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Issue 7, 2014
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Dansyl–antipyrine dyad as a fluorescent sensor for Cu2+ and F: sequential XNOR logic operation

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Abstract

Dansyl and antipyrine based hybrid molecular architectures were synthesized and their photophysical behavior towards various cations and anions was investigated. The dyad 1 was used for selective estimation of Cu2+ ions as compared to other metal ions and the binding event was indicated through formation of a new absorption band at 465 nm and a decrease in fluorescence intensity at 528 nm. The dyad 1 showed ratiometric fluorescence behavior towards fluoride ions through hydrogen bonding interactions and restricted the photoinduced electron transfer from dansyl to antipyrine moiety to release its fluorescence at 428 nm. The chemical inputs of Cu2+ and F ions to dyad 1 mimicked a sequence dependent operation of an exclusive-NOR (XNOR) logic gate.

Graphical abstract: Dansyl–antipyrine dyad as a fluorescent sensor for Cu2+ and F−: sequential XNOR logic operation

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Publication details

The article was received on 12 Jan 2014, accepted on 18 Feb 2014 and first published on 20 Feb 2014


Article type: Paper
DOI: 10.1039/C4NJ00060A
Citation: New J. Chem., 2014,38, 2841-2846
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    Dansyl–antipyrine dyad as a fluorescent sensor for Cu2+ and F: sequential XNOR logic operation

    V. Luxami, A. S. Gupta and K. Paul, New J. Chem., 2014, 38, 2841
    DOI: 10.1039/C4NJ00060A

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