Key Words:Fluorescence;Charge transfer - Excited states;Complex modes - Fluorescence enhancement - Fluorescence intensities - Fluorescent chemosensor - High selectivity - Intramolecular charge transfers - Schiff-base - Schiff-base derivatives
Abstract:A Schiff base derivative, N-(3-methoxy-4-hydroxybenzylidene)salicyloylhydrazone (L), shows high selectivity to Lu³⁺not only in abiotic systems but also in living cells with fluorescence. The presence of PVP can increase the fluorescence intensity. The fluorescence enhancement is presumably due to a combinational effect of intramolecular charge transfer (ICT) and excited-state intra/intermolecular proton transfer (ESPT) during the chelation of L to Lu³⁺in a 2:1 complex mode.<br/> &copy; 2017 The Royal Society of Chemistry.
Volume:9
Issue:44
Translation or Not:no