Abstract

A simple and novel receptor 1 based on indole-3-aldehyde and 2, 4-diphenylhydrazine is synthesized by a simple way, which displays good selectively and sensitivity for detection of acetate, fluoride and dihydregen phosphate anion in dry DMSO and in DMSO/H2O (95/5) solutions. Combining with the anions induces the visible color changes that the naked-eye detection maybe realized. Meanwhile, the binding properties are tested and determined by UV-vis, fluorescent changes and 1H NMR experiments in DMSO-d6.

Keywords: Indole, Phenylhydrazone, anion recognition, Naked-eye recognization, indole-3-aldehyde and 2, 4-diphenylhydrazine, DMSO, indolealdehyde hydrazone, tetrabutylammonium, 1H NMR spectra, Varian UNITY Plus-400, MHZ Spectrometer, Shimadzu UV-2450 Spectrophotometer, TBA, Job's plot, photoinduced electronic transfer, indolealdehyde, 2, 4-dinitrophenylhydrazine