Synthesis and characterization of tri-quinoline based receptors and study interactions with Zn2+ and Cu2+ ions

Two fluorescent receptors having three quinoline anchored flexible tether are synthesized and characterized. In solution these receptors from assemblies zinc or copper ions. Such assemblies are comprised of three receptor molecules with four metal ions which are established by micro-calorimetric study. Reversible switching of fluorescence intensities of a tri-quinoline receptor by sequential addition copper and zinc ions was observed.46