Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 228, Issue -, Pages 480-485Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2016.01.051
Keywords
Hexahomotrioxacalix[3]arene; Fluorescent chemosensor; Pyrene; Zn2+
Funding
- OTEC at Saga University
- International Cooperation Projects of Guizhou Province [20137005]
- 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 new pyrenyl appended hexahomotrioxacalix[3]arene L featuring 1,2,3-triazole linkers was synthesized as a fluorescent chemosensor for Zn2+ in mixed aqueous media. It exhibited high affinity toward Zn2+, and the monomer and excimer emission of the pyrene moieties could be adjusted. The binding stoichiometry of the L Zn2+ complex was determined to be 1:1, and the association constant (Ka) was found to be 7.05 x 10(4) M-1. The binding behavior with Zn2+ has been confirmed by H-1 NMR spectroscopic analysis. (C) 2016 Elsevier B.V. All rights reserved.
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