Selective detection of guanosine-5′-triphosphate and iodide by fluorescent benzimidazolium-based cyclophanes†
Abstract
New fluorescent benzimidazolium-based receptors selectively display the effective fluorescence quenching effect for biologically important anions, GTP and I−, in aqueous solution of physiological pH 7.4. These affinities can be attributed to the strong ionic H-bonding along with additional interactions of fluorophore moieties with the nucleic base of GTP and I−.