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A dual-model and on-off fluorescent Al3+/Cu2+-chemosensor and the detection of F-/Al3+ with ''in situ'' prepared Al3+/Cu2+ complexes
作者:Li, X. Y.; Yu, M. M.; Liu, X. J.; Yang, F. L.; Wei, L. H.; Li, Z. X.*
關鍵字:1,1''-BINAPHTHYL SCAFFOLD; AQUEOUS-MEDIA; ALUMINUM ACCUMULATION; RELAY RECOGNITION; HYBRID LIGAND; AL3+ SENSOR; CHEMOSENSOR; PROBE; ION; CHEMODOSIMETER
論文來源:期刊
具體來源:New J. Chem. 2013, 37, 2257?2260.
發表時間:2013年
A multifunctional fluorescent chemosensor for Al3+ and Cu2+ has been developed, which displays a dual-model and on-off fluorescence response upon addition of Al3+ and Cu2+ respectively. The fluorescence signals of the chemosensor can be restored with F- and ethylenediaminetetraacetic acid (EDTA) disodium for Al3+ and Cu2+, showing that the binding of the chemosensor and Al3+/Cu2+ is chemically reversible. The ''in situ'' prepared Al3+ complex (1 center dot Al) showed high selectivity toward F-, which can be applied to distinguish F- from Cl-, Br- and I-. Moreover, the fluorescence emission intensity of the ''in situ'' prepared Cu2+ complex (1 center dot Cu) is increased with the addition of Al3+, demonstrating that 1 center dot Cu could be a good off-on Al3+ sensor candidate.
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