A new click-derived tripodal receptor for fluorescence recognition of Ni2+ in aqueous solution

• New tripodal triazole-based receptor was synthesized by click reaction.
• This receptor show distinctive fluorescence sensing of Ni2+.
• The detection limit for Ni2+ is low.

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 × 10−7 M.

A new tripodal triazole-based receptor for fluorescence sensing of Ni2+ in aqueous solution is reported.Figure optionsDownload as PowerPoint slide