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A new click-derived tripodal receptor, tris[(9-anthryl benzyl-1H-1,2,3-triazole-4-yl)methyl]amine (1), was synthesized from tripropargylamine and anthracene azide by Cu(I)-catalyzed click chemistry. In acetonitrile/Tris-HCl (1:1, v/v, pH=7.2) buffer solutions, 1 showed exclusive fluorescence turn-off response to Ni2+ over other metal ions. The detection limit for Ni2+ is 7.1×10−7M.
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