HUANG Qiang, ZHU Wei-ju, YANG Lian-lian, LI Cun, NING Dian-hua, YU Yang. Synthesis and Properties of A New 4-Aminoantipyrine Schiff-base for Selective Recognition of Cu<sup>2+</sup>[J]. Chinese Journal of Luminescence, 2013,34(9): 1144-1148
HUANG Qiang, ZHU Wei-ju, YANG Lian-lian, LI Cun, NING Dian-hua, YU Yang. Synthesis and Properties of A New 4-Aminoantipyrine Schiff-base for Selective Recognition of Cu<sup>2+</sup>[J]. Chinese Journal of Luminescence, 2013,34(9): 1144-1148 DOI: 10.3788/fgxb20133409.1144.
Synthesis and Properties of A New 4-Aminoantipyrine Schiff-base for Selective Recognition of Cu2+
A new 4-aminoantipyrine-based Schiff-base (M) was synthesized. Its structure was characterized by using IR
1
H NMR and elemental analysis. The influences of a number of different metal ions on its UV-Vis absorption and fluorescence spectral were studied in acetonitrile. Spectroscopic studies revealed that compound M could detect Cu
2+
by UV-Vis absorption and fluorescence spectrophotometry. The stoichiometry ratio of M-Cu
2+
was 1:1
respectively. Moreover
the detection limit was calculated to be 1.41 mol/L for Cu
2+
ion. The analysis suggested that M could beh ave as a fluorescent sensor for the selective detection of Cu
2+
and the binding constant was 6.510
4
L/mol. Thus a new kind of chemosensor for Cu
2+
with high sensitivity and selectivity was introduced.
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Keywords
references
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