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A Powerful Turn‐On Fluorescent Probe for Phosgene: A Primary Amide Strategically Attached to an Anthracene Fluorophore
Author(s) -
Gangopadhyay Ankita,
Ali Syed Samim,
Mahapatra Ajit Kumar
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201901453
Subject(s) - phosgene , anthracene , fluorophore , amide , fluorescence , moiety , chemistry , photochemistry , nitrile , combinatorial chemistry , organic chemistry , physics , quantum mechanics
We report here the application of a robust, selective primary amide moiety appended to a fluorescence signalling entity‐ anthracene, the sensing platform, 9‐AM with a view to fluorescent chemosensing of hazardous phosgene gas. The impressively fast (reaction time<1.5 min) detection of phosgene was achieved through the dehydration of the primary amide functionality to a nitrile group. A low detection limit of 5.56 nm ensures applicability of the probe for sensing of minute levels of phosgene well below prescribed safe limits. In addition, TLC sticks impregnated with the probe function as efficient gas phase phosgene sensors with real‐time applicability.