'Cleft-form' electrochemical anion chemosensor with amide and triazole donor groups

A novel 'cleft-form' electrochemical anion receptor bearing amide and triazole donor groups, 1, has been synthesized and characterized. Among various anions, 1 shows a significant anodic shift response for H2PO4- and F−, with its multiple N-H⋯anion and C-H⋯anion interactions, which is supported by theoretical calculation and NMR titration results.