Reversible Fluorescence Switching of Donor & #x2013;Acceptor Type Bipyridines by Simple Protonation & #x2013;Deprotonation Equilibria

Shaik Mubeena, Meghana N, Gayatri Annapareddy, Yi-Sheng Chen, Monima Sarma, Ken-Tsung Wong Three-level reversible fluorescence switching of donor–acceptor type bipyridine molecules by simple protonation–deprotonation equilibria is discussed with detailed analysis of the relevant steps. Site-specific protonation causes structural changes in absorbing and emitting species and their ratio, which leads to dramatic change in fluorescence.
Source: Australian Journal of Chemistry - Category: Chemistry Authors: Source Type: research