Formaldehyde recognition through aminal formation in a luminescent metal-organic framework

Two isostructural pillar-layer MOFs (JNU-105 and JNU-105-(NH 2 ) 2 ) have been successfully synthesized. JNU-105-(NH 2 ) 2 exhibits a red-shifted luminescence "turn on" for formaldehyde without the interference from other VOCs and a detection limit of 1.87 ppb. In situ single-crystal trans...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2022-06, Vol.58 (45), p.649-6493
Main Authors: Li, Jia-Li, Xiong, Xiao, Luo, Dong, Wei, Yu-Bai, Lu, Weigang, Li, Dan
Format: Article
Language:English
Subjects:
Formaldehyde
Luminescence
Metal-organic frameworks
Single crystals
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Summary:Two isostructural pillar-layer MOFs (JNU-105 and JNU-105-(NH 2 ) 2 ) have been successfully synthesized. JNU-105-(NH 2 ) 2 exhibits a red-shifted luminescence "turn on" for formaldehyde without the interference from other VOCs and a detection limit of 1.87 ppb. In situ single-crystal transformation studies confirm the aminal formation on the pillar linker, which was attributed to the exclusive luminescence response toward formaldehyde. Reticular synthesis of a pillar-layer metal-organic framework with a diamino-functionalized dicarboxylate as a pillar linker, realizing an exclusive luminescence response toward formaldehyde through aminal formation.
ISSN:1359-7345
1364-548X
DOI:10.1039/d2cc02041f