A new on-fluorescent sensor for Ag⁺based on benzimidazole bearing bis(ethoxycarbonylmethyl)amino groups

Abstract

A new fluorescent sensor based on a benzimidazole unit bearing bis(ethoxycarbonylmethyl) amino groups was designed and synthesized. The ligand exhibits strong sensitivity and selectivity for Ag + by enhanced fluorescent intensity in the presence of a wide range of other tested metal ions in methanol. The colorimetric and fluorescent response to Ag + can be conveniently detected even by the naked eye, which offers a facile method for visual detection of Ag + .

A Fluorimetric Method Based on an Imidazole Compound for Cu2+ Determination in Tap Water

“…e structural properties of these compounds also make them fluorescent compounds. However, there are a limited number of studies on the fluorescence properties of benzimidazole compounds [16][17][18][19][20][21].…”

“…ere are studies reporting that benzimidazole derivative compounds interact selectively with metal ions [18][19][20]. Benzimidazole derivatives which are proposed as fluorescent sensors for iodide and phosphate ions are mentioned [19,21].…”