Abstract
A novel fluorescent probe potassium 4-(1,4,5-triphenyl-1H-imidazol-2-yl)anilinyl acetate (PPIA) was designed and synthesized. It exhibited very strong sensitive, selective, and irreversible for Cu2+ over other commonly coexistent metal ions (Ca2+, Mg2+, Ni2+, Co2+, Cu+, Hg2+, Zn2+, Ba2+, Ag+, and Cd2+) in aqueous environment (pH 7.4). Moreover, according to the Job plot, 2:1 stoichiometry between PPIA and Cu2+ was deduced in aqueous media. A B3LYP/6-31 G(d) basis set was employed for optimization of PPIA and PPIA·Cu2+ complex.
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This work was supported by the Science Fund for Young Scholars of Heilongjiang Province of China (No. QC2009C61), the Program for Education Department of Heilongjiang Province (No. 12541862).
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Zhao, B., Xu, Y., Ma, M. et al. A selective fluorescence probe for copper(II) ion in aqueous solution based on 4-(1,4,5-triphenyl-1H-imidazol-2-yl)anilinyl acetates. Res Chem Intermed 41, 8031–8040 (2015). https://doi.org/10.1007/s11164-014-1875-3
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DOI: https://doi.org/10.1007/s11164-014-1875-3