Abstract
A dicyanovinyl-substituted benzofurazan derivative (C1) was prepared as an efficient ratiometric chemosensor for cyanide anion detection in aqueous acetonitrile solution. Mechanism studies suggested that the nucleophilic addition of cyanide to the α-position of the dicyanovinyl group blocked the ICT progress of C1 and induced remarkable emission and absorption shift.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Acetonitriles / chemistry
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Anions / analysis
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Benzoxazoles / chemical synthesis*
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Chemistry Techniques, Analytical
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Cyanides / analysis*
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Fluorescent Dyes / chemical synthesis*
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Magnetic Resonance Spectroscopy
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Models, Molecular
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Molecular Structure
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Sensitivity and Specificity
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Solutions
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Spectrometry, Fluorescence
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Vinyl Compounds / chemical synthesis*
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Water
Substances
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Acetonitriles
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Anions
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Benzoxazoles
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Cyanides
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Fluorescent Dyes
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Solutions
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Vinyl Compounds
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Water
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benzofurazan
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acetonitrile