allows them to effectively bind with and detect 2,4,6-trinitrophenol, enhancing sensitivity and selectivity.
Article Abstract
2D covalent organic frameworks (COFs) are attractive for fluorescence sensing due to their lightweight, robust, and highly ordered porous structures. However, the highly conjugated structures between adjacent layers of covalent organic frameworks can often result in aggregation-caused quenching (ACQ) properties. Here, the study designs two flexible hydrazone-linked COFs to suppress ACQ effects, thereby enhancing their luminescent activities. Furthermore, the high density of nitrogen and oxygen atoms on these flexible walls serves as binding sites for hydrogen bonding interactions, indicating sensitivity and selectivity towards 2,4,6-trinitrophenol detection.
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| http://dx.doi.org/10.1002/marc.202400673 | DOI Listing |
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