Journal
DALTON TRANSACTIONS
Volume 41, Issue 43, Pages 13338-13342Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2dt31641b
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Funding
- National Nature Science Foundation of China [21031006, 90922017, 20971127]
- National Basic Research 973 Program of China [2011CB932302, 2012CB932900]
- NSFC-DFG [TRR 61]
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s-Tetrazine and their derivatives are found to be a class of selective and colorimetric chemosensors for fluoride anions. The supramolecular interaction (anion-pi and charge/electron transfer) between fluoride ion and p-electron deficient tetrazines receptor could facilitate the F--tetrazines electron transfer (ET) event that generates tetrazine(center dot-) radical anion. Accordingly, the color of its solution changed from red to green. Furthermore, the recognition of F- in DMSO is tolerant to water (DMSO-H2O = 9 : 1, v/v) and shows excellent selectivity towards other anions, especially H2PO4- and OAc-.
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