Emissive Covalent Organic Frameworks: Improved Fluorescence via Flexible Building Blocks and Selective Sensing of Nitroaromatic Explosives.
Macromol Rapid Commun
; : e2400673, 2024 Sep 28.
Article
in En
| MEDLINE
| ID: mdl-39340484
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.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Macromol Rapid Commun
Year:
2024
Document type:
Article
Affiliation country:
China
Country of publication:
Germany