Synthesis, Structure, and Photoluminescence Properties of a Metal-Organic Framework with Hexagonal Channels: Selective Turn-On Sensing for Mg2+ Ion
- Authors
- Eom, Sunhwi; Park, Sora; Song, Jeong Hwa; Lee, Woo Ram; Lee, Han Geul; Kang, Dong Won; Joung, Joonyoung Francis; Park, Sungnam; Moon, Dohyun; Hong, Chang Seop
- Issue Date
- 17-1월-2019
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- Metal-organic frameworks; Luminescence; Sensors
- Citation
- EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, no.2, pp.330 - 335
- Indexed
- SCIE
SCOPUS
- Journal Title
- EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
- Number
- 2
- Start Page
- 330
- End Page
- 335
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/131495
- DOI
- 10.1002/ejic.201801291
- ISSN
- 1434-1948
- Abstract
- A three-dimensional Cd2+ framework (1) with wide one-dimensional hexagonal channels was prepared based on a tripodal tricarboxylate ligand possessing nitrogen donor atoms. The Cd atoms form a chain structure bridged by carboxylates and aqua ligands. Upon Mg2+ ion capture, the fluorescence emission of this porous material was 5.2 times greater than its Mg2+-free fluorescence. To the best of our knowledge, such enhancement has not been previously reported for metal-organic framework sensory systems. The sensing performance of 1 is reversible over repeated cycles of Mg2+ inclusion and release, revealing the reusability of this material. In the presence of other tested metal ions, Mg2+ ions were selectively detected owing to the operation of this "turn-on" mechanism. Thus, this platform is a promising sensor material for selective Mg2+ ion recognition.
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