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Assembly of a pyrene-based zinc(II)-organic framework with fluorescence property for selective sensing of nitroaromatic compounds.
- Source :
-
Polyhedron . Nov2021, Vol. 208, pN.PAG-N.PAG. 1p. - Publication Year :
- 2021
-
Abstract
- A newly pyrene functionalized zinc(II)-MOF was solvothermal synthesized and developed for fluorescence sensing of nitroaromatic compounds due to its good photoluminescence properties. [Display omitted] In this work, a zinc(II)-based metal–organic framework, namely [Zn 2 (TBAPy)(H 2 O)(DMF)]·4DMF·2H 2 O (JOU-34) (TBAPy = 1,3,6,8-tetrakis (p-benzoic acid) pyrene; DMF = N,N'-Dimethylformamide), has been solvothermally synthesized and characterized. Single-crystal X-ray diffraction shows that JOU-34 displays three-dimensional microporous framework with rare topology. Due to the introduction of pyrene groups, JOU-34 shows strong fluorescent emission cantered at about 470 nm. Furthermore, it shows a good fluorescence sensing performance toward nitroaromatic compounds, especially nitrobenzene (NB). Although the NB concentration was only 8.33 × 10−4 M, the quenching efficiency can reach 89 %. Further studies show that the quenching effect of JOU-34 in the presence of nitroaromatics may be attributed to the fluorescence resonant energy transfer and electron transfer between nitroaromatics and JOU-34. These results indicate that JOU-34 can be applied as a functional material for nitroaromatics detection. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02775387
- Volume :
- 208
- Database :
- Academic Search Index
- Journal :
- Polyhedron
- Publication Type :
- Academic Journal
- Accession number :
- 152516876
- Full Text :
- https://doi.org/10.1016/j.poly.2021.115439