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A differentially selective sensor with fluorescence turn-on response to Zn2+ and dual-mode ratiometric response to Al3+ in aqueous media
被引:313
|作者:
Maity, Debabrata
[1
]
Govindaraju, T.
[1
]
机构:
[1] Jawaharlal Nehru Ctr Adv Sci Res, New Chem Unit, Bioorgan Chem Lab, Bangalore 560064, Karnataka, India
关键词:
COORDINATION;
CHEMOSENSORS;
COUMARIN;
ALUMINUM;
ZINC;
D O I:
10.1039/c1cc16064h
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
A novel quinoline-coumarin (QC) fluoroionophore conjugated by means of a triazolyl-pyrrolidinyl linker exhibits differential dual selectivity for Zn2+ and Al3+ in mixed media. QC acts as a turn on fluorescence sensor for Zn2+ while exhibiting overall ratiometric selectivity for Al3+ in aqueous media. Moreover, QC exhibited preferential second mode of selectivity for Al3+ as it ratiometrically displaces Zn2+ from the [QC + Zn2+] complex.
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页码:1039 / 1041
页数:3
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