A Lawsone–DAMN based colorimetric chemosensor for rapid naked-eye detection of mercury(ii)

Abstract

A highly sensitive and selective chemosensorLexhibited well-defined naked-eye visible color changes from yellow to pink, which was used for Hg²⁺detection in acetonitrile. For the selective recognition of Hg²⁺ions, it forms a 1 : 1 stoichiometric complex involving naphthoquinone hydroxyl and diaminomaleonitrile nitrogen functionalities.