Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 254, Issue -, Pages 52-58Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2017.07.048
Keywords
Click synthesis; Quinoline; Hexahomotrioxacalix[3]arene; Fluorescence chemosensor; Fe3+
Funding
- International Cooperation Projects of Guizhou Province [20137002]
- EPSRC
- Engineering and Physical Sciences Research Council [EP/L012804/1] Funding Source: researchfish
- EPSRC [EP/L012804/1] Funding Source: UKRI
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A novel quinoline-functionalized hexahomotrioxacalix[3]arene L was synthesized via Click chemistry and its chemosensing properties with various metal ions were investigated. The chemosensor L exhibited a high selectivity for Fe3+ with little interference from other environmentally and biologically relevant metal ions, leading to a prominent off-on type fluorescent signalling behaviour. Our studies demonstrated that the detection limit on fluorescence response of the sensor to Fe3+ is in the 10(-7) M range. The mechanism of the interaction between the L and Fe3+ has been investigated in detail by H-1 NMR spectroscopic titration experiments. (C) 2017 Elsevier B.V. All rights reserved.
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