New terphenyl based mercury ensemble for detection of acetate ions in a plasma like system

Abstract

A new terphenyl based chemosensor 3 has been designed and synthesized. The binding behavior of 3 and its chemosensing ensemble 3–Hg toward various anions (F⁻, Cl⁻, Br⁻, I⁻, HSO₄⁻, H₂PO₄⁻, CH₃COO⁻, NO₃⁻, N₃⁻, SO₄²⁻, SO₃²⁻, and Cr₂O₇²⁻) has been investigated by UV-Vis, fluorescence and NMR spectroscopy. Compound 3 shows a sensitivity for both F⁻ and CH₃COO⁻ ions among various anions tested, whereas the ensemble 3–Hg shows a better selectivity for CH₃COO⁻ ions. The ensemble is utilized for CH₃COO⁻ recognition in a blood plasma like system.