A metal containing fluorescent chemosensor was designed, synthesized, and studied for the quantification of citrate in common beverages. The sensor consists of Cu (II) bound by a 1, 10-phenanthroline ligand which is attached to a bis (aminoimidazolium) receptor (5). Receptor 5 was designed such that binding of the metal creates an additional binding site for citrate. This additional binding interaction was found to increase the metal and citrate ...
