Journal
ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 7, Issue 10, Pages 2072-2076Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b821466b
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- Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) [19760536]
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An indole-azadiene conjugate (1), synthesized by facile one-step condensation, behaves as a highly selective probe for detection of fluoride ion both in colorimetric and fluorometric analyses. The probe 1 shows F--selective color change from colorless to yellow and appearance of green fluorescence. H-1 NMR analysis and ab initio calculation reveal that the F--induced colorimetric and fluorometric responses of 1 are simply driven by hydrogen bonding interaction between the indolic NH protons and F-.
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